HR 8768
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 02m 45.148s[1] |
| Declination | +44° 03′ 31.50″[1] |
| Apparent magnitude (V) | 6.40[2] |
| Characteristics | |
| Spectral type | B2V[3] |
| U−B color index | -0.58[3] |
| B−V color index | 0.04[3] |
| Variable type | SPB[2] |
| Astrometry | |
| Radial velocity (Rv) | -11.30 ± 0.1[4] km/s |
| Proper motion (μ) | RA: 0.35 ± 0.41[1] mas/yr Dec.: -5.82 ± 0.44[1] mas/yr |
| Parallax (π) | 3.07 ± 0.59[1] mas |
| Distance | approx. 1,100 ly (approx. 330 pc) |
| Absolute magnitude (MV) | -1.16 |
| Other designations | |
| Database references | |
| SIMBAD | data |
HR 8768, also known as LN Andromedae, is a slowly pulsating B star[2] in the constellation Andromeda. Located approximately 326 parsecs (1,060 ly) distant, it varies between apparent magnitudes 6.37 and 6.40 over a period of approximately 3.25 days.[2]
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- 1 2 3 4 VSX; Otero, S. A. (20 July 2012). "LN Andromedae". AAVSO Website. American Association of Variable Star Observers. Retrieved 10 October 2014.
- 1 2 3 "HR 378". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 22 June 2014.
- ↑ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
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