HR 5553
From Wikipedia, the free encyclopedia
Observation data Epoch 2000 Equinox 2000 | |
---|---|
Constellation | Boötes |
Right ascension | 14h 53m 23.8s |
Declination | +19° 09' 10.1" |
Apparent magnitude (V) | 6.00 |
Characteristics | |
Spectral type | K2 V/? |
U−B color index | 0.50 |
B−V color index | 0.84 |
R−I color index | 0.42 |
Astrometry | |
Radial velocity (Rv) | -31.0 km/s |
Proper motion (μ) | RA: -442.75 mas/yr Dec.: 216.84 mas/yr |
Parallax (π) | 86.68 ± 0.80 mas |
Distance | 37.6 ± 0.3 ly (11.5 ± 0.1 pc) |
Absolute magnitude (MV) | 5.68 |
Details | |
Age | (0.7–1.3) × 109[1] years |
Other designations | |
HR 5553 is a binary star system located thirty-eight light-years away, in the constellation Boötes. The A component is an orange, main sequence (K2 V) star.
References
- ↑ Mamajek, Eric E.; Hillenbrand, Lynne A. (November 2008). "Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics". The Astrophysical Journal 687 (2): 1264–1293. arXiv:0807.1686. Bibcode:2008ApJ...687.1264M. doi:10.1086/591785.
External links
|
|
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.