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Proper NameNone
Bayer DesignationPsi1 Aquarii
Flamsteed Number91 Aquarii
HR (BSC)8841
Right Ascension23h 15m 54s
Declination-9° 5' 16"
Distance144 light years
44 parsecs
MagnitudeApparent: +4.2
Absolute: +0.9
Spectral ClassK1IIIe orange giant
Planets in this systemPsi1 Aquarii A b (91 Aquarii A b), gas giant
Optimum VisibilitySeptember / October
NotesPsi1 Aquarii is a triple star system. The main orange giant, Psi1 Aquarii A, is orbited by a binary pair of dwarf stars at a distance of more than 2,000 AU. In a much closer orbit, the giant star also appears to have a planetary companion, Psi1 Aquarii Ab, an object at least three times the mass of Jupiter.


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