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Lerna

HAT-P-42, TOI-571

Yellow dwarf in Hydra

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Proper Name	Lerna
Bayer Designation	None
Flamsteed Number	None
HR (BSC)	None
HD	None
Other Designations	HAT-P-42, TOI-571
Constellation	Hydra
Right Ascension	9h 1m 23s
Declination	+6° 5' 50"
Distance	c.1,400 light years c.400 parsecs
Magnitude	Apparent: +12.17 Absolute: +4.09
Spectral Class	G3V yellow dwarf (probable)
Planets in this system	Iolaus (Lerna b, HAT-P-42 b), gas giant
Optimum Visibility	February

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Hydra (constellation)

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