HD 276 is a star located in the constellation South Hydra about 273 light-years from us.
| HD 276 | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000.0 ) | |||
| Type of | Single star | ||
| Right ascension | |||
| Declination | |||
| Distance | 273.9 St. years (84 pc ) [1] | ||
| Visible magnitude ( V ) | 7.566 [1] | ||
| Constellation | South Hydra | ||
| Astrometry | |||
| Radial velocity ( R v ) | 28.3 [2] km / s | ||
| Own movement (μ) | RA: 78.04 [2] Dec: -5,80 [2] | ||
| Parallax (π) | 12.52 ± 0.52 [2] mas | ||
| Absolute magnitude (V) | 2.93 [1] | ||
| Specifications | |||
| Spectral class | F2V [2] | ||
| Color Index ( B - V ) | 0.271 [1] | ||
| physical characteristics | |||
| Weight | 1.35 [1] M ☉ | ||
| Age | 2.2 billion [1] years | ||
| Temperature | |||
| Metallicity | [Fe / H] = - 0.29 [1] | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| Sources: [2] | |||
Features
HD 276 is a 7.566 magnitude star not visible to the naked eye. For the first time in astronomical literature, it is mentioned in the catalog of Henry Draper , published at the beginning of the 20th century . This is a yellow-white dwarf with a mass equal to 1.35 of the mass of the Sun. [1] The age of the star is estimated at approximately 2.2 billion years. No planets have yet been detected in this system.
Notes
- ↑ 1 2 3 4 5 6 7 8 B. Nordström et al. The Geneva-Copenhagen survey of the Solar Neighborhood (inaccessible link) . A&A, Volume 418, Number 3 (May 2004). Date of treatment December 4, 2011. Archived on September 5, 2012.
- ↑ 1 2 3 4 5 6 SIMBAD (English) . - HD 276 in the SIMBAD database . Date of treatment December 4, 2011.
- ↑ 1 2 3 4 Gaia Data Release 2 - 2018.
- ↑ 1 2 M. Asplund , L. Casagrande , S. Cassisi et al. New constraints on the chemical evolution of the solar neighborhood and Galactic disc (s) // Astron. Astrophys. - EDP Sciences , 2011. - Vol. 530. - P. A138. - ISSN 0004-6361 ; 0365-0138 ; 1432-0746 ; 1286-4846 - doi: 10.1051 / 0004-6361 / 201016276
See also
- List of stars of the constellation South Hydra