Star profile

Omicron Sagittarii

3D likeness based on its real data · class K · ~4,200 K

What is Omicron Sagittarii

Omicron Sagittarii shines toward the galactic center, where clouds of dust and stellar swarms gather behind the Archer. It is an orange K-type giant about 142 light-years away, an aged star that has left the main sequence and slowly inflates. Its light, crossing one of the Milky Way's densest regions, arrives serene in the skies of summer.

Where it is and when to see it

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

From London it culminates about 17° above the horizon.
From New York it culminates about 28° above the horizon.
From Sydney it culminates about 78° above the horizon.

It can be seen from anywhere south of 68° N.

It ranks no. 12 in brightness among the 117 stars of Sagittarius in our catalogue. To find it, start from Kaus Australis, the brightest: it lies about 15° away (a fist at arm's length covers about 10°).

The light you see today left it about 140 years ago.

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Astronomical data for Omicron Sagittarii

Constellation: Sagittarius
Apparent magnitude: 3.76
Distance: 142.1 light years
Coordinates (J2000): RA 286.171° · Dec -21.741°
Catalogue: HIP 93683 · HD 177241

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Other stars in Sagittarius

Sagittarius has 117 stars in Stelvia's catalogue. Here are a few of them.

See all 117 stars in Sagittarius