Showing posts with label EDGE 14". Show all posts
Showing posts with label EDGE 14". Show all posts
Friday, October 24, 2025
ICARUS, the final flight
My latest photo shows a small portion of the Veil Nebula supernova remnant in Cygnus. I have wanted to photograph this tiny, knot-like object for a long time, making it the main character of the composition. I couldn’t find any catalog number for this object — if someone knows it, please drop a comment and I’ll add it here.
After I stacked all the data and saw the full-resolution image for the first time, I had the strange feeling that I had seen this composition before. A moment later I realised what it reminded me of — an old painting of Icarus from Greek mythology.
ICARUS
Click for a large image, 1600 x 2000 pixels
This is how I saw it in my head
ICARUS, orientation in the Veil Nebula
Click for a large image, 2000 x 2500 pixels
The Veil Nebula supernova remnant in constellation Cygnus.
The area of interest is marked as a white rectangle
Click for a large image, 1600 x 2000 pixels
A mapped color image from a light emitted by an ionized elements, sulfur=red, hydrogen=green and oxygen=blue. The resolution of the photo is reduced for the web usage.
This is how I saw it in my head
ICARUS, a full scale closeup
Click for a large image, 1600 x 2000 pixels
Click for a large image, 1600 x 2000 pixels
Click for a large image, 2000 x 2500 pixels
The area of interest is marked as a white rectangle
Technical details
Processing workflow
Image acquisition, MaximDL v6.5
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS
Levels and curves in PS
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 9h
H-alpha, 9 x 1200 s, binned 1x1 = 3 h
O-III, 9x 1200 s, binned 1x1 = 3h
O-III, 9x 1200 s, binned 1x1 = 3h
S-II, 9x 1200 s. binned 1x1 = 3h
Tuesday, October 14, 2025
Western Veil nebula, the Witch's Broom
This is my first-light image for the autumn season 2025.
I collected a total of 34 hours of exposure time over a period of about two months for this two-frame mosaic. The seeing conditions were relatively good for my location, with FWHM values ranging between 1.6 and 2.5 throughout the sessions.
Witch's Broom Nebula
Click for a large image, 3500 x 1800 pixels
A full resolution closeup in
Click for a large image, 3500 x 1800 pixels
Witch's Broom Nebula, O-III emission alone
Click for a large image, 3500 x 1800 pixels
Click for a large image, 3500 x 1800 pixels
The emission from H-alpha and S-II are seen as red, blueish tones are from an emission of ionized oxygen, O-III. This combination is very close to a visual colors of the nebula.Orientation
The area of interest is marked as a white rectangle
Technical details
Processing workflow
Image acquisition, MaximDL v6.5
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS
Levels and curves in PS
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 34h
H-alpha, 72 x 1200 s, binned 1x1 = 13 h
O-III, 6x 1200 s, binned 1x1 = 13
O-III, 6x 1200 s, binned 1x1 = 13
S-II, 6 x 1200 s. binned 1x1 = 8h
Tuesday, April 8, 2025
A two Frame Panorama of IC 1805, the Heart Nebula
I just published an image of the unnamed pillar-like formation inside the Heart Nebula.
I've created a two-frame mosaic from the new photo, showing its relation to Melotte 15 at the center of the Heart Nebula.
As is usually the case, these pillar-like formations point toward the source of ionization. When radiation pressure (solar wind) push gas and dust away from a newborn star cluster, denser regions of gas can resist this force and begin to collapse. This process leads to the formation of the pillar-like structures. The tips of these pillars can become the birthplace of a second generation of stars within the nebula.
A Hidden Pillar and Melotte 15 in IC 1805, the Heart Nebula
Click for a large image, 3000 x 1700 pixels.
A mapped color image from a light emitted by an ionized elements, sulfur=red, hydrogen=green and oxygen=blue. Original resolution 12.000 x 6500 pixels
Area in Large Content
Click for a large image, 2500 x 3200 pixels.
Photos used for this panorama
Melotte 15
Technical Details and other info can be seen in this blog post
Unnamed Pillar Formation
Technical Details and other info can be seen in this blog post
Strange Pillar like Formation in IC 1805, The Heart Nebula
This is an object in the Heart Nebula that I have captured from time to time. My previous photo was taken in 2012.
This new photo reveals more details, even though the exposure time for H-alpha light was only 5 hours.
The pillar-like formations are typically pointing toward a source of ionization, in this case, the more famous Melotte 15.
I haven't been able to find a name for this beautiful object
A Hidden Pillar in IC 1805, the Heart Nebula
Click for a large image, 2000 x 2000 pixels.
A mapped color image from a light emitted by an ionized elements, sulfur=red, hydrogen=green and oxygen=blue. Original resolution 6500 x 6500 pixelsA close up
Click for a full size detail, 1600 x 1600 pixels.
Orientation in IC 1805
Click for a large image, 2000 x 2500 pixels.
Technical details
Processing workflow
Image acquisition, MaximDL v6.5
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS
Levels and curves in PS
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 9h
H-alpha, 15 x 1200 s, binned 1x1 = 5 h
O-III, 6x 1200 s, binned 2x2 = 2h
O-III, 6x 1200 s, binned 2x2 = 2h
S-II, 6 x 1200 s. binned 2x2 = 2h
Wednesday, March 26, 2025
Soul Nebula, IC1848
Detail of my Soul
Click for a large image, 2000 x 2000 pixels
Click for a large image, 2000 x 2000 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
A Closeup
Click for a large image, 2000 x 2300 pixels
Click for a large image, 2000 x 2300 pixels
Soul nebula from 2014
A wide field mosaic image of the Milky Way
Click for a large image, 4600 x 2000 pixels
Hearth and Soul Nebulae at upper right corner
Click for a large image, 4600 x 2000 pixels
INFO
Soul Nebula, (Sh2-199, LBN 667) is an emission nebula in constellation Cassiopeia. IC 1848 is a cluster inside Soul Nebula. Distance is about 7.500 light years. This complex is a Eastern neighbor of IC 1805, the "Heart Nebula" and they are often mentioned together as Heart and Soul.
An alternative framing
Click for a large image, 2000 x 1600 pixels
Technical details
Processing workflow
Image acquisition, MaximDL v6.5
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS
Levels and curves in PS
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, 24 x 1200 s, binned 1x1 = 8 h
O-III, 6x 1200 s, binned 2x2 = 2h
O-III, 6x 1200 s, binned 2x2 = 2h
S-II, 6 x 1200 s. binned 2x2 = 2h
Monday, March 24, 2025
Melotte 15 in heart nebula, IC 1805
I shot material for this new photo back in February, 10 hours of exposures total for three narrowband color channels. (H-alpha, O-III and S-II)
MELOTTE 15
Click for a large image, 2000 x 2000 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
A Closeup
Click for a large image, 2000 x 2000 pixels
Click for a large image, 2000 x 2000 pixels
Melotte 15 in the Heart Nebula
Click for a large image, 2500 x 3200 pixels
Click for a large image, 2500 x 3200 pixels
A very large high resolution mosaic photo of IC 1805
Technical details
Processing workflow
Image acquisition, MaximDL v6.5
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS
Levels and curves in PS
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 10h
H-alpha, 18 x 1200 s, binned 1x1 = 6 h
O-III, 6x 1200 s, binned 2x2 = 2h
O-III, 6x 1200 s, binned 2x2 = 2h
S-II, 6 x 1200 s. binned 2x2 = 2h
Monday, March 17, 2025
HFG1, a Planetary Nebula in Cassiopeia
I managed to get 17 hours of H-alpha light for the HFG1 and now I'm able to do color photo out of it.
This is a difficult target, very diffused and large, I tried to keep my processing kind of modest to bring out delectate nature of an old and dim planetary Nebula.
Total exposure time is 37 hours and signal wasn't the best possible but I'm happy with this result.
HFG1 (Heckathorn-Fesen-Gull 1)
Click for a large image, 2000x2000 pixels
A bicolor image, the light from an ionized oxygen, O-III can be seen as blueish hues, light from an ionized hydrogen, H-alpha, emits deep red light.
Closeup
HFG1 in O-III light only
Click for a large image, 2000x2000 pixels
HFG1 in the light emitted by an ionized oxygen, O-III
INFO
Planetary nebulae have nothing to do with planets. The name of planetary nebulae originated in the 18th century due to the visual similarity between some circular planetary nebulae and the planets Uranus and Neptune when viewed through small optical telescopes, the name has remained although they are not planets.
HFG1 was created by the central star V664 Cas. This is not a single star, but a dense binary star system consisting of a white dwarf and a sun-like star, which are only a few million kilometers apart and orbit every 14 hours.
Because the binary system V664 Cas moves very fast at 29 to 59 kilometers per second and ploughs through the interstellar medium together with the nebula, a bluish arc shock occurs. HFG1 leaves behind a long, red trace of approx. 10,000 year old gas.
Technical details
Processing workflow
Image acquisition, MaximDL 6.5
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PotoShop
Levels and curves in PotoShop.
Imaging optics,
Celestron EDGE 14" with 0.7 Focal reducer
Mount,
Mesu Mount 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
O-III, 60 x 1200 s = 20h
H-alpha, 51 x 1200 s = 17h
H-alpha, 51 x 1200 s = 17h
Saturday, March 8, 2025
NGC 281, a New Revision
I made a new composition out of my new NGC 281 material, the original composition and technical details can be seen here: https://astroanarchy.blogspot.com/2025/01/new-photo-of-ngc-281.html
This new poster format composition brings out the dynamic nature of this target better.
NGC 281
Click for a large image, 2000x2600 pixels
Click for a large image, 2000x2600 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
A Closeup
Thursday, March 6, 2025
A Very Deep View to my Soul, IC1848
This is a new photo of the Soul Nebula in Cassiopeia.
A total of 20 hours of H-alpha exposure, along with 6 hours of S-II and O-III combined, allows me to capture intricate details of this relatively bright astronomical cloud of gas and dust.
A Detail of IC1848, the Soul Nebula
Click for a large image, 2100x2300 pixels
Click for a large image, 2100x2300 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
sulfur=red, hydrogen=green and oxygen=blue
Full Resolution Details
Click for a full size, 2100x2300 pixels
Click for a full size, 2100x2300 pixels
Pillar like formations are pointing to a open cluster IC1848
Older photos of the Soul Nebula
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
Levels and curves in PS
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 30h
H-alpha, 60 x 1200 s, binned 1x1 = 20 h
O-III,21x 1200 s, binned 2x2 = 3h
O-III,21x 1200 s, binned 2x2 = 3h
S-II, 15 x 1200 s. binned 2x2 = 3h
A single calibrated 20 min exposure of H-alpha, Bin 1x1
Click for a full size image.
Tuesday, March 4, 2025
HFG1, a Challenging Planetary in Cassiopeia
I have planning to shoot this dim, diffused and large planetary nebula for a long time. The imaging season up here 65N is over in few weeks since we'll loose astronomical darkness for six months due to high latitude.
So far I have collected about 20 hours of exposures of light emitted by a triple ionized oxygen, O-III
I think it's very beautiful as it now but I'll add H-alpha light when ever weather allows.
HFG1
Click for a large image, 2000x2000 pixels
HFG1 in O-III light only
Technical details
Processing workflow
Image acquisition, MaximDL 6
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PotoShop
Levels and curves in PotoShop.
Imaging optics,
Celestron EDGE 14" with 0.7 Focal reducer
Mount,
Mesu Mount 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
O-III, 60 x 1200 s = 20h
Wednesday, January 29, 2025
A Cosmic genesis, IC 410 in Auriga
UPDATE
My photo of IC410 ended up to the PetaPixel, world's leading independent photography publication.
This must be one of my best photos of IC410 so far, and I'm very pleased with the result.
I’ve been shooting this target over and over again for decades, and every time it has shown me something new. (There are links to older versions of IC410 at the end of this blog post.)
This has been a fascinating object for me, as it holds great symbolism. Overall, this nebula resembles a microscopic photo of human fertilization, where new life is about to be born, and the germ cells are meeting each other.
New things are being born in this photo as well, but not life as we know it. At the tips of those tadpole-like formations, the gas is collapsing, and new stars are beginning to form. For scale, those tadpoles are about ten light-years long and located about 10.000 light-years away from us.
In fact, they are the second generation of stars in this nebula. The first group was the open cluster of stars at the center of the image, NGC 1893. This group of stars is also responsible for the appearance of the entire nebula complex. The radiation pressure from the stars shapes the gas and causes it to glow by ionizing the elements within it. This same radiation pressure also causes the gas to collapse, starting the process of second-generation star formation in the nebula.
The seeing was very good in my conditions, with an FWHM of 1.6 (typically it's between 2.2 - 3.0). The total exposure time is around 30 hours, collected over several nights during a three-month period between the end of 2024 and the beginning of 2025
A Cosmic Genesis, IC 410
Click for a full size, 2700x2400 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
sulfur=red, hydrogen=green and oxygen=blue
A Full Resolution Detail
Click for a full size, 2100x2100 pixels
Click for a full size, 2100x2100 pixels
Tadpole like formations are ten light years long and locates 10.000 light years from us.
New stars are forming in the tips of them since the gravity gets the gas and dust collapsing. When the pressure and heat are high enough, nuclear fusion of lighter elements is able start , the new star is born.
IC 410 in Visual Colors
Click for a full size, 2400x2400 pixels
sulfur=red, hydrogen=red and oxygen=blue, this combination is very close to a natural color palette
IC 410 in a Large Context
A massive mosaic Photo of Auriga
The area of the new photo is marked as a white rectangle
Click for a full size, 2900x1600 pixels
Click for a full size, 2900x1600 pixels
Info about this massive photo can be seen in this Blog post:
https://astroanarchy.blogspot.com/2020/03/the-grande-mosaic-of-auriga.html
A little Closer
Click for a full size, 2400x2400 pixels
Info about this massive photo can be seen in this Blog post:
https://astroanarchy.blogspot.com/2020/03/new-photo-deep-in-to-darkness.html
INFO
This cosmic view shows off an otherwise faint emission nebula IC 410, captured with 14" telescope and narrowband filters. Above and right of center you can spot two remarkable inhabitants of the interstellar pond of gas and dust, known as the tadpoles of IC 410. Partly obscured by foreground dust, the nebula itself surrounds NGC 1893, a young galactic cluster of stars. Formed in the interstellar cloud a mere 4 million years ago, the intensely hot, bright cluster stars energize the glowing gas. Globules composed of denser cooler gas and dust, the tadpoles are around 10 light-years long and are likely sites of ongoing star formation. Sculpted by stellar winds and radiation their heads are outlined by bright ridges of ionized gas while their tails trail away from the cluster's central young stars. IC 410 and embedded NGC 1893 lie some 10,000 light-years away, toward the nebula-rich constellation Auriga.
Source; NASA APOD
My older photos of the IC 410 in Chronological Order
2008, my first photo of IC 410, https://astroanarchy.blogspot.com/2008/03/ic-405-410-with-color.html
2008, my second tryout with IC 410, https://astroanarchy.blogspot.com/2008/11/ic405-ic410-in-hst-hubble-space.html
2010, version, https://astroanarchy.blogspot.com/2010/01/ic-410-cosmic-fertilization.html
2012, version, https://astroanarchy.blogspot.com/2012/12/a-cosmic-fertilization.html
2015 version, https://astroanarchy.blogspot.com/2015/02/new-photo-ic-410-in-auriga.html
2015, 3D studies of IC410, https://astroanarchy.blogspot.com/2015/07/an-experimental-3d-study-of-emission_28.html
2020, a wide field mosaic, https://astroanarchy.blogspot.com/2020/03/new-photo-deep-in-to-darkness.html
2020, IC 410 as apart of an interesting mosaic version, https://astroanarchy.blogspot.com/2020/03/the-birth-of-venus.html
IC 410, a Photo from 2012 vs 2025 Version of it
Click for a full size, 1500x1500 pixels
I noticed some movement in a one star, it's marked at upper right
There are other small movement at stars but it's just due to a different optical curvatures between two optical configurations.
The details in the tadpoles are much clearer in the new version, the dark nebulae now show fine structures, and the gas complex at the lower left—barely visible in the 2012 photo—now reveals beautiful details. The amount and clarity of the stars are amazing in the new version, along with many other small features that have now been captured.
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 30h
H-alpha, 60 x 1200 s, binned 1x1 = 20 h
O-III,21x 1200 s, binned 2x2 = 7h
O-III,21x 1200 s, binned 2x2 = 7h
S-II, 15 x 1200 s. binned 2x2 = 5h
A single calibrated 20 min exposure of H-alpha, Bin 1x1
Click for a full size image.
It does look like a human germ cells
Friday, January 24, 2025
Star Pointers
I have made an alternative composition out of my photo of Cederblad 214. There are several pillar like structures in the nebula and they all are pointing to the open cluster NGC 7822 due to solar wind, a radiation pressure. Original photo can be seen here with technical details: https://astroanarchy.blogspot.com/2025/01/cederbald-214.html
CEDERBLAD 214 AND THE STAR POINTERS
Click for a large image, 1600 x 2300 pixels
Cosmic fingers are pointing up to the stars
Friday, January 17, 2025
Cederbald 214
This winter season I have shot some of my old targets again with my new imaging system. It takes some time to get familiar with a new system and get everything out of them technically.
I have been really happy with the optical quality of my 142 Celestron EDGE telescope, specially with the secondary mirror focuser does the trick, no more mirror flops since main mirror is locked down all the time. Mesu mount Mark II has served well as a very solid imaging platform.
CEDERBLAD 214 AND THE STAR POINTERS
Click for a large image, 1400 x 2000 pixels
Cosmic fingers are pointing up to the stars
A FULL FRAME PHOTO OF CEDERBLAD 214
Click for a full size, 2000x2000 pixels
Click for a full size, 2000x2000 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
sulfur=red, hydrogen=green and oxygen=blue
Structure Study of the Cederblad 214
All pillar like formations are pointing to a source of ionization, the open cluster NGC 7822. There are some dense areas in a gas able to resist the radiation pressure from young star cluster. Those dense areas, at a tip of the pillars, are also potential places for the formations of the new stars.
INFO
Source: NASA APOD
Towering pillars of cold gas and dark dust adorn the center star forming region of Sharpless 171. An open cluster of stars is forming there from the gas in cold molecular clouds. As energetic light emitted by young massive stars boils away the opaque dust, the region fragments and picturesque pillars of the remnant gas and dust form and slowly evaporate. The energetic light also illuminates the surrounding hydrogen gas, causing it to glow as an emission nebula. Pictured above is the active central region of the Sharpless 171 greater emission nebula. Sharpless 171 incorporates NGC 7822 and the active region Cederblad 214, much of which is imaged above. The area above spans about 20 light years, lies about 3,000 light years away, and can be seen with a telescope toward the northern constellation of the King of Ethiopia (Cepheus).
Cederblad 214 in a large context
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 9h
H-alpha, 15 x 1200 x, binned 1x1 = 5h
O-III,9x 1200 s, binned 2x2 = 2h
S-II, 9 x 1200 s. binned 2x2 = 2h
A single calibrated 20 min exposure of H-alpha, Bin 1x1
Click for a full size image.
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