NGC 1276
Double star in the constellation Perseus
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NGC 1276 is an optical[2][3] double star system[1][8][9][10] located in the constellation Perseus.[1][8][10] The system was discovered by astronomer John Dreyer[1][10][11] on December 12, 1876.[1][11] The pair consists of two 15th magnitude stars[1][4] known as Pul -3 270349 and Pul -3 270357 that are unrelated as they lie at different distances from each other.[4][2][3] Pul -3 270349 lies at a distance of 1,134.5587 parsecs (3,700.436 ly)[2] and Pul -3 270357 lies at a distance of 1,774.6229 parsecs (5,788.046 ly).[3]
Apparent magnitude(B)15.6 (Pul -3 270349)/15.5 (Pul -3 270357)[4]
| Observation data Epoch J2000.0 Equinox ICRS | |
|---|---|
| Constellation | Perseus[1] |
| NGC 1276 | |
| Right ascension | 03h 19m 51.2s[1] |
| Declination | 41° 38′ 29″[1] |
| Pul -3 270349 | |
| Right ascension | 03h 19m 50.5421584698s[2] |
| Declination | 41° 38′ 31.367763313″[2] |
| Pul -3 270357 | |
| Right ascension | 03h 19m 51.8974508403s[3] |
| Declination | 41° 38′ 29.364043732″[3] |
| Astrometry | |
| Pul -3 270349 | |
| Proper motion (μ) | RA: 0.576[2] mas/yr Dec.: -3.787[2] mas/yr |
| Parallax (π) | 0.8814[2]±0.0323[2] mas |
| Distance | 1,134.5587 parsecs (3,700.436 ly)[2] ly |
| Pul -3 270357 | |
| Proper motion (μ) | RA: 2.389[3] mas/yr Dec.: -4.469[3] mas/yr |
| Parallax (π) | 0.5635[3]±0.0338[3] mas |
| Distance | 1,774.6229 parsecs (5,788.046 ly)[3] ly |
| Characteristics | |
| Apparent magnitude (B) | 15.6 (Pul -3 270349)/15.5 (Pul -3 270357)[4] |
| Apparent magnitude (R[4]) | 14.8 (Pul -3 270349)[4]/14.7 (Pul -3 270357)[4] |
| Details | |
| Pul -3 270349 | |
| Radius | 1.09[5] R☉ |
| Luminosity | 0.838[5] L☉ |
| Temperature | 5299.00[5] K |
| Pul -3 270357 | |
| Radius | 1.48[5] R☉ |
| Luminosity | 1.964[5] L☉ |
| Temperature | 5614.53[5] K |
| Other designations | |
| Pul -3 270349: WISEA J031950.54+413831.4, 2MASS J03195054+4138313, GALEXASC J031950.58+413831.6, GALEXMSC J031950.52+413831.0, SSTSL2 J031950.52+413831.3, TIC 178110482, Gaia DR2 239424674200835712[2][6] | |
| Pul -3 270357: WISEA J031951.89+413829.3, 2MASS J03195190+4138293, GALEXASC J031951.93+413829.8, GALEXMSC J031951.88+413829.5, SSTSL2 J031951.88+413829.3, TIC 178110483, Gaia DR2 239424669903392256[3][7] | |
| Database references | |
| SIMBAD | data |
| Pul -3 270349 | |
| Pul -3 270357 | |
The two stars are about the same size and luminosity as the Sun.[5]