GJ 3146 - A star in the constellation Aries . It is located at a distance of about 27.7 light years from the sun. This is one of the stars closest to the Sun.
| Gj 3146 | |||
|---|---|---|---|
| Star | |||
 GJ 3146 by the artist. | |||
| Observational data ( Age J2000.0 ) | |||
| Type of | Single star | ||
| Right ascension | |||
| Declination | |||
| Distance | 27.7 ± 0.94 St. years (8.50 ± 0.29 pc ) [1] | ||
| Visible magnitude ( V ) | 15,80 [1] | ||
| Constellation | Aries | ||
| Astrometry | |||
| Radial velocity ( R v ) | |||
| Own movement (μ) | RA: 491 [4] Dec: -434 [4] | ||
| Parallax (π) | 118.2 ± 6.8 [4] mas | ||
| Absolute magnitude (V) | 16.15 [1] | ||
| Specifications | |||
| Spectral class | M6V [4] | ||
| Color Index ( B - V ) | 1.98 [1] | ||
| Variability | Flashing [4] | ||
| physical characteristics | |||
| Temperature | 2940 [5] K | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| ARICNS | data | ||
| Sources: [4] [1] | |||
Features
GJ 3146 - a dim star of 15.80 magnitude, not visible to the naked eye. It is a relatively cold red dwarf with an active chromosphere : it is a flashing star , i.e. it spontaneously, non-periodically increases its own luminosity several times. The surface temperature of the star is about 2940 Kelvin . [5] No planets have yet been detected in this system.
Notes
- ↑ 1 2 3 4 5 ARICNS (English) . - GJ 3146 in the ARICNS database. Date of treatment December 1, 2011.
- ↑ 1 2 Mahadevan S. A NEAR-INFRARED SPECTROSCOPIC SURVEY OF 886 NEARBY M DWARFS // The Astrophysical Journal : Supplement Series - 2015 .-- T. 220, no. 1. - P. 16. - ISSN 0067-0049 ; 1538-4365 - doi: 10.1088 / 0067-0049 / 220/1/16
- ↑ 1 2 3 4 Gaia Data Release 2 - 2018.
- ↑ 1 2 3 4 5 6 SIMBAD (English) . - GJ 3146 in the SIMBAD database . Date of treatment December 1, 2011.
- ↑ 1 2 Thomas. N. Gautier III, GH Rieke, John Stansberry, Geoffrey C. Bryden, Karl R. Stapelfeldt, Michael W. Werner, Charles A. Beichman, Christine Chen, Kate Su, David Trilling, Brian M. Patten, Thomas L. Roellig. Far Infrared Prperties of M Dwarfs . Arxiv.org (3 Jul 2007). Date of treatment December 1, 2011. Archived July 31, 2012.
See also
- Aries constellation stars list