NGC 7128
| AladinLite | |
| Constellation | swan |
|
Position equinox : J2000.0 |
|
|---|---|
| Right ascension | 21 h 43 m 57.8 s |
| declination | + 53 ° 42 ′ 55 ″ |
| Appearance
|
|
| classification | II3m |
| Brightness (visual) | 9.7 likes |
| Angular expansion | 4.0 ' |
| Redness ( excess color E (BV)) | 1.03 ± 0.06 |
| Physical data
|
|
| Affiliation | Milky Way |
| distance | 7500 ly (2307 pc ) |
| history | |
| Discovered by | William Herschel |
| Discovery time | October 14, 1787 |
| Catalog names | |
| NGC 7128 • C 2142 + 534 • OCl 218 • Cr 440 • Lund 998 • GC 4701 • H VII 40 • h 2130 • | |
NGC 7128 is a young, galactic open star cluster in the constellation Swan with an angular extent of 4.0 'and an apparent magnitude of 9.7 mag.
It was discovered by William Herschel on October 14, 1787 .