The Flickr Velasupernovaremnant Image Generatr

This is the final version of the series. It took 3 successive nights to obtain the data, and I could enjoy processing them for a week. I put 60-second and 240-second frames taken with clear filter on HII OIII enhanced starless frame. It resulted in this dust and gas enhanced and stars smaller and crisp image. I could make this deeper image with the gimmick easily. I am happy at the final result.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

This is the final version of the series. It took 3 successive nights to obtain the data, and I could enjoy processing them for a week. I put 60-second and 240-second frames taken with clear filter on HII OIII enhanced starless frame. It resulted in this dust and gas enhanced and stars crisp image. Great Carina Nebula was bright here.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter. Stars near left upper corner trailed due to differential atmospheric refraction near the horizon.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter. Stars near left upper corner trailed due to differential atmospheric refraction near the horizon.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got far clearer with the filter and starless conversion. It was visible clearly that oxygen III clouds of Vela SuperNova Remnant were distributed faintly and widely toward west. I hope to image the area again with longer optics.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got far clearer with the filter and starless conversion. It was visible clearly that oxygen III clouds of Vela SuperNova Remnant were distributed faintly and widely toward west. I hope to image the area again with longer optics.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with the filter. Stars near left upper corner trailed due to differential atmospheric refraction near the horizon.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with the filter. Stars near left upper corner trailed due to differential atmospheric refraction near the horizon.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband 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: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Equipment: Sigma 28mmF1.4 "Art" 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: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

Equipment: Sigma 28mmF1.4 "Art" 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: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

Equipment: Sigma 28mmF1.4 "Art" 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: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

Equipment: Sigma 28mmF1.4 "Art" 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: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

Deep within the constellation Monoceros, the Rosette Nebula blazes as a cosmic forge, where gravity and radiation sculpt vast towers of gas and dust. This central region is where stars ignite, forging the elements that may one day become new worlds.

This two-panel mosaic captures the nebula’s elaborate core, where the young, searing-hot stars of NGC 2244 blaze through the surrounding clouds, shaping an ever-evolving masterpiece. Every arc and filament in this celestial furnace tells the story of the universe’s endless cycle - destruction, rebirth, and the birth of light itself.

Want to see all details up close? Ultra HD, 15K resolution version can be found here: tinyurl.com/Gigapan-RP-Astro - see last photo to have an idea what it looks like 😊

Astrobin link: app.astrobin.com/u/deepskyjourney?i=h3eg8s
IG: @deepskyjourney | FB: /RodPrazeresAstrophotography
All other socials: linktr.ee/deepskyjourney


Tech specs:

Total integration: 37h 30m

Integration per filter:
- Hα: 13h 10m (79 × 600’)
- SII: 13h 50m (83 × 600’)
- OIII: 10h 30m (63 × 600’)

Equipment:

- Telescope: Sharpstar Askar 130PHQ
- Camera: ZWO ASI2600MM Pro
- Mount: Sky-Watcher NEQ6-Pro
- Filters: Antlia 3nm Narrowband SHO 36 mm
- Drizzled 2x

Thank you!

Deep within the constellation Monoceros, the Rosette Nebula blazes as a cosmic forge, where gravity and radiation sculpt vast towers of gas and dust. This central region is where stars ignite, forging the elements that may one day become new worlds.

This two-panel mosaic captures the nebula’s elaborate core, where the young, searing-hot stars of NGC 2244 blaze through the surrounding clouds, shaping an ever-evolving masterpiece. Every arc and filament in this celestial furnace tells the story of the universe’s endless cycle - destruction, rebirth, and the birth of light itself.

Want to see all details up close? Ultra HD, 15K resolution version can be found here: tinyurl.com/Gigapan-RP-Astro - see last photo to have an idea what it looks like 😊

Astrobin link: app.astrobin.com/u/deepskyjourney?i=h3eg8s
IG: @deepskyjourney | FB: /RodPrazeresAstrophotography
All other socials: linktr.ee/deepskyjourney


Tech specs:

Total integration: 37h 30m

Integration per filter:
- Hα: 13h 10m (79 × 600’)
- SII: 13h 50m (83 × 600’)
- OIII: 10h 30m (63 × 600’)

Equipment:

- Telescope: Sharpstar Askar 130PHQ
- Camera: ZWO ASI2600MM Pro
- Mount: Sky-Watcher NEQ6-Pro
- Filters: Antlia 3nm Narrowband SHO 36 mm
- Drizzled 2x

Thank you!

Welcome to the constellation Vela, where the cosmos tells a story of creation and destruction. At the center of this image lies RCW 38, a stellar nursery where young stars are born amidst glowing gas and dust, lighting up their surroundings.

In the bottom-right, the striking Pencil Nebula (NGC 2736) is a glowing filament of the Vela Supernova Remnant, a structure formed by a massive stellar explosion thousands of years ago. Next to it, the blue filaments - highlighted using an OIII filter - trace ionized oxygen gas, part of the same remnant. Nearby stars like c Vel, f Vel, and g Vel shine brightly within this tapestry of light.

In contrast, the serene NGC 2670 star cluster in the top-left adds a sense of calm to this dynamic scene.

This image was processed in the HOO palette, combining hydrogen and oxygen emissions to create the vibrant reds and blues. It represents over 14h of imaging time and careful post-processing to bring out these intricate details.

Details:
• Antlia 3nm H-alpha: 39×600″ (6h 30′)
• Antlia 3nm OIII: 47×600″ (7h 50′)
• Integration Time: 14h 20′
• Telescope: William Optics RedCat 51 II
• Camera: ZWO ASI2600MM Pro
• Mount: Sky-Watcher NEQ6-Pro

The universe is a story of beginnings and endings, with regions like RCW 38 and the Vela Nebula serving as stunning chapters. Follow for more journeys through the stars!

Acquisition, processing and copyright: Rod Prazeres Astrophotography
IG: @deepskyjourney
FB: Rod Prazeres Astrophotography
All other Socials: linktr.ee/deepskyjourney

High def image can be provided on request.

Around 11 000 years ago a massive star ended its life in a powerful explosion, known as a supernova. During explosions like this, shock waves ripple out through the surrounding gas, compressing it into intricate thread-like structures. The energy that’s released during a supernova then heats these threads, causing them to shine brightly. The result is what we can see in this Picture of the Week: the Vela supernova remnant. This picture is just a small chunk of a much larger image, taken with the OmegaCAM instrument on the VLT Survey Telescope (VST), which is hosted at ESO’s Paranal Observatory. At only 800 light-years from Earth, the Vela supernova remnant is one of the closest examples of these dramatic events. Thanks to its proximity we can study this object in great detail, to help us understand what happens when massive stars reach the end of their life in spectacular fashion.

Credit: ESO/VPHAS+ team. Acknowledgement: Cambridge Astronomical Survey Unit

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.