7 Andromedae
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 12m 33.00s [1] |
| Declination | +49° 24′ 22.3″ [1] |
| Apparent magnitude (V) | 4.54 |
| Characteristics | |
| Spectral type | F0V |
| U−B color index | 0.04 |
| B−V color index | 0.29 |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | 12.5 km/s |
| Proper motion (μ) | RA: 90.23 ± 0.16 [1] mas/yr Dec.: 95.56 ± 0.17 [1] mas/yr |
| Parallax (π) | 40.67 ± 0.22[1] mas |
| Distance | 80.2 ± 0.4 ly (24.6 ± 0.1 pc) |
| Absolute magnitude (MV) | 4.819 |
| Details | |
| Mass | 1.7 M☉ |
| Radius | 1.3 R☉ |
| Luminosity | 6 L☉ |
| Surface gravity (log g) | ? |
| Temperature | 6.000–7.500 K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
| Database references | |
| SIMBAD | data |
7 Andromedae is a star in the constellation Andromeda. Its apparent magnitude is 4.53.
[edit] References
- ^ a b c d e van Leeuwen, F. (2007). "HIP 114570". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=114184. Retrieved 2010-03-21.
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