Title: "DER BLASENNEBEL" - Deepfield 3454mm LRGB - Sternbild Cassiopeia
Description:
"THE BUBBLE NEBULA"
- Deepfield 3454mm LRGB
- Constellation Cassiopeia
NGC 7635, also known as the Bubble Nebula, is an emission nebula and an HII region in the constellation Cassiopeia in the northern starry sky, which is about 7100 light years away from Earth. It is located near the open star cluster Messier 52 and its name comes from a stellar wind bubble created by the stellar wind of an O star called BD +60 2522 (SAO 20575). The star ejects large quantities of gas, which spread out into its surroundings at around 28 kilometers per second. The expanding gases collide with the huge surrounding molecular cloud in this region, which resists the expansion. This creates a shock wave that forms the outer shell of the gas bubble. SAO 20575 has a magnitude of 7.8 mag. NGC 7635 was discovered on November 3, 1787 by the German-British astronomer William Herschel.
Photographed with a Planewave CDK20 20" f/6.8 Corrected Dall-Kirkham Astrograph at 3446mm focal length and a Moravian Instruments C3-61000 PRO camera.
Filter sets from Bader and Chroma. A Planewave L-500 served as mount.
Remote telescope provider Insight Observatory, taken at Remote Skygems Observatories - Nerpio, Spain
Imaging conditions - clear nights under Bortle 1-2 sky.
A total of 112 individual subs were created (with narrowband images), with a total exposure time of just over 16 hours.
Uploaded: ...
Title: "THE BUBBLE NEBULA" - Deepfield 3454mm LRGBSHH - Constellation Cassiopeia
Description:
"THE BUBBLE NEBULA"
- Deepfield 3454mm LRGBSHH
- Constellation Cassiopeia
NGC 7635, also known as the Bubble Nebula, is an emission nebula and an HII region in the constellation Cassiopeia in the northern starry sky, which is about 7100 light years away from Earth. It is located near the open star cluster Messier 52 and its name comes from a stellar wind bubble created by the stellar wind of an O star called BD +60 2522 (SAO 20575). The star ejects large quantities of gas, which spread out into its surroundings at around 28 kilometers per second. The expanding gases collide with the huge surrounding molecular cloud in this region, which resists the expansion. This creates a shock wave that forms the outer shell of the gas bubble. SAO 20575 has a magnitude of 7.8 mag. NGC 7635 was discovered on November 3, 1787 by the German-British astronomer William Herschel.
Elaboration with SuperLuminance (Luminance + hAlpha + S2) and stars in RGB colors. Narrowband data processed as SHH, in magenta/blue colors.
Taken with a Planewave CDK20 20" f/6.8 Corrected Dall-Kirkham Astrograph at 3446mm focal length and a Moravian Instruments C3-61000 PRO camera.
Filter sets from Bader and Chroma. A Planewave L-500 served as mount.
Remote telescope provider Insight Observatory, taken at Remote Skygems Observatories - Nerpio, Spain
Imaging conditions - clear nights under Bortle 1-2 sky.
A total of 112 individual subs were created (with narrowband images), with a total exposure time of just over 16 hours.
Uploaded: ...
| Elaborations (L) hAlpha RGB |
| Elaborations (L) RGB |
| Elaborations (L) SHH |
| Remote Telescope (rented) |
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