HD 23514
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 46m 38.3957s |
| Declination | +22° 55′ 11.223″ |
| Apparent magnitude (V) | 14.92 ± 08 |
| Characteristics | |
| Spectral type | F6V |
| U−B color index | 0.55 |
| B−V color index | 0.44 |
| Variable type | 13.14 |
| Astrometry | |
| Radial velocity (Rv) | 12.5 ± 02 km/s |
| Proper motion (μ) | RA: 21.1 -43.0 mas/yr Dec.: 1.1 1.0 90 mas/yr |
| Distance | 400 ly (122.641 pc) |
| Details | |
| Mass | 0.06 ± 0.01 M☉ |
| Radius | 1.28 R☉ |
| Luminosity | 2.8 L☉ |
| Temperature | 2600 ± 100 K |
| Metallicity | 9.95 |
| Age | 0.1 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 23514, is a star in the Pleiades. It is a main-sequence star of class F6, and has been seen to have hot dust particles orbiting around it. These materials, otherwise known as planetesimals which orbit within a circumstellar disc, are evidence of possible planetary formation.[1]
The star system itself is very young, in the 35~100 million years range,[1] meaning that it is very well likely at the stage of forming planets.
The star will be continuously studied to confirm whether it may be a potential candidate for planetary formation. These studies will be carried out by the Spitzer Space Telescope.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| HD 23514 b | M⊕ | ° | R⊕ | |||
| HD 23514 c | M⊕ | ° | R⊕ | |||
| Dust disk | 0.25–2 AU | — | — | |||
References
- 1 2 Rodriguez, David R.; Marois, Christian; Zuckerman, B.; Macintosh, Bruce; Melis, Carl (2012). "A Substellar Companion to the Dusty Pleiades Star HD 23514". The Astrophysical Journal. 748 (1). arXiv:1112.4815. Bibcode:2012ApJ...748...30R. doi:10.1088/0004-637X/748/1/30.
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.