HD 400 is a star that is located in the constellation Andromeda about 103.5 light years from us.
| HD 400 | |||
|---|---|---|---|
| Star | |||
| Observational data ( Epoch J2000.0 ) | |||
| Type of | Single star | ||
| Right ascension | |||
| Declination | |||
| Distance | 103.5 ± 16.7 st. years (31.75 ± 5.14 pc ) [1] | ||
| Visible magnitude ( V ) | 6.21 [1] | ||
| Constellation | Andromeda | ||
| Astrometry | |||
| Radial velocity ( R v ) | -13.8 [2] km / s | ||
| Proper motion (μ) | RA: -114.52 [2] Dec: -126.06 [2] | ||
| Parallax (π) | 30.82 ± 0.33 [2] mas | ||
| Absolute magnitude (V) | 3.70 [1] | ||
| Specifications | |||
| Spectral class | F8IV [2] | ||
| Color Indicator ( B - V ) | 0.50 [1] | ||
| Color Index ( U - B ) | 0.05 [1] | ||
| physical characteristics | |||
| Weight | 1.09 [3] M ☉ | ||
| Age | 6.1 billion [3] years | ||
| Temperature | |||
| Metallicity | [Fe / H] = - 0.35 [3] | ||
| |||
| Information in databases | |||
| SIMBAD | data | ||
| ARICNS | data | ||
| Sources: [2] [1] | |||
Characteristics
HD 400 - 6,21 star size. For the first time in astronomical literature, it is mentioned in the catalog of Henry Draper , published in the early XX century . This is a yellow-white subgiant with a mass equal to 1.09 solar masses . [3] The star’s age is estimated at about 6.1 billion years. Planets in this system have not yet been found.
Notes
- ↑ 1 2 3 4 5 6 ARICNS (English) . - HD 400 in the ARICNS database. The appeal date is December 4, 2011.
- ↑ 1 2 3 4 5 6 SIMBAD (English) . - HD 400 in SIMBAD database . The appeal date is December 4, 2011.
- ↑ 1 2 3 4 B. Nordström et al. The Geneva-Copenhagen survey of the Solar Neighborhood (English) (inaccessible link) . A & A, Volume 418, Number 3 (May 2004). The date of circulation is December 4, 2011. Archived on September 5, 2012.
- 2 1 2 Aguilera-Gómez C., Ramírez I., Chanamé J. Lithium desert . Astrophys. - EDP Sciences , 2018. - Vol. 614. - P. A55. - ISSN 0004-6361 ; 0365-0138 ; 1432-0746 ; 1286-4846 - doi: 10.1051 / 0004-6361 / 201732209
See also
- List of stars of the constellation Andromeda