KELT-2A
Sign in to saveAlso known as HD 42176
KELT-2 (also called HD 42176) is a binary star located about 439 light-years away in the constellation Auriga. The apparent magnitude of the system is 8.68, which means it is not visible to the naked eye but can be seen with binoculars. The system is moving towards the Sun at over 40 km/s.
Astronomical data · SIMBAD
- Object type
- *
- Spectral type
- F7V
- Distance
- 439 light-years
- Redshift
- z = -0.00015856046450601902
- Coordinates
- RA 92.6639° · Dec 30.9571°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Auriga
- Distance from Earth
- 128.9
- Radius
- 1.842
- Mass
- 1.31
Show 15 more facts
- catalog code
- TYC 2420-899-1
- effective temperature
- 6148
- parallax
- 7.4327
- apparent magnitude
- 7.669
- radial velocity
- -47.539
- epoch
- J2000.0
- metallicity
- 0.03
- spectral class
- F8
- surface gravity
- 11700
- luminosity
- 4.8854346
- right ascension component of proper motion
- 16.726
- declination component of proper motion
- -2.155
- age estimated by a dating method
- 3.97
- right ascension
- 92.66393860111
- declination
- 30.95714261463001
Sources (1)
via Wikidata · CC0
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Encyclopedic overview
5 sectionsContents
- Description
- Planetary system
- See also
- References
- External links
KELT-2 (also called HD 42176) is a binary star located about 439 light-years away in the constellation Auriga. The apparent magnitude of the system is 8.68, which means it is not visible to the naked eye but can be seen with binoculars. The system is moving towards the Sun at over 40 km/s.
==Description== KELT-2A is the primary star in the common-proper-motion binary star system KELT-2 (HD 42176). It is an F-type main sequence star about 1.314 times as massive as the sun. It has about 1.84 times the Sun's radius and radiates 3.5 times the Sun's luminosity at a temperature of about 6148 K. It is 3.97 billion years old and has a rotational velocity of around 9 km/s. KELT-2B is an early K dwarf approximately 295 AU away, which was discovered simultaneously with the planet KELT-2Ab in 2012. It has 78% of the Sun's mass, 70% of its radius, and an effective temperature of .
Excerpted from Wikipedia’s “KELT-2A” article, available under the CC BY-SA 4.0 licence.