Star profile

Upsilon Aquarii

3D likeness based on its real data · class F · ~6,500 K

What is Upsilon Aquarii

Upsilon Aquarii is a binary system just 74 light-years away, formed by a yellow-white F-type star and a red dwarf companion. NASA has listed it among the «most accessible» stars for the future Habitable Worlds Observatory to search for potentially habitable planets in its neighbourhood. One of those close neighbours that the next generation of instruments is already sharpening its gaze upon.

Where it is and when to see it

Upsilon Aquarii lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is August, when it culminates around midnight.

From London it culminates about 18° above the horizon.
From New York it culminates about 29° above the horizon.
From Sydney it culminates about 77° above the horizon.

It can be seen from anywhere south of 69° N.

It ranks no. 41 in brightness among the 99 stars of Aquarius in our catalogue. To find it, start from Sadalsuud, the brightest: it lies about 22° away (a fist at arm's length covers about 10°).

The light you see today left it about 74 years ago.

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Astronomical data for Upsilon Aquarii

Constellation: Aquarius
Apparent magnitude: 5.21
Distance: 74.0 light years
Coordinates (J2000): RA 338.673° · Dec -20.708°
Catalogue: HIP 111449 · HD 213845

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Other stars in Aquarius

Aquarius has 99 stars in Stelvia's catalogue. Here are a few of them.

See all 99 stars in Aquarius