Star profile

Terebellum

Omega Sagittarii · Sagittarius

3D likeness based on its real data · class G · ~5,500 K

What is Terebellum

Terebellum forms, together with three other neighbouring stars, a small quadrilateral on the rump of Sagittarius that the ancient Romans called precisely «Terebellum», «the little square». It is a yellow G-type star 85 light-years away, similar in colour to the Sun but somewhat more evolved. The constellation that hosts it is dense and rich in stars: aiming toward it means leaning into one of the most travelled visual avenues of the northern summer sky.

Where it is and when to see it

Terebellum 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 12° above the horizon.
From New York it culminates about 23° above the horizon.
From Sydney it culminates about 82° above the horizon.

It can be seen from anywhere south of 64° N.

It ranks no. 28 in brightness among the 117 stars of Sagittarius in our catalogue. To find it, start from Kaus Australis, the brightest: it lies about 21° away (a fist at arm's length covers about 10°).

The light you see today left it about 85 years ago.

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Astronomical data for Terebellum

Constellation: Sagittarius
Apparent magnitude: 4.70
Distance: 84.8 light years
Coordinates (J2000): RA 298.960° · Dec -26.300°
Catalogue: HIP 98066 · HD 188376

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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