| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Vela |
| Right ascension | 09h 53m 40.077s |
| Declination | -45° 39′ 33.06″ |
| Apparent magnitude (V) | 12.3 |
| Characteristics | |
| Spectral type | G8V |
| Apparent magnitude (B) | 13.58 |
| Apparent magnitude (R) | 12.17 |
| Apparent magnitude (I) | 11.35 |
| Apparent magnitude (J) | 10.911 |
| Apparent magnitude (H) | 10.602 |
| Apparent magnitude (K) | 10.481 |
| B−V color index | 1.3 |
| V−R color index | 0.1 |
| R−I color index | 0.82 |
| Variable type | planetary transit |
| Astrometry | |
| Proper motion (μ) | RA: −41.3 mas/yr Dec.: 16.5 mas/yr |
| Distance | 815 ly (250[1] pc) |
| Absolute magnitude (MV) | 5.3 |
| Details | |
| Mass | 0.95 M☉ |
| Radius | 0.93 R☉ |
| Luminosity | 0.71 L☉ |
| Temperature | 5500 K |
| Age | 600 million years |
| Other designations | |
|
WASP-19, GSC 08181-01711, GSC2 S1302222242, UCAC2 12190908, USNO-B1.0 0443-00193111, GSC2.3 S5NU000242, 2MASS J09534008-4539330, UCAC3 89-92022
|
|
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia |
data |
WASP-19 is a magnitude 12.3 star located in the Vela constellation of the southern hemisphere.[1] This star has been found to host a transiting hot Jupiter-type planet in tight orbit.
In December 2009 SuperWASP project announced that a hot Jupiter type extrasolar planet, WASP-19b, was orbiting very close to this star and with the shortest orbital period so far detected.[1]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| b | 1.168 (± 0.023) MJ | 0.01655 (± 0.00013) | 0.78884 (± 3e-07) | 0.0046 +0.0044 −0.0028 |