Astro Anarchy: Search results for Veil nebula

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Sunday, September 27, 2020

First light for the Autumn season 2020

First light for the season is always a big thing for me personally. I have had really bad troubles to have a imaging telescope. Lots of promises but nothing happens so i'm out of real tools. I do have a kind of working imaging platform built around an old Tokina AT-x 300mm f2.8 camera lens, here is some info about this toolset, https://astroanarchy.blogspot.com/2020/01/the-frankenstein-monster-my-current.html

I have an imaging plan but for the first light I selected something more "easy" to test my system after a six months pause due to nightless nights up here near to polar circle. A supernova remnant Veil Nebula in constellation cygnus is a beautiful and large target with some really dim parts and background nebulae.

I have shot the Veil nebula many times during the years with a different optical configurations and it's always shows something new and different, what a fascinating target!

Veil Nebula
Please, click for a large image, it's worth it

Image is in natural colors combined from the narrowband channels. H-alpha = Red, O-III = Green and O-III + 20% H-alpha = Blue.

A closeup
click for a large image

A full resolution closeup, the camera lens draws beautifully when well collimated and focused.
lots of stars there, star colors are combined from narrowband channels H-alpha and O-III.

An experimental starless image
click for a large image

The starless version of Veil Nebula makes easier to see very faint details in nebulae otherwise buried under the dense starfield of the Milky Way.

Veil nebula in a light from an ionized hydrogen, H-alpha
click for a large image

INFO

Veil Nebula locates in a constellation Cygnus at distance of about 2400 ly. It's a cloud of ionized gas and dust, leftovers from an exploded star. The star went off some 5000-8000 years ago at distance of about 1470 light years. This, relatively faint target, is difficult to image due to the large angular diameter, about three degrees, and a dense star field. I have shot this target so many times over the years and i never get tired to it, ther is always something new to find in it, Here is a collection my photos from this fascinating target, https://astroanarchy.blogspot.com/search?q=Veil+nebula
Just click "Next Post" at end of the page to see more!

Technical details

Processing workflow

Image acquisition, MaxiDL v5.07.

Stacked and calibrated in CCDStack2.

Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight

Color combine in PS CS3

Levels and curves in PS CS3.

Imaging optics

Tokina AT-x 300mm f2.8 camera lens

Mount

10-micron 1000

Cameras, filters and guiding

Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel

Guider camera, Lodestar x 2 and an old spotting scope of Meade LX200

Astrodon filters,

5nm H-alpha 3nm S-II and 3nm O-III

Total exposure time

H-alpha, 12 x 1200 s, binned 1x1 = 4 h

O-III, 6 x 1200 s, binned 1x1 = 2 h
S-II, 3 x 1200s, binned 1x1 = 1h

Sunday, January 11, 2015

Veil Nebula in light of ionized oxygen only

This must be the worst winter season ever! Last time we have had clear skies, up here 65N, was at end of the October, almost two and half months ago! Now it's cloudy, -13celsius (~8 fahrenheit) with a storming wind to a top of that. Next ten days will be no better by weather forecast. Few words comes to in my mind but I say only one, frustrated.

Veil Nebula in O-III light only

Click for the large image

This photo of the Veil Nebula supernova remnant in Cygnus shows only an emission from the ionized oxygen (O-III). All the stars are suppressed to show the actual shapes of the ionization front better.

The ionized oxygen, O-III, glows at wavelength of 500,7 nanometer. To a human eye it shows as a turquoise color.

Info

Veil Nebula is a cloud of ionized gas and dust, leftovers from an exploded star. The star exploded some 5000-8000 years ago at distance of about 1470 light years. This, relatively faint target, is difficult to image due the large angular diameter, about three degrees, and a dense star field.

Some closeup photos in emission of ionized oxygen only

IC 1340 in ionized Oxygen light, O-III

More info about this photo of mine can be see HERE

Pickering's Triangle in ionized Oxygen light, O-III

More info about this photo of mine can be see HERE

Eastern Veil in ionized Oxygen light, O-III

More info about this photo of mine can be see HERE

Witch Broom Nebula in ionized Oxygen light, O-III

More info about this photo of mine can be see HERE

The Veil Nebula in colors

This photo of the Veil nebula shows it in full colors. Colors are combined from the emission of ionized elements, hydrogen, sulfur and oxygen.(H-alpha, S-II and O-III) More info about this photo of mine can be see HERE

Saturday, November 17, 2012

Witch's Broom Nebula

Filaments in the Western Veil

Supernova remnant in Cygnus

Image is in visual spectrum, composed from H-a and O-III narrowband channels.

This is a third detail image from the Veil Nebula supernova remnant from this Autumn season.

Two others can be seen here, IC 1340 in Eastern Veil and the Pickering's Triangle.

This portion of the Veil Nebula is technically as NGC 6960 but less formally as the Witch's Broon Nebula.

The Veil Nebula locates in constellation Cygnus at distance of about 1400 light years. The angular size of the image is close to size of the full Moon. The bright star at upper right corner is 52 Cygni, it's a foreground star and unrelated to the supernova remnant.

Orientation

Area of interest is marked as a white rectangle.

Image in HST-palette
19.11.2012

I made a HST-palette version out of this. I have shot the Veil Nebula with much wider field instruments, Tokina AT-X 300 f2.8 and the Canon EF 200mm f1.8 cameraoptics. I took the color information from the wide field image and used it with this detail image. Here is the result.

Colors for this HST-palette image are borrowed from a wider field one, image can be seen here:
http://astroanarchy.blogspot.fi/2012/03/veil-nebula-reprocessed-with-some-new.html

An animated image shows the difference between ionized Oxygen and Hydrogen

Click for a large image

Technical details:

Processing work flow:

Image acquisition, MaxiDL v5.07.

Stacked and calibrated in CCDStack2.

Levels, curves and color combine in PS CS3.

Optics, Meade LX200 GPS 12" @ f5

Camera, QHY9

Guiding, SXV-AO, an active optics unit, and Lodestar guide camera 8Hz

Image Scale, ~0,8 arc-seconds/pixel

15 x 1200s exposures for the H-alpha, emission of ionized Hydrogen = 5h

6 x 1200s exposures for the O-III, emission of ionized Oxygen = 2h

4 x 1200s exposures for the S-II, emission of ionized Sulfur = 1h 20min.

Monday, December 19, 2016

Filaments of the Veil Nebula in visual spectrum

I have published a mapped color version out of this photo few days ago. This new version shows a detail of Veil Nebula in natural colors. This composition is very close to a real colors. Ionized hydrogen (H-alpha) is emitting red light. Ionized Oxygen (O-III) can be seen as blue hues.

At this Autumn season I have shot several well known targets in constellation Cygnus.

My purpose was show them little differently by selecting some less imaged details to show.

This new image is a four panel mosaic showing the complex, filament like, structures in Veil Nebula supernova remnant. Original full resolution photo is about 11.000 x 4000 pixels! Total exposure time is around 35 hours. The final photo looks like a giant alien space plant...

Filaments of Veil
Please, click for a large image

Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.

A closeup
Please, click for a large image

A horizontal version
Please, click for a large image

Orientation in Veil Nebula
Please, click for a large image

Area of interest is marked as a white rectangle
This wide field photo of the Veil Nebula was shot with Canon EF 200 mm f1.8 camera lens, QHY9 astrocam and Baader narrowband filters.

Technical details

Processing work flow

Image acquisition, MaxiDL v5.07.

Stacked and calibrated in CCDStack2.

Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight

Color combine in PS CS3

Levels and curves in PS CS3.

Imaging optics

Celestron Edge HD 1100 @ f10 with 0,7 focal reducer for Edge HD 1100 telescope

Mount

10-micron 1000

Cameras and filters

Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel

Guider camera, Lodestar x2 and SXV-AOL

Astrodon filter, 5nm H-alpha

Astrodon filter, 3nm O-III

Astrodon filter, 3nm S-II

Exposure times for all three panels

H-alpha, 30 x 1200 s = 10 h

S-II, 24 x 1200 s binned 2x2 = 8 h
O-III, 51 x 1200 s binned 2x2 = 17 h

Total 35 h

Images used for this mosaic

https://astroanarchy.blogspot.fi/2015/09/pickerings-triangle-my-first-light-for.html

https://astroanarchy.blogspot.fi/2016/11/filaments-of-veil-nebula-part-ii.html

Friday, June 6, 2014

A collection of a starless Veil nebula shots

Sometimes I'm publishing experimental starless versions of my astronomical images. They'll show the actual nebula better and have a kind of mystique feel.
Human brains has a tendency to form some quasi logical shapes out of the cloud of random dots, like stars in this case. Without stars, the shapes in a gas cloud stands out much better.

A collection of Veil Nebula supernova remnant images without stars