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Proper Name	None
Bayer Designation	None
Flamsteed Number	18 Aquarii
HR (BSC)	8187
HD	203705
Constellation	Aquarius
Right Ascension	21h 24m 11s
Declination	-12° 52' 41"
Distance	155 light years 47 parsecs
Magnitude	Apparent: +5.6 Absolute: +2.1 (Variable)
Spectral Class	F0 Bright Yellow Dwarf
Optimum Visibility	August / September
Notes	18 Aquarii is a dwarf star somewhat hotter than the Sun (hence its bright yellow F-type classification). A star with no known companions, 18 Aquarii has a diameter more than twice that of the Sun, and is also rather more luminous, emitting more than twelve times as much light energy.

A star of the 'F' spectral classification, 18 Aquarii appears to be a large dwarf star, with a mass approaching that of a subgiant. Its magnitude is only +5.5, so many observers will have difficulty locating this star with the naked eye.

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