8 Andromedae
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| Observation data Epoch J2000 |
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| Constellation (pronunciation) |
Andromeda |
| Right ascension | 23h 17m 44.647s |
| Declination | +49° 00' 55.079"' |
| Apparent magnitude (V) | 4.85 |
| Characteristics | |
| Spectral type | M2III |
| U-B color index | 1.98 |
| B-V color index | 1.67 |
| Variable type | Variable Star |
| Astrometry | |
| Radial velocity (Rv) | -8.0 km/s |
| Proper motion (μ) | RA: 34.48 mas/yr Dec.: 6.74 mas/yr |
| Parallax (π) | 4.98 ± 0.65 mas |
| Distance | approx. 650 ly (approx. 200 pc) |
| Absolute magnitude (MV) | 6.52 |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Surface gravity (log g) | ? |
| Luminosity | ? L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Visual binary orbit | |
| Companion | 8 Andromedae B |
| Semimajor axis (a) | 7.6" |
| Inclination (i) | 161° |
| Visual binary orbit | |
| Companion | 8 Andromedae C |
| Semimajor axis (a) | 219.4" |
| Inclination (i) | 131° |
| Visual binary orbit | |
| Companion | 8 Andromedae D |
| Semimajor axis (a) | 54.9" |
| Inclination (i) | 232° |
| Visual binary orbit | |
| Companion | 8 Andromedae E |
| Semimajor axis (a) | 14" |
| Inclination (i) | 173° |
| Visual binary orbit | |
| Companion | 8 Andromedae F |
| Semimajor axis (a) | 6.4" |
| Inclination (i) | 185° |
| Other designations | |
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SV* ZI 2130, GC 32432, IRAS 23154+4844, SAO 52871, 8 And, GCRV 14610, IRC +50462, ADS 16656 A, JP11 3614, UBV M 26942, AG+48° 2032, HD 219734, 2MASS J23174463+4900549, UBV 19954, BD+48° 3991, HIC 115022, NSV 14484, CCDM J23178+4901A, HIP 115022, PLX 5637, CSI+48° 3991 1, HR 8860, PPM 64030, CSV 102239, IDS 23131+4828 A, RAFGL 3065.
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| Database references | |
| SIMBAD | data |
8 Andromedae or 8 And is a red Giant star in the constellation Andromeda. Its apparent magnitude is 4.85.
[edit] References
[edit] Component
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
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| 8 Andromedae B (BD+48 3991B) | 23h 17m 44.7s | +49° 00' 47 | 13 | Simbad | |
| 8 Andromedae C (BD+48 3991C) | 23h 18m 01.2565s | +48° 58' 31.299 | 10.7 | Simbad | |
| 8 Andromedae D (BD+48 3991D) | 23h 17m 40.0s | +49° 00' 20 | 11.6 | Simbad | |
| 8 Andromedae E (CCDM J23178+4901P) Star in double system |
23h 17m 44.7s | +49° 00' 40 | 16.0 | Simbad |
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