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.
In the Vinony graph
Vinony's link graph records 196 inbound references to Kelu-1, and connects out to list of stars in Hydra, The Astrophysical Journal and stellar classification.
Vinony files it under Astronomical objects discovered in 1997, Astronomical objects discovered in 2005 and Binary stars.
Vinony links it to 5 Wikipedia language editions.
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
via Wikidata · CC0
~10 min read
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.