HD 144628 ( GJ 613 ) is a solitary star in the constellation Nagon . It is located about 46.8 light years from the sun. This is one of the stars closest to us .
| HD 144628 | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000.0 ) | |||
| Type of | Single star | ||
| Right ascension | |||
| Declination | |||
| Distance | 46.8 St. years (14.4 pc ) [1] | ||
| Visible magnitude ( V ) | 7,110 [2] | ||
| Constellation | The rectangle | ||
| Astrometry | |||
| Radial velocity ( R v ) | 37.9 [3] km / s | ||
| Own movement (μ) | RA: -135.23 [3] Dec: 333.37 [3] | ||
| Parallax (π) | 68.17 ± 0.64 [3] mas | ||
| Absolute magnitude (V) | +6.32 [1] | ||
| Specifications | |||
| Spectral class | K1V [3] | ||
| Color Index ( B - V ) | 0.860 [2] | ||
| Color Index ( U - B ) | 0.48 [1] | ||
| physical characteristics | |||
| Weight | 0.70 [5] M ☉ | ||
| Radius | 0.8 [1] R ☉ | ||
| Temperature | 5071 ± 43 [5] K | ||
| Luminosity | 0.26 [1] L ☉ | ||
| Metallicity | [Fe / H] = - 0.33 [2] | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| Sources: [3] | |||
Features
HD 144628 - 7.11 star of visible magnitude; [2] For the first time in astronomical literature is mentioned in the catalog of Henry Draper , published at the beginning of the XX century . This is an orange dwarf with a mass of 70% of the sun . [5] The diameter is 80% of the sun; [1] The surface temperature of the star is about 5071 Kelvin . Luminosity HD 144628 is equal to 26% of solar luminosity. No planets have yet been detected in this system.
Notes
- ↑ 1 2 3 4 5 6 Cape Photographic Durchmusterung -56 ° 7345 . Internet Stellar Database (4-April-2001). Date of treatment March 8, 2013. Archived on April 7, 2013.
- ↑ 1 2 3 4 L. Casagrande, L. Portinari, C. Flynn. Accurate fundamental parameters for Lower Main Sequence Stars . Arxiv.org (24 Aug 2006). Date of treatment March 8, 2013.
- ↑ 1 2 3 4 5 6 SIMBAD (English) . - HD 144628 in the SIMBAD database . Date of treatment March 8, 2013.
- ↑ 1 2 3 4 Gaia Data Release 2 - 2018.
- ↑ 1 2 3 NC Santos et al. Spectroscopic metallicities for planet-host stars: extending the samples Arxiv.org (19 Apr 2005). Date of treatment March 8, 2013.
See also
- List of Stars of the Constellation constellation
- List of nearby stars