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Sarin

Delta Herculis, 65 Herculis

White Star in Hercules

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Proper Name	Sarin
Bayer Designation	Delta Herculis
Flamsteed Number	65 Herculis
HR (BSC)	6410
HD	156164
Constellation	Hercules
Right Ascension	17h 15m 2s
Declination	+24° 50' 21"
Distance	75 light years 23 parsecs
Magnitude	Apparent: +3.1 Absolute: +1.3
Spectral Class	A3IV White Subgiant (composite) G4IV-V Yellow Dwarf (Delta Herculis Ab component)
Optimum Visibility	June / July
Notes	The central star of the Sarin system is often categorised as a single white subgiant, but in fact this is a composite classification, and more recent analysis suggests that in fact the core of the system may consist of a pair of dwarf stars in a very close mutual orbit.

A system of stars a little over seventy-five light years from the Solar System, in the core of the constellation Hercules. The heart of the Sarin system appears to consist of a close binary pair, with at least one outer companion star, and possibly several others. Sarin was imagined as representing the shoulder of the hero Hercules represented by its home constellation.

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