59 Andromedae
Location of 59 Andromedae (circled) | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| 59 And A | |
| Right ascension | 02h 10m 52.82451s[1] |
| Declination | +39° 02′ 22.3597″[1] |
| Apparent magnitude (V) | 6.09[2] |
| 59 And B | |
| Right ascension | 02h 10m 53.65687s[1] |
| Declination | +39° 02′ 35.9164″[1] |
| Apparent magnitude (V) | 6.82[2] |
| Characteristics | |
| 59 And A | |
| Spectral type | B9 V[3] |
| B−V color index | −0.054±0.006[2] |
| 59 And B | |
| Spectral type | A1 Vn[3] |
| B−V color index | +0.081±0.005[2] |
| Astrometry | |
| 59 And A | |
| Radial velocity (Rv) | −1.00±3.4[4] km/s |
| Proper motion (μ) | RA: −13.506[1] mas/yr Dec.: −14.981[1] mas/yr |
| Parallax (π) | 7.1469±0.1007 mas[1] |
| Distance | 456 ± 6 ly (140 ± 2 pc) |
| 59 And B | |
| Radial velocity (Rv) | 6.0±4.6[4] km/s |
| Proper motion (μ) | RA: −9.166[1] mas/yr Dec.: −17.208[1] mas/yr |
| Parallax (π) | 7.4166±0.0619 mas[1] |
| Distance | 440 ± 4 ly (135 ± 1 pc) |
| Details | |
| 59 And A | |
| Radius | 2.73[5] R☉ |
| Luminosity | 83.97[6] L☉ |
| Temperature | 10,870[6] K |
| Rotational velocity (v sin i) | 176[3] km/s |
| 59 And B | |
| Mass | 2.23±0.09[7] M☉ |
| Radius | 2.59[5] R☉ |
| Luminosity | 30.4+7.6 −6.1[7] L☉ |
| Temperature | 9,498[6] K |
| Rotational velocity (v sin i) | 233[3] km/s |
| Other designations | |
| 59 And, BD+38°425, ADS 1683, WDS J02109+3902[8] | |
| 59 And A: GC 2600, HD 13294, HIP 10176, HR 628, SAO 55330, PPM 67045[9] | |
| 59 And B: GC 2602, HD 13295, HIP 10180, HR 629, SAO 55331, PPM 67046[10] | |
| Database references | |
| SIMBAD | A |
| B | |
59 Andromedae, abbreviated 59 And, is a binary star system in the northern constellation of Andromeda with a combined apparent magnitude of 5.64. 59 Andromedae is the Flamsteed designation. As of 2017, the pair had an angular separation of 16.60″ along a position angle (PA) of 36°. Compare this to a separation of 15.3″ along a PA of 35°, as measured in 1783.[11] The two stars have an estimated physical separation of 1,370 AU.[5]
The magnitude 6.09[2] primary component is a B-type main-sequence star with a stellar classification of B9 V.[3] It has 2.73[5] times the Sun's radius and is radiating 84 times the Sun's luminosity from its photosphere at an effective temperature of 10,870 K.[6] It is spinning with a projected rotational velocity of 176 km/s.[3]
The secondary is a magnitude 6.82[2] A-type main-sequence star with a class of A1 Vn,[3] where the 'n' suffix indicates "nebulous" lines due to rapid rotation. It is spinning with a high projected rotational velocity of 233 km/s.[3] The star has 2.23[7] times the Sun's mass and 2.59[5] times the Sun's radius. It is radiating 30[7] times the luminosity of the Sun and has an effective temperature of 9,498 K.[6]
References
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- ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e f g h Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
