The Flickr Skullandcrossbonesnebula Image Generatr

Gum Nebula was visible clearer in HII OIII starless version below:
www.flickr.com/photos/hiroc/53822710308

We can not see the big red nebula. It is too faint for our unaided eyes to feel directly, but we can feel the existence of Gum Nebula as a vast G-shaped dark part in the sky as below. It spans about 40 degrees. www.flickr.com/photos/hiroc/16311565540

Gum Nebula exists about 1kLY away from us, and the diameter is about 1kLY. It means that Gum Nebula is extremely large and incredibly close to us, almost reaching us by the half way. Gum Nebula is believed to be old supernova remnant, which exploded about 1 million years ago. It means that the gas shell will reach us 1 million years after today, if we can assume that the expanding velocity is constant.

arctan 1/2 = 26.6 degrees, and angular diameter is 2 x 26.6 = 53 degrees, about 40 degrees in digits. The diameter looks to be equivalent to the calculated angle including the faintest parts.

Colin Gum reported the vast hydrogen-alpha region first in 1955. His sketch (1956) is visible here:

"Colin Gum and The Discovery of The Gum Nebula" by Kerr FJ 1971:
ntrs.nasa.gov/citations/19720004102
ntrs.nasa.gov/api/citations/19720004102/downloads/1972000...

Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 14 times x 60 seconds, 7 x 240 sec, and 8 times x 1,800 seconds at ISO 6,400 and f/3.2 with NB12 filter
6 times x 60 seconds, 6 x 240 sec, and 7 times x 900 seconds at ISO 1,600 and f/3.2 with clear filter

site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.

Gum Nebula was visible clearer in HII OIII starless version below:
www.flickr.com/photos/hiroc/53822710308

Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 14 times x 60 seconds, 7 x 240 sec, and 8 times x 1,800 seconds at ISO 6,400 and f/3.2 with NB12 filter
6 times x 60 seconds, 6 x 240 sec, and 7 times x 900 seconds at ISO 1,600 and f/3.2 with clear filter

site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.

Equipment: Sigma 35mmF1.4 DG HSM Art, Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 6 times x 60 seconds, 6 x 240 sec, and 7 times x 900 seconds at ISO 1,600 and f/3.2

site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.

Equipment: Sigma 35mmF1.4 DG HSM Art, Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 6 times x 60 seconds, 6 x 240 sec, and 7 times x 900 seconds at ISO 1,600 and f/3.2

site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.

Detail of faint parts got clearer after the starless conversion, though there remained trailed stars near the horizon and Canopus, bloated by thin clouds, encroached during the imaging sessions.

We can not see the big red nebula. It is too faint for our unaided eyes to feel directly, but we can feel the existence of Gum Nebula as a vast G-shaped dark part in the sky as below. It spans about 40 degrees. www.flickr.com/photos/hiroc/16311565540

Gum Nebula exists about 1kLY away from us, and the diameter is about 1kLY. It means that Gum Nebula is extremely large and incredibly close to us, almost reaching us by the half way. Gum Nebula is believed to be old supernova remnant, which exploded about 1 million years ago. It means that the gas shell will reach us 1 million years after today, if we can assume that the expanding velocity is constant.

arctan 1/2 = 26.6 degrees, and angular diameter is 2 x 26.6 = 53 degrees, about 40 degrees in digits. The diameter looks to be equivalent to the calculated angle including the faintest parts.

Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 14 times x 60 seconds, 7 x 240 sec, and 8 times x 1,800 seconds at ISO 6,400 and f/3.2

Enlarged the frame at 200%, applied StarNet ++ v2.0 (finer tiles, total number of tiles 4,902), and restored back to 100%.

site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.

It was too late to take this object in May. The object was too low in the west, and a part of the frame got stars drifted due to differential atmospheric refraction. Atmospheric layer elevated stars near the horizon. North is up, and east is to the left.

We can not see the big red nebula. It is too faint for our unaided eyes. We can feel the existence of Gum Nebula as a vast G-shaped dark part in the sky as below. It spans about 40 degrees.
www.flickr.com/photos/hiroc/16311565540

Colin Gum reported the vast hydrogen-alpha region first in 1955. His sketch (1956) is visible here:

"Colin Gum and The Discovery of The Gum Nebula" by Kerr FJ 1971:
ntrs.nasa.gov/citations/19720004102
ntrs.nasa.gov/api/citations/19720004102/downloads/1972000...

We can not see Gum Nebula on "Atlas Coeli Skalnaté Pleso 1950.0" by Antonín Bečvář or on "Sky Atlas 2000.0" by Wil Tirion and Roger Sinnott, though Vela Supernova Remnant is on "Sky Atlas 2000.0." I have both big atlases. They are beautiful.

Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 14 times x 60 seconds, 7 x 240 sec, and 8 times x 1,800 seconds at ISO 6,400 and f/3.2

site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.

It was too late to take this object in May. The object was too low in the west, and a part of the frame got stars drifted due to differential atmospheric refraction. Atmospheric layer elevated stars near the horizon. North is up, and east is to the left.

We can not see the big red nebula. It is too faint for our unaided eyes. We can feel the existence of Gum Nebula as a vast G-shaped dark part in the sky as below. It spans about 40 degrees.
www.flickr.com/photos/hiroc/16311565540

Colin Gum reported the vast hydrogen-alpha region first in 1955. His sketch (1956) is visible here:

"Colin Gum and The Discovery of The Gum Nebula" by Kerr FJ 1971:
ntrs.nasa.gov/citations/19720004102
ntrs.nasa.gov/api/citations/19720004102/downloads/1972000...

We can not see Gum Nebula on "Atlas Coeli Skalnaté Pleso 1950.0" by Antonín Bečvář or on "Sky Atlas 2000.0" by Wil Tirion and Roger Sinnott, though Vela Supernova Remnant is on "Sky Atlas 2000.0." I have both big atlases. They are beautiful.

Equipment: Sigma 35mmF1.4 DG HSM Art, IDAS NB12 Dual Narrow Band Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 14 times x 60 seconds, 7 x 240 sec, and 8 times x 1,800 seconds at ISO 6,400 and f/3.2

site: 2,430m above sea level at lat. 24 38 55 South and long. 70 16 52 West near Cerro Armazones Chile
SQML was 21.55 at the night. Ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit.

Skull and Crossbones Nebula is a star-forming region It includes areas where large clouds of hydrogen gas incubate new stars.

Taken using the ASI Seestar S50 on an almost full moon night using the inbuilt duo band filter, it was a very short image run being only 3 minutes of 10 second exposures.

Stacked and processed using PixInsight.

Equipment Used:
SeeStar S50
Inbuilt Duo Band Filter

Exposure Details:
18 x 10 second exposures

Total Integration Time: 3 Minutes

Equipment info:
Sky Watcher Esprit 100 ED Pro
Sky Watcher NEQ6 Pro
ZWO ASI1600MM-Cool
Chroma Ha 5nm
Chroma OIII 3nm

Image Acquisition Details:
6x900 sec Ha @ Gain 200, -15C
6x900 sec OIII @ Gain 200, -15C
30x30 sec RGB @ Gain 200, -15C (Stars only)

Image Processing Software:
Deep Sky Stacker
Photoshop CC
Straton

Site information:
Carletonville, Bortle 4, SQM 20.6 mag/arcsec

Janco Moolman

This is my wide-field version of The Skull and Crossbones Nebula in narrowband using the Hubble Palette. NGC 2467 is an active star-forming region in the constellation Puppis

SII has been mapped to the red channel, Ha to the green channel, and OIII to the Blue channel to produce a false colour image.

Equipment Details:
•10 Inch RCOS fl 9.1
•Astro Physics AP-900 Mount
•SBIG STL 11000m
•FLI Filter Wheel
•Baader Planetarium H-alpha 7nm Narrowband-Filter
•Baader Planetarium OIII 8.5nm Narrowband-Filter
•Baader Planetarium SII 8.0nm Narrowband-Filter

Exposure Details
•Ha 26X1800
•SII 30X1800
•OIII 28X1800

Total Time: 42 hours

Popularly known as the "Skull and Crossbones Nebula, NGC 2467 is an active star-forming region in the constellation Puppis. The presence of large hydrogen gas clouds are a key ingredient required for the creation of new stars.

Observations of the many stars in NGC 2467 suggest that they may be more a superposition of loose groups of stars at different distances than a coherent open cluster of stars energizing the nebula. I guess it really depends on one's perspective in the universe, but from here, I think it looks awesome.

If you look towards the right off centre, there is what appears to be a bright gas wall. The newly formed stars are slowing devouring this glowing rift. Moving towards the centre, there are many dark dust lanes obscuring parts of the nebula. Within these areas, the process of forming new stars is taking place. Several Bok globules can be seen as well (these are dark globule structures). They are very similar to those found in the Running Chicken Nebula. Infrared detectors can cut through the dust in these areas and create amazing images of the process of newborn stars. Unfortunately, my camera does not allow me to look into these areas.

My aims with this project were fairly simple. I wanted to highlight the dust lanes and bok globulus within the nebula. These areas simply add a layer of depth into the final result. The RGB palette is my preference in astrophotography. But I really wanted the extra details available in the narrowband data that I captured. Merging such different data sets into a single image that resembles a traditional RGB rendition can be challenging. Hopefully, the result isn’t too far off base and pleasing to look at.

Equipment Details:
•10 Inch RCOS fl 9.1
•Astro Physics AP-900 Mount
•SBIG STL 11000m
•FLI Filter Wheel
•Astrodon LRGB Filters
•Baader Planetarium H-alpha 7nm Narrowband-Filter
•Baader Planetarium OIII 8.5nm Narrowband-Filter
•Baader Planetarium SII 8.0nm Narrowband-Filter

Exposure Details
•Red 16X450 2X2
•Green 16X450 2X2
•Blue 16X450 2X2
•Lum 62X900
•Ha 26X1800
•SII 30X1800
•OIII 28X1800

Total Time: 63.5 hours

Out of this world public domain images from NASA. All original images and many more can be found from the NASA Image Library

Higher resolutions with no attribution required can be downloaded: www.rawpixel.com/board/418580/nasa