39 Boötis
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Boötes |
| Right ascension | 14h 49m 41.2935s |
| Declination | +48° 43′ 14.894″ |
| Apparent magnitude (V) | 5.69 |
| Characteristics | |
| Spectral type | F6V+F5V |
| B−V color index | 0.47 |
| Astrometry | |
| Radial velocity (Rv) | -29.5 km/s |
| Proper motion (μ) | RA: -76.93 mas/yr Dec.: 99.13 mas/yr |
| Parallax (π) | 14.22 ± 0.87 mas |
| Distance | 230 ± 10 ly (70 ± 4 pc) |
| Absolute magnitude (MV) | 2.53[1] |
| Details | |
| Mass | 1.43[1] M☉ |
| Rotational velocity (v sin i) | 161.0[1] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
| Database references | |
| SIMBAD | data |
39 Boötis (abbr.: 39 Boo) or ADS 9406 B is a star in the constellation Boötes. Its apparent magnitude is 5.68.
[edit] References
- ^ a b c Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases", Astronomy and Astrophysics 361: 614–628, Bibcode 2000A&A...361..614P
[edit] External links
[edit] Components
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
|---|---|---|---|---|---|
| ADS 9406 A (BD+49 2326A) | 14h 49m 41.5s | +48° 43' 09 | 6.2 | F5 | Simbad |
| ADS 9406 C (CCDM J14497+4843B) | 14h 49m 41.8s | +48° 43' 11 | 6.7 | F5 | Simbad |
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