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Revati

Zeta Piscium, 86 Piscium

White subgiant in Pisces

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Proper Name	Revati (Zeta Piscium Aa)
Bayer Designation	Zeta Piscium
Flamsteed Number	86 Piscium
HR (BSC)	361 (A), 362 (B)
HD	7344 (A), 7345 (B)
Constellation	Pisces
Right Ascension	1h 13m 44s (A), 1h 13m 45s (B)
Declination	+7° 34' 31" (A), +7° 34' 42" (B)
Distance	133 light years / 41 parsecs (A) 132 light years / 41 parsecs (B)
Magnitude	Apparent: +5.19 (A), +6.10 (B) Absolute: +2.13 (A), +3.06 (B)
Spectral Class	A7IV white subgiant (A), F7V bright yellow dwarf (B)
Optimum Visibility	October

Although it appears as a single star to the naked eye, Zeta Piscium is in fact a complex multiple system. Zeta Piscium A is a binary pair of white stars, with the more massive of the two given the proper name Revati. Meanwhile Zeta Piscium B is a triple system, with a lower-mass outer star (Zeta Piscium C) orbiting an inner binary.

The two primary stars in the Zeta Piscium system are sufficiently widely separated that they can be seen as two separate but overlaid objects in this image. Zeta Piscium A is the brighter of the two, to the west and south (or lower right), and it is the more massive of the two stars in this binary pair (Zeta Piscium Aa) that formally holds the name Revati. The slightly fainter Zeta Piscium B, to the east and north (or upper left), is also a binary system, with a third component known as Zeta Piscium C. Imagery provided by Aladin sky atlas

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