Kelu-1
Sign in to saveAlso known as V421 Hydrae
Kelu-1 is a system of two brown dwarfs of spectral types L2 and L4 located in constellation Hydra at approximately 60.6 light-years from Earth. It is among the first free-floating later-than-M-type brown dwarfs discovered, and sometimes considered as prototype of L-type brown dwarfs.
Wikidata facts
- Constellation
- Hydra
- Distance from Earth
- 18.66
- Image
- Kelu-1 AB.jpg
Show 13 more facts
- spectral class
- L2
- catalog code
- Gaia DR3 6187779556809793024
- right ascension
- 196.41739050252740
- declination
- -25.68495287346310
- effective temperature
- 2100
- parallax
- 48.0
- apparent magnitude
- 11.747
- declination component of proper motion
- -12
- radial velocity
- 6.37
- epoch
- J2000.0
- stellar rotational velocity
- 68.88
- right ascension component of proper motion
- -310
- Commons category
- Kelu-1
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Encyclopedic overview
13 sectionsContents
- History of observations
- Discovery
- Inclusion to CE Catalog
- Assignment of spectral class
- 2nd component hypothesis
- 2nd component discovery
- 3rd component hypothesis
- X-rays and attempt of detection in radio
- Distance
- Early discoveries of brown dwarfs
- See also
- Notes
- References
Kelu-1 is a system of two brown dwarfs of spectral types L2 and L4 located in constellation Hydra at approximately 60.6 light-years from Earth. It is among the first free-floating later-than-M-type brown dwarfs discovered, and sometimes considered as prototype of L-type brown dwarfs.
==History of observations== thumb|left|A Infrared#Regions_within_the_infrared|near-infrared [[light curve for V421 Hydrae (Kelu-1), adapted from Clarke et al. (2002)]]
Excerpted from Wikipedia’s “Kelu-1” article, available under the CC BY-SA 4.0 licence.