WASP-3
From Infogalactic: the planetary knowledge core
(Redirected from WASP-3c)
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Lyra |
| Right ascension | 18h 34m 31.6249s[1] |
| Declination | +35° 39′ 41.546″[1] |
| Apparent magnitude (V) | +10.485[1] |
| Characteristics | |
| Spectral type | F7V[1] |
| Apparent magnitude (B) | ~11.01[1] |
| Apparent magnitude (V) | ~10.485[1] |
| Apparent magnitude (J) | 9.603±0.020[1] |
| Apparent magnitude (H) | 9.407±0.014[1] |
| Apparent magnitude (K) | 9.361±0.015[1] |
| Variable type | V*(1SWASP)[1] |
| Astrometry | |
| Proper motion (μ) | RA: -5.20[1] mas/yr Dec.: -23.10[1] mas/yr |
| Distance | 727 ly (223 pc) |
| Details | |
| Mass | 1.24 −0.11+0.06 M☉ |
| Radius | 1.31 −0.12+0.06 R☉ |
| Temperature | 6400 ±100 K |
| Metallicity | 0 (±0.2 |
| Other designations | |
|
TYC 2636-195-1, 2MASS J18343163+3539415, USNO-B1.0 1256-00285133
|
|
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia |
data |
WASP-3 is a magnitude 10 yellow-white dwarf star located about 727 light-years away in the Lyra constellation.[1] It appears to be variable; it "passed from a less active (log R'_hk=-4.95) to a more active (log R'_hk=-4.8) state between 2007 and 2010".[2]
Planetary system
The extrasolar planet WASP-3b was detected by the SuperWASP project in 2007.[3] The William Herschel Telescope had confirmed it was a planet by 2008.
In 2010, researchers proposed a second planet orbiting WASP-3.[4][5] But in 2012 this proposal was debunked.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 2.06 ± 0.13 MJ | 0.0313 ± 0.0001 | 1.8468372 ± 6e-07 | 0 | — | — |
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Planet found tugging on transits, Astronomy Now, 9 July 2010
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
