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Showing posts with label Narrowband color images. Show all posts
Showing posts with label Narrowband color images. Show all posts

Saturday, January 4, 2025

New photo of NGC 281


This photo is made by combining 10 h of new H-alpha exposures to a 10 h of exposures with my older long focal length telescope from 2015. Beside that, there are 5 hours of data taken with Tokina AT-x 300mm f2.8 camera lens back in 2020. Very dim background mist comes mainly from camera lens data.
With 3 h S-II and O-III exposures the total exposure time was 31 hours.

Deep view to the NGC 281
Click for a full size, 2700x2500 pixels

A mapped color image from a light emitted by an ionized elements, 
sulfur=red, hydrogen=green and oxygen=blue




A Portion of the Full Resolution Photo

I haven't noticed before that there is a triple star system at the star cluster IC 1590
The seeing wasn't very good so I couldn't quite split the two of the stars but it can be seen, that there are two stars very close to each other visually.





NGC 281 in visual palette
Click for a full size, 2700x2500 pixels

Visual color version of Sh2-115 glows mostly in red from a light emitted by an ionized elements,
sulfur=red, hydrogen=red and oxygen=blue, this combination is very close to a natural color palette.



SIAMESE FIGHTING FISH NEBULA

When I was processing the data for this photo I had a feeling that I have seen this shape and color combination before, soon it hit me, it was a picture of Siamese Fighting Fish 

INFO

NGC 281 is a busy workshop of star formation. Prominent features include a small open cluster of stars, a diffuse red-glowing emission nebula, large lanes of obscuring gas and dust, and dense knots of dust and gas in which stars may still be forming. The open cluster of stars IC 1590 visible around the center has formed only in the last few million years. The brightest member of this cluster is actually a multiple-star system shining light that helps ionize the nebula's gas, causing the red glow visible throughout. The lanes of dust visible below the center are likely homes of future star formation. Particularly striking in the above photograph are the dark Bok globules visible against the bright nebula. Stars are surely forming there right now. The entire NGC 281 system lies about 10 thousand light years distant. (Source, NASA APOD)

With my new imaging system I can get deeper with a good resolution, than my old long focal length toolset was able to. The secondary mirror focusing system takes care of focusing and temperature compensation, I can keep the heavy main mirror locked down all the time.  Heavy mirror has a tendency to move a bit when the scope moves and that can mess up the collimation. 
The current system keeps collimation perfect all the time.

An other great accessory is the Active Optics Unit from Starlight Xpress. It's as easy to use as any OAG, the good update speed to a 11 mag star is around 8Hz. The AO-unit removes all the minor tracking errors very fast. The Mesu Mount Mark II has a periodic error under four arcseconds and that's a very small error, even so, AO unit gives a better image quality since the corrections are made by moving a light weight piece of glass, the heavy load of the scope and accessories doesn't need to move for corrections.

Structure study of the NGC 281

Pillar like formations in the gas cloud are forming when the radiation pressure (Solar Wind) from the open cluster IC 1590 blows the gas and dust away and  coursing some parts of the gas collapse.Due to that, they all are pointing to the source of the solar wind, open cluster IC 1590, as I have shown in the image above.


NGC 281 in a large context
Please, click for a large image

NGC 281 can be seen in this wide field mosaic image of the constellation Cassiopeia at bottom center.
This photo is also a small part of a massive mosaic image of the Northern Milky Way Galaxy.


Technical details

Processing workflow

Image acquisition, MaximDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics, 
Celestron EDGE 14" with 0.7 Focal reducer

Mount, 
MesuMount Mark II

Cameras, 
Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz

filters, 
Astrodon 5nm H-alpha, 3nm S-II and 3nm O-III

Total exposure time 31h
H-alpha, 30 x 1200 s, binned 1x1 = 10 h (14" Celestron EDGE)
H-alpha, 30 x 1200 s, binned 1x1 = 10 h (11" Celestron EDGE, shot at 2015)
H-alpha, 15 x 1200 x, binned 1x1 = 5h (Tokina AT-x 300mm f2.8, shot at 2020)
O-III,9x 1200 s, binned 2x2 = 3h (11" Celestron EDGE, shot at 2015)
S-II, 9 x 1200 s. binned 2x2 = 3h (11" Celestron EDGE, shot at 2015)


A single calibrated 20 min exposure of 
H-alpha, Bin 1x1
 Click for a full size image.



Saturday, December 21, 2024

Sharpless 132, A Furious Cosmic Horse Gets Blinded by a Divine Blue Light

 This is one of my favorite targets in Cepheus, Sh2-132 has an interesting structures due to massive energetic stars in it. I haven't found any explanation to the blue, jet like, structure glowing blue light of ionized Oxygen (O-III), the structure is visible also in H-alpha light.

When I shot firs photos out of this distant object about twenty years ago, I gave a longish name to it, "A Furious Cosmic Horse Gets Blinded by a Divine Blue Light" I don't usually name my photos but with some of them I simply must do so.

This is a kind of high resolution photo taken with my new imaging platform, it covers about 0.7 x0.7 degrees of sky. (Full Moon has an apparent diameter 0,5 degrees) Seeing was very good to my location, FWHM about 1.6 arcseconds, that's rare up here. 


Sharpless 132
A Furious Cosmic Horse Gets Blinded by a Divine Blue Light

A mapped color image from a light emitted by an ionized elements, 
sulfur=red, hydrogen=green and oxygen=blue




100% Enlarged Portion of the Full Resolution Photo
Click for a full size, 2000x2000 pixels






The Horse, as I see it

I borrowed a horse from the Piazza Navona Roma, it was a furious enough



INFO
 
Sharpless 132 (Sh2-132) is powered by two massive stars, each with a mass over 20 times greater than our Sun. Formed from shells of ionized gas that have expanded, the nebula's energetic matter not only glows, but is dense enough to contract gravitationally and form stars. The angular size of the Lion Nebula, officially named Sh2-132, is slightly greater than that of the full moon. The gaseous iconic region resides about 10,000 light years away in a constellation named after the King of Aethopia in Greek mythology.



Sharpless 132 in visual colors
Click for a full size photo, 2500x2500

Visual color version of Sh2-115 glows mostly in red from a light emitted by an ionized elements,
sulfur=red, hydrogen=red and oxygen=blue, this combination is very close to a natural color palette.



Sh2-132 in a large context
Please, click for a large image

Sharpless 132 is marked with a white rectangle at center right



Technical details

Processing workflow

Image acquisition, MaximDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics, 
Celestron EDGE 14" with 0.7 Focal reducer

Mount, 
MesuMount Mark II

Cameras, 
Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz

filters, 
Astrodon 5nm H-alpha, 3nm S-II and 3nm O-III

Total exposure time 11h
H-alpha, 15 x 1200 s, binned 1x1 = 5 h
O-III,9x 1200 s, binned 2x2 = 3h 
S-II, 9 x 1200 s. binned 2x2 = 3h






A single calibrated 20 min exposure of 
H-alpha, Bin 1x1
 Click for a full size image.





Sunday, December 15, 2024

New Photo, Sharpless 115 in Cygnus

This Portion of sky covers less than a square degrees of sky in Constellation Cygnus, the Swan.
This star nursery has always looked to me like like it was cut out of the Baroque painting.

I was able to shoot a high resolution data for it with my new imaging setup. The Celestron Edge 14". This telescope has a beautiful optics and with a secondary mirror focuser, it'll hold the collimation perfectly all the time. Normally the heavy main mirror is used for focusing and it can be source of optical problems when it moves due to gravity when the scope is moving and pointing to a different portions of sky.


BAROQUE SKY OF SHARPLESS 115
Click for a full size photo, 2000x2000 pixels

A mapped color image from a light emitted by an ionized elements, 
sulfur=red, hydrogen=green and oxygen=blue



200% Enlarged Portion of the Full Resolution Photo
Click for a full size, 2000x2000 pixels




INFO

 Sharpless 115 stands just north and west of Deneb, the alpha star of Cygnus, the Swan, in planet Earth's skies. Noted in the 1959 catalog by astronomer Stewart Sharpless (as Sh2-115) the faint but lovely emission nebula lies along the edge of one of the outer Milky Way's giant molecular clouds, about 7,500 light-years away.

Shining with the light of ionized atoms of hydrogen, sulfur, and oxygen in this Hubble palette color composite image, the nebular glow is powered by hot stars in star cluster Berkeley 90. The cluster stars are likely only 100 million years old or so and are still embedded in Sharpless 115. But the stars' strong winds and radiation have cleared away much of their dusty, natal cloud. At the emission nebula's estimated distance, this cosmic close-up spans just under 100 light-years.

Source: NASA APOD

Sharpless 115 in visual colors
Click for a full size photo, 2000x2000 pixels

Visual color version of Sh2-115 glows mostly in red from a light emitted by an ionized elements,
sulfur=red, hydrogen=red and oxygen=blue, this combination is very close to a natural color palette.




Sh2-115 in a large context
Please, click for a large image, NOTE. 4000x5000 pixels

Sharpless 155 is marked with a white rectangle at lower left.
This is my very large mosaic photo of the whole Cygnus, more info about this massive photo


Technical details

Processing workflow

Image acquisition, MaximDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics, 
Celestron EDGE 14" with 0.7 Focal reducer

Mount, 
MesuMount Mark II

Cameras, 
Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz

filters, 
Astrodon 5nm H-alpha, 3nm S-II and 3nm O-III

Total exposure time 12h
H-alpha, 18 x 1200 s, binned 1x1 = 6 h
O-III,9x 1200 s, binned 2x2 = 3h 
S-II, 9 x 1200 s. binned 2x2 = 3h


A single calibrated 20 min exposure of H-alpha, Bin 1x1
 Click for a full size image.






Monday, December 9, 2024

Wizard Nebula, NGC 7380

 My new setup has a long focal length optics, Celestron EDGE 14", after years of shooting the wider field astronomical photos, it's very nice to dig in to the details of those cosmic wonders.

My new photo shows the Wizard nebula in Cepheus, I have shot this target many times with a various optical configurations. The combination of 14" telescope and large 12 micron pixels of my "new" second hand camera, Apogee Alta U9000M, delivers an optimal resolution to my seeing conditions (0.91 arcsecond/pixel). This makes possible to go very deep in relatively short cumulative exposure time, as can be seen in this photo. A dim background nebulosity stand out nicely after about six hours of H-alpha exposures. 

WIZARD OF CEPHEUS
Click for a full size photo, 2000x2000 pixels

A mapped color image from a light emitted by an ionized elements, 
sulfur=red, hydrogen=green and oxygen=blue



The Wizard, as I see it
Click for a full size photo, 2000x2000 pixels



INFO

NGC 7380, the Wizard Nebula, locates in constellation Cepheus at distance of about 8500 light years from us. The Nebula surrounds an open star cluster NGC 7380. Stars, gas, and dust has created a shape that appears to some like a fictional medieval sorcerer. The active star forming region spans about 100 light years, making it appear larger than the angular extent of the Moon. The Wizard Nebula can be located with a small telescope toward the constellation of the King of Aethiopia (Cepheus). 



WIZARD IN VISUAL COLORS
Click for a full size photo, 2000x2000 pixels

Visual color version from a light emitted by an ionized elements,
sulfur=red, hydrogen=red and oxygen=blue, this combination is very close to a natural color palette.




200% Enlarged Portion of the Full Resolution Photo
Click for a full size, 2000x2000 pixels



Technical details

Processing workflow

Image acquisition, MaximDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics, 
Celestron EDGE 14" with 0.7 Focal reducer

Mount, 
MesuMount Mark II

Cameras, 
Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz

filters, 
Astrodon 5nm H-alpha, 3nm S-II and 3nm O-III

Total exposure time 12h
H-alpha, 18 x 1200 s, binned 1x1 = 6 h
O-III,9x 1200 s, binned 2x2 = 3h 
S-II, 9 x 1200 s. binned 2x2 = 3h

A single, full scale, 20 min H-alpha exposure, Bin 1x1
 Click for a full size image.








Thursday, November 28, 2024

Beauty and the Beast, Tulip Nebula and a Black Hole

I started to collect exposures for this photo back in 2014, now I have shot new high resolution material for this amazing target with my new imaging platform. 

I see several layers in my photos and that makes them to tell a story beyond any imagination.

First

A visual layer, that's naturally very important to me as a visual artist, revealing the hidden cosmic beauty and poetry is my passion.

Second 

The physical layer, how emission of the nebulae works, radiation pressure, nuclear fusion of the star, gravitational phenomes, etc... all that is extremely beautiful in its own class.

Third 

An existential layer, where we are coming and where we are going in a cosmic scale.
Practically all of the heavier elements in our bodies are coming from supernova explosion's, iron in our blood, oxygen, carbon, etc... We are children of the stars
When our Sun will die after few billion years and turn to a planetary nebula, it'll vaporize the Earth and our remains on it and blows them to the outer space. After aeons our remains are going to end up to a building blocks for a new generation of stars.
We all have been stars and one day we going to be stars again.

This is the beauty and poetry I'm after my photos


BEAUTY AND THE BEAST

Tulip Nebula and a Black Hole 
Click the photo to see a high resolution photo, it's worth it 

A two frame mosaic from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue


One frame



Black Hole, Cygnus X-1, in a Close Up of the Full Resolution Photo
Click the photo to see a high resolution photo, it's worth it 


Black Hole, Cygnus X-1, is marked in the photo



INFO

The complex and beautiful Tulip Nebula, Sharpless 101,  blossoms about 8,000 light-years away toward the constellation of Cygnus the Swan. Ultraviolet radiation from young energetic stars ionizes the atoms and powers the emission from the Tulip Nebula.  

Also in the featured field of view is the black hole Cygnus X-1, which is also a microquasar because it is one of strongest X-ray sources in planet Earth's sky. The powerful jets from the black hole can't be seen in this photo since they glow light in X-ray wave length. Faint bluish curved shock front, visible at up center, is coursed by the X-ray jet when it hits to a interstellar gas and dust. 

Why we can see the black hole in this image as a star like object?

We can't see the actual black hole but we can see how the material is twirling in the black hole. The speed become so high that the matter starts to turn to an energy emitting light trough the whole spectrum up to X-ray and gamma radiation. 


Photo in Visual Colors
Click the photo to see a high resolution photo, it's worth it 

A two frame mosaic from a light emitted by an ionized elements,
sulfur=red, hydrogen=red and oxygen=blue

Technical details

Processing workflow

Image acquisition, MaximDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics, Celestron EDGE 14" with 0.7 Focal reducer

Mount, MesuMount Mark II

Cameras, Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz

filters, Astrodon 5nm H-alpha, 3nm S-II and 3nm O-III

Total exposure time 20h
H-alpha, 15 x 1200 s, binned 1x1 = 10 h
O-III, 45x 1200 s, binned 1x1 = 5 h 
S-II, 9 x 1200 s. binned 2x2 = 5h


A single, full scale, 20 min H-alpha exposure, Bin 1x1
 Click for a full scale image.



A single, full scale, 20 min S-III exposure, Bin 2x2
 Click for a full scale image.



A single, full scale, 20 min O-III exposure, Bin 1x1
 Click for a full scale image.







Tuesday, October 29, 2024

Methuselah Nebula, MWP1, project finalized

Planetary Nebulae are like candy of the cosmos, small and colorful treats to the eye.
MWP1 is a Planetary Nebula in constellation Cygnus, the Swan, it's rarely imaged and now I know why.

This is a unusually old, unusually shaped and unusually large planetary nebula, it also was one of the most difficult targets I have captured so far.

When I saw the first  20 min. exposure, it looked like there is plenty of nothing in the frame, this is dim to an extreme.  I have added full size 20 min sub frames of H-alpha and O-III at the end of this blog post so you can see yourself how much data there is. 


MWP1, Methuselah Nebula
Click for a full size image

Photo is in natural color palette from the light emitted by an ionized hydrogen (H-alpha) 
and an ionized oxygen (O-III)


200% Enlarged Portion of the Full Resolution Photo
Click for a full size, 2000x2000 pixels





MWP1 in O-III light only
Click for a full size image

The structure of MWP1 in light of an ionized oxygen (O-III)



INFO

More or less symmetric planetary nebula cataloged as MWP1 lies some 4,500 light-years away in the northern constellation Cygnus the Swan. 

This is one of the largest planetary nebulae known, it spans about 15 light-years. Based on its expansion rate the nebula has an age of 150 thousand years, a cosmic blink of an eye in the 10 billion year life of a sun-like star. But planetary nebulae represent a very brief final phase in stellar evolution, as the nebula's central star shrugs off its outer layers to become a hot white dwarf. In fact, planetary nebulae ordinarily only last for 10 to 20 thousand years. 

The central star of the nebula is on of the hottest stars known. It's so hot that it's producing large amounts of X-rays

Source NASA APOD


Scale in the Sky

The white circle show the apparent size of the Moon in the same scale, this is a large object as a Planetary nebula. Moon has a angular dimension of 30 arcminutes, that's 0.5 degrees. 




Animation

I made this small animation to show the difference between two emission lines, H-a and O-III



Technical details

Processing workflow

Image acquisition, MaximDL
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2, Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics, Celestron EDGE 14" with 0.7 Focal reducer

Mount, MesuMount Mark II

Cameras, Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz

filters, Astrodon 5nm H-alpha and 3nm O-III

Total exposure time 24h
H-alpha, 21 x 1200 s, binned 1x1 = 8 h
O-III, 48x 1200 s, binned 1x1 = 16h 



A single, full size, 20 min H-alpha and O-III exposure
 Click for a full scale image.

Both images below are jpg photos of a single full size, 20 min. FIT-format 16 bit image. 
Photos are calibrated with darks and bias corrected flats and are heavily stretched to show even a hint of the actual nebula.

H-alpha




O-III








Wednesday, December 21, 2022

Milky Way, 12 years, 1250 hours of exposures and 125 x 22 degrees of sky



It took nearly twelve years to collect enough data for this high resolution gigapixel class mosaic image of the Milky Way.  Total exposure time used is around 1250 hours between 2009 and 2021.


" I can hear music in this composition, from the high sounds of sparcs and bubbles at left  all the way to a deep and massive sounds at right."


The final photo is about 100 000 pixels wide, it has 234 individual mosaic panels stitched together and 1,7 gigapixels. (Click for a large image) All the frames used are marked in this image. Since many of sub-images and mosaics are independent artworks it leads to a very complex mosaic structure. 


From Taurus to Cygnus
Click for a large image, it's really worth it! (7000 x 1300 pixels)

Image in mapped colors from the light emitted by an ionized elements, hydrogen = green, sulfur = red and oxygen = blue. NOTE, the apparent size of the Moon in a lower left corner. NOTE 2, there are two 1:1 scale enlargements from the full size original at both ends of the image

NEW, A HD-video from Germany shows my photo in full glory

https://www.youtube.com/watch?v=D-Z60eZ4yqM
(Video in Germany but images are the international language)


Close ups form the parts of the Grande Mosaic
Taurus side of the mosaic, https://astroanarchy.blogspot.com/2021/02/a-new-mosaic-image-from-taurus-to.html



A closeup from large panorama to show the overall resolution
Click for a large image

The California Nebula, NGC 1499, can be seen at bottom left of the large mosaic image.
There are about 20 million individual stars visible in the whole mosaic image.



Orientation and details
Click for a large image








Imaging info

Image spans 125 x 22 degrees of  the Milky About 20 million individual stars are visible in my photo!

It took almost twelve years to finalize this mosaic image. The reason for a long time period is naturally the size of the mosaic and the fact, that image is very deep. Another reason is that I have soht most of the mosaic frames as an individual compositions and publish them as independent artworks. That leads to a kind of complex image set witch is partly overlapping with a lots of unimaged areas between and around frames. I have shot the missing data now and then during the years and last year I was able to publish many sub mosaic images as I got them ready first.

My processing workflow is very constant so very little tweaking was needed between the mosaic frames. Total exposure time is over 1250 hours. Some of the frames has more exposure time, than others. There are some extremely dim objects clearly visible in this composition, like a extremely dim supernova remnant W63, the Cygnus Shell. It lays about six degrees up from North America nebula and it can be seen as a pale blue ring. I spent about 100 hours for this SNR alone. An other large and faint supernova remnant in Cygnus can be seen at near right edge of the image. G65.5+5.7 is as large as more famous Veil nebula. There are over 60 exposure hours for this SNR alone.  (Veil SNR is just outside of the mosaic area for compositional reasons but can be seen in "Detail" image above.) 


The Mosaic Work, technical info

I have used several optical configurations for this mosaic image during the years. Up to 2014 I was using an old Meade LX200 GPS 12" scope, QHY9 astrocam, Canon EF 200mm f1.8 camera optics and baader narrowband filter set. After 2014 I have had 10-micron 1000 equatorial mount, Apogee Alta U16 astro camera, Tokina AT-x 200mm f2.8 camera lens and the Astrodon 50mm square narrowband filter set. I have shot many details with a longer focal length, before 2014 by using Meade 12" scope with reducer and after 2014 Celestron EDGE 11" and reducer. Quider camera has been Lodestar and Lodestar II.

I took my current toolset as a base tool since it has a relatively high resolution combined to a very large field of view. Also it collects photons very quickly since it's undersampled and I can have very dim background nebulosity visible in very short time (many times 30 min frame is enough)

I do all my mosaic work under the PhotoShop, Matching the separate panels by using stars as an indicator is kind of straight forward work. My processing has become so constant, that very little tweaking is needed between separate frames, just some minor levels, curves and color balance. 

I have used lots of longer focal length sub-frames in my mosaic to boost details. (See the mosaic map at top of the page) To match them with shorter focal length shots I developed a new method.

Firstly I upscale the short focal length frames about 25% to have more room for high resolution images.Then I match the high res photo to a mosaic by using the stars as an indicator. After that I remove all the tiny stars from the high res image. Next I separate stars from low res photo and merge the starless high res data to a starless low res frame. And finally I place the removed low res stars back at top of everything with zero data lost. Usually there are some optical distortions and it's seen especially in a star field. Now all my stars are coming from a same optical setup and I don't have any problems with distortions. (I'm using the same star removal technique as in my Tone Mapping Workflow)



Closeups from large panorama to show the overall resolution
Click for a large image

Image in mapped colors from the light emitted by an ionized elements, hydrogen = green, sulfur = red and oxygen = blue. 

A 1:3 resolution close up from the photo above
Click for a large image,

A closeup from the main image shows the Sharpless 124 at up and the Cocoon nebula with a dark gas stream at bottom.

From Bubble to Cave Nebula
Image info, https://astroanarchy.blogspot.com/2020/03/from-bubble-to-cave-nebula-area.html

The tulip nebula area
The Tulip Nebula, Sh2-101, can be seen at center right, there is also a black hole Cygnus X-1
The blog post with technical details can be seen here, 
https://astroanarchy.blogspot.com/2020/10/the-tulip-nebula-in-cygnus-sh2-101.html

The supernova remnant G65.3+5.7

My Observatory,


Not an igloo, this is reality of astro photographing in Finland