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WASP-1
EntityQ13382725· pop 20· linked from 331 articles

Also known as TYC 2265-107-1, TIC 176899385, HAT-P-6, TOI-1373, Sterrennacht, BD+41 4831

WASP-1 is a magnitude 12 binary star system located about light-years away in the Andromeda constellation. 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.

Wikidata facts

Instance of
variable star
Constellation
Andromeda
Child body
WASP-1b
Distance from Earth
393.072
Radius
1.564
Mass
1.153
Image
WASP-1.jpg
Show 16 more facts
spectral class
F7
catalog code
TOI-6014
effective temperature
6116
radial velocity
-13.284
parallax
2.6108
apparent magnitude
11.532242
epoch
J2000.0
metallicity
0.21
stellar rotational velocity
3.66
surface gravity
20000
luminosity
2.8367422
right ascension component of proper motion
-4.692
declination component of proper motion
-3.32
right ascension
5.16697740369
declination
31.98998744711
age estimated by a dating method
3

via Wikidata · CC0

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Encyclopedic overview

5 sections
Contents
  • Stellar companion
  • Planetary system
  • See also
  • References
  • External links

WASP-1 is a magnitude 12 binary star system located about light-years away in the Andromeda constellation. 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 . 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. 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.

Excerpted from Wikipedia’s “WASP-1” article, available under the CC BY-SA 4.0 licence.