- L141 minutes (47 frames)
- G123 minutes (41 frames)
- R126 minutes (42 frames)
- B129 minutes (43 frames)
NGC 7217 is a spiral galaxy located in the constellation Pegasus. It is notable for its multiple concentric rings of stars and dust.
Features
One of the unique features of the galaxy is a group of stars in the core that move in different directions, which attracts the attention of astronomers. These stars also vary in age, which may indicate a complex history of its formation.
Galaxy merger
NGC 7217 is believed to be the result of a merger of two disk galaxies, each of which was rotating in opposite directions. Computer simulations support the hypothesis that the purple galaxy swallowed a smaller spiral galaxy, rich in gas. This process led to a burst of star formation.
NGC 4550
At the center of NGC 7217 is the galaxy NGC 4550, which contains small amounts of molecular hydrogen and interstellar dust.
| Photo | Date | Frames | Exposure | L | R | G | B |
|---|---|---|---|---|---|---|---|
 | 24 Apr 2022 | 173 | 11:32 | 03:08 | 02:48 | 02:44 | 02:52 |
 | 24 Aug 2021 | 168 | 11:12 | 02:48 | 02:48 | 02:44 | 02:52 |
Visibility chart of Spiral galaxy in the constellation Pegasus (NGC 7217) 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•