- O220 minutes (44 frames)
- H315 minutes (63 frames)
- S210 minutes (42 frames)
Sh2-109 is a diffuse nebula in the constellation Cygnus, which is a complex network of filaments of interstellar gas and dust. These structures, invisible to small telescopes, are easily revealed in long-exposure photographs, especially when using narrow-band filters that enhance the emission of ionized hydrogen.
Key Features
Sh2-109 is a vast system of ionized hydrogen that includes several distinct regions.
- Distance: approximately 1,400 parsecs (about 4,600 light-years) from Earth.
- Ionization: occurs due to bright stars near the nebula, whose radiation causes the interstellar gas to glow.
Visual Features
The nebula has a complex structure of thin, lacy filaments. They are formed as a result of the interaction of stellar winds and radiation with the surrounding interstellar matter. In long-exposure photographs, these details become especially expressive, emphasizing the richness of forms and contrasts.
Interest for astronomy
Sh2-109 is of interest for studying processes related to the interaction of massive stars and their surroundings. Studies of the nebula help astronomers understand:
- The mechanisms of ionization of interstellar gas.
- The influence of stellar winds on the formation of the structure of the nebula.
- The characteristics of the stars that play a key role in its glow.
Sh2-109 is not only a scientifically significant object, but also an excellent target for astrophotography, revealing the complex beauty of our galaxy.
| Photo | Date | Frames | Exposure | H | O | S |
|---|---|---|---|---|---|---|
 | 08 Sep 2022 | 149 | 12:25 | 05:15 | 03:40 | 03:30 |
 | 22 Sep 2021 | 149 | 12:25 | 05:15 | 03:40 | 03:30 |
Visibility chart of Diffuse Nebula Sh2-109 during the day
| 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•