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Luyten 726-8

Gliese 65, LHS 9, BL Ceti (A), UV Ceti (B)

Red dwarf in Cetus

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Proper Name	None
Bayer Designation	None
Flamsteed Number	None
HR (BSC)	None
HD	None
Other Designations	Luyten 726-8, Gliese 65, LHS 9
Variable Designations	BL Ceti (A) UV Ceti (B)
Constellation	Cetus
Right Ascension	1h 39m 1s (A), 1h 39m 2s (B)
Declination	-17° 57' 2" (A), -17° 57' 1" (B)
Distance	8.9 light years / 2.7 parsecs (A) 8.7 light years / 2.7 parsecs (B)
Magnitude	Apparent: +12.80 Absolute: +15.63 (A), +15.66 (B)
Spectral Class	M5.5V red dwarf (A), M6V red dwarf (B)
Optimum Visibility	October / November

Imagery provided by Aladin sky atlas

A binary system consisting of two low-mass red dwarfs, individually designated BL Ceti and UV Ceti, in orbit around one another. This system, one of the closest to our own Sun at 8.7 light years, exhibits violent flaring activity from time to time.

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