HD 149382
Coordinates: 
16h 34m 23.33330s, −04° 00′ 52.0171″
16h 34m 23.33330s, −04° 00′ 52.0171″| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ophiuchus
|
| Right ascension | 16h 34m 23.33337s[1] |
| Declination | −04° 00′ 52.0301″[1] |
| Apparent magnitude (V) | 8.943[2] |
| Characteristics | |
| Spectral type | B5 VI[3] |
| U−B color index | −1.143[2] |
| B−V color index | −0.282[2] |
| V−R color index | −0.127[2] |
| R−I color index | −0.135[2] |
| Details | |
Rotational velocity (v sin i) | 4.9±1.4[5] km/s |
| Database references | |
| SIMBAD | data |
HD 149382 is a
ideal conditions, although it can be viewed with a small telescope.[8] Based upon parallax measurements, this star is located at a distance of about 246 light-years (75.5 parsecs) from the Earth
.
This is the brightest known
arcsecond.[9]
In 2009, a
planet, was announced orbiting the star.[5] This candidate object was estimated to have nearly half the mass of the Sun. In 2011, this discovery was thrown into doubt when an independent team of astronomers were unable to confirm the detection. Their observations rule out a companion with a mass greater than Jupiter orbiting with a period of less than 28 days.[9]
See also
References
- ^ S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ S2CID 118627330. See table II.
- ^ S2CID 119428437.
- Bibcode:1953GCRV..C......0W.
- ^ S2CID 119282460.
- ^ ISSN 0004-6256.
- Centre de Données astronomiques de Strasbourg. Retrieved 2010-10-06.
- ISBN 0-486-42820-6.
- ^ S2CID 118337277.
External links
