WASP-2
Sign in to saveWASP-2 is a binary star system located about 496 light-years away in the Delphinus constellation. The primary is a magnitude 12 orange dwarf star, orbited by a red dwarf star on a wide orbit. The star system shows an infrared excess noise of unknown origin.
Wikidata facts
- Constellation
- Delphinus
- Distance from Earth
- 153.894
- Diameter
- 1110000
- Radius
- 0.9076521
Show 16 more facts
- spectral class
- K1.5+M1V-M4V
- catalog code
- Gaia DR2 1748596020745038208
- right ascension
- 307.72553300783835
- declination
- 6.42953840608139
- effective temperature
- 4994.2
- apparent magnitude
- 9.632
- radial velocity
- -28.09
- parallax
- 6.4980
- epoch
- J2000.0
- metallicity
- -0.06
- stellar rotational velocity
- 1.2
- surface gravity
- 38110
- luminosity
- 0.46173984
- right ascension component of proper motion
- 5.936
- declination component of proper motion
- -48.279
- age estimated by a dating method
- 7.6
Sources (2)
via Wikidata · CC0
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Encyclopedic overview
6 sectionsContents
- Binary star
- Planetary system
- See also
- Notes
- References
- External links
WASP-2 is a binary star system located about 496 light-years away in the Delphinus constellation. The primary is a magnitude 12 orange dwarf star, orbited by a red dwarf star on a wide orbit. The star system shows an infrared excess noise of unknown origin.
The primary star hosts one known exoplanet, WASP-2b. Since the planet transits the star, the star is classified as a planetary transit variable and has received the variable star designation V357 Delphini.
Excerpted from Wikipedia’s “WASP-2” article, available under the CC BY-SA 4.0 licence.