- B15 minutes (5 frames)
- R12 minutes (4 frames)
- L18 minutes (6 frames)
- G15 minutes (5 frames)
The isolated dwarf galaxy NGC 6503 is a dwarf spiral galaxy located about 18 million light-years from Earth in the constellation Draco. It was discovered by William Herschel in 1784.
The galaxy is about 30,000 light-years in diameter and rotates at about 225 km/s. It contains several star-forming regions at its center, as well as many dark clouds of dust that may obscure some of the star-forming regions.
NGC 6503 is an isolated dwarf spiral galaxy and is not part of a group or cluster of galaxies. It may be part of a long chain of galaxies extending into the local void, forming a galactic filament 26 million light-years long.
The galaxy has angular dimensions of 7.1′ × 2.4′ and apparent magnitude of 10.2. Its galactic plane is inclined to the celestial plane at an angle of 78°±3°, and the main axis of the oval shape of the galaxy is oriented at an angle of 121°. The morphological classification of the galaxy is SAB:(s)bc, which indicates the presence of a bar structure, but without an inner ring and with moderately twisted spiral arms.
A possible bar system has been detected in the infrared, and ultraviolet observations indicate a young ring of star formation surrounding the bar, with a radius of 1 to 2.5 kpc from the center.
In addition, NGC 6503 contains a disk of neutral hydrogen that extends beyond its optical disk. This gas is predominantly the result of star formation, rather than cold gas that is being absorbed by the galaxy. The galaxy may also contain a LINER or Seyfert 2 core.
The galaxy has one known satellite cluster, KK 242, which lies on the border between a dwarf irregular and dwarf spheroidal galaxy.
NGC 6503 is one of the most isolated galaxies in near space. Studying such galaxies can help astronomers understand how galaxies evolve when isolated.
Visibility chart of Isolated Dwarf Galaxy (NGC 6503) 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•