WASP-1
File:WASP-1.jpg Telescope photo of WASP-1 | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 11.68 ± 0.05[3] |
| Characteristics | |
| WASP-1A | |
| Evolutionary stage | main-sequence star |
| Spectral type | F7V[4] |
| Apparent magnitude (B) | ~12.0[5] |
| Apparent magnitude (V) | 11.68 ± 0.05[3] |
| WASP-1B | |
| Apparent magnitude (H) | 15.130 ± 0.046[6] |
| Apparent magnitude (K) | 15.116 ± 0.055[6] |
| Astrometry | |
| WASP-1A | |
| Radial velocity (Rv) | Script error: No such module "val".[2] km/s |
| Proper motion (μ) | RA: Script error: No such module "val". mas/yr[2] Dec.: Script error: No such module "val". mas/yr[2] |
| Parallax (π) | 2.6108±0.0218 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | Script error: No such module "val".[3] |
| Details[3] | |
| WASP-1A | |
| Mass | Script error: No such module "val". Template:Solar mass |
| Radius | Script error: No such module "val". Template:Solar radius |
| Luminosity | Script error: No such module "val". Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val". cgs |
| Temperature | Script error: No such module "val". K |
| Metallicity [Fe/H] | Script error: No such module "val". dex |
| Age | Script error: No such module "val". Gyr |
| WASP-1B | |
| Mass | ~0.3[6]Template:Rp Template:Solar mass |
| Surface gravity (log g) | ~4.97[6]Template:Rp cgs |
| Temperature | ~3400[6]Template:Rp K |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Position (relative to WASP-1A)[6]Template:Rp | |
| Component | WASP-1B |
| Epoch of observation | 2013–2014 |
| Angular distance | ~4.58″ |
| Position angle | ~1.9° |
| Projected separation | Script error: No such module "val". AU |
| Other designations | |
| Template:Odlist[5] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Script error: No such module "Check for unknown parameters".
WASP-1 is a magnitude 12 binary star system located about 1,250 light-years away[2] in the Andromeda constellation.[7] The binary system consists of a metal-rich F-type main-sequence star, named WASP-1A, and a distant low-mass star, named WASP-1B. WASP-1A has one known transiting hot Jupiter exoplanet named WASP-1b.
Stellar companion
WASP-1A has a distant companion star, named WASP-1B. WASP-1B is a low-mass star that is around 0.3 times as massive as the Sun and has an effective temperature of about Script error: No such module "val"..[6]Template:Rp WASP-1B is located northward of WASP-1A at an angular separation of about 4.6 arcseconds, corresponding to a projected distance of 1587 AU.[6]Template:Rp WASP-1B was first identified in observations from 2006 and confirmed in further observations from 2012 to 2014, which showed that it shares the proper motion of WASP-1A, indicating the two stars are gravitationally bound to each other.[6]Template:Rp
Planetary system
In 2006, an extrasolar planet was discovered by the Wide Angle Search for Planets team using the transit method.[4] The planet has a density of 0.31 to 0.40 g/cm3, making it about half as dense as Saturn, and one third as dense as water. The orbit of WASP-1b is inclined to the rotational axis of the star by 79.0Script error: No such module "Su". degrees, making it a nearly "polar" orbit.[8]
Two searches for additional planets using transit-timing variations have yielded negative results.[9][10]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet
|}Script error: No such module "Check for unknown parameters".
See also
References
<templatestyles src="Reflist/styles.css" />
- ↑ Template:Cite constellation
- ↑ a b c d e f Template:Cite DR3
- ↑ a b c d Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b Template:Cite simbad
- ↑ a b c d e f g h i Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
<ref> tag with name "Bonomo2017" defined in <references> is not used in prior text.Script error: No such module "Check for unknown parameters".
External links
- Script error: No such module "citation/CS1".
- Image WASP 1