Name in the directory:NGC_7635
Category:Nebula
Right Ascension:23h 21m 31.68s
Declination:+61° 19′ 41.52″
Total Exposure:9 часов 5 минут
Number of Frames:109
Link to FITS files:Download
- O190 minutes (38 frames)
- H215 minutes (43 frames)
- R20 minutes (4 frames)
- B20 minutes (4 frames)
- L20 minutes (4 frames)
- S60 minutes (12 frames)
- G20 minutes (4 frames)
The Bubble Nebula (NGC 7635) is an emission nebula located in the constellation Cassiopeia. The nebula gets its name from its unique bubble-like structure, formed by the stellar wind from a hot, massive star.
Formation and Structure
- The Wolf-Rayet star (BD+60 2522), located at the center of the nebula, is a massive star with a mass between 10 and 40 solar masses and an apparent magnitude of 8.7.
- The star emits a fast stellar wind of ionized gas that cuts through the surrounding thin gas to form a shell.
- The energy emitted by the star ionizes the material in the shell, causing it to glow and creating the visible effect.
Size and observations
- The NGC 7635 nebula is part of a giant molecular cloud and is located between 7,100 and 11,000 light years from Earth.
- The nebula is about 7 light years in diameter.
- Although the nebula is visible in small telescopes, details can only be seen in photographs.
The Bubble Nebula is a striking example of the interaction of stellar wind and molecular clouds, as well as the ionization of interstellar gas.
| Photo | Date | Frames | Exposure | L | R | G | B | H | O | S |
|---|---|---|---|---|---|---|---|---|---|---|
 | 27 Jan 2021 | 109 | 09:05 | 00:20 | 00:20 | 00:20 | 00:20 | 03:35 | 03:10 | 01:00 |
 | 13 Oct 2020 | 97 | 08:05 | 00:20 | 03:35 | 03:10 | 01:00 | |||
 | 21 Aug 2020 | 77 | 06:25 | 03:10 | 02:35 | 00:40 | ||||
 | 05 Jul 2020 | 42 | 03:30 | 01:45 | 01:35 | 00:10 |
Visibility chart of The Bubble Nebula (NGC 7635) during the day
The height diagram of The Bubble Nebula (NGC 7635) above the horizon during the current day for the observatory observation point in Orenburg (51.7, 55.2). The chart shows when the object is above the horizon and at what maximum height in degrees it rises. The data is relevant for the observation date: Saturday, 26 April 2025.
| Date | Moon Phase | Exposure | CCD Temperature | Gain | Offset | Filter |
|---|---|---|---|---|---|---|
- 2023ixf•
- 40 Eri•
- Abell 74•
- Artemis A868 SA•
- a Canis Minoris•
- C 2020 R4 ATLAS•
- C 2020 T2 Palomar•
- C 2021 S3 (PANSTARRS)•
- Haumea (2003 EL61)•
- HCG 68•
- HCG 92•
- IC 1318B•
- IC 1396•
- IC 1795•
- IC 1805•
- IC 1848•
- IC 1871•
- IC 3322A•
- IC 342•
- IC 4015•
- IC 405•
- IC 417•
- IC 434•
- IC 443•
- IC 4703•
- IC 5070•
- IC 5146•
- IC 63•
- M 1•
- M 101•
- M 103•
- M 109•
- M 13•
- M 15•
- M 27•
- M 3•
- M 33•
- M 42•
- M 45•
- M 5•
- M 51•
- M 57•
- M 63•
- M 64•
- M 74•
- M 76•
- M 81•
- M 82•
- M 86•
- M 87•
- M 94•
- M 97•
- NGC 147•
- NGC 1491•
- NGC 1499•
- NGC 1579•
- NGC 1961•
- NGC 2146•
- NGC 2239•
- NGC 2403•
- NGC 281•
- NGC 4236•
- NGC 4565•
- NGC 4631•
- NGC 507•
- NGC 508•
- NGC 5866•
- NGC 5907•
- NGC 6503•
- NGC 6823•
- NGC 6888•
- NGC 6946•
- NGC 6992•
- NGC 6995•
- NGC 7000•
- NGC 7023•
- NGC 7129•
- NGC 7217•
- NGC 7331•
- NGC 7380•
- NGC 7538•
- NGC 7635•
- NGC 7640•
- NGC 7822•
- NGC 891•
- NGC 896•
- NGC 925•
- PGC 54559•
- Sh2-155•
- Sh2-168•
- Sh2 103•
- Sh2 109•
- Sh2 132•
- T CrB•
- UGC 6930•
- V1405 Cas•
- Vesta A807 FA•