Star profile
13 Sagitta
Variable starWhat is 13 Sagitta
13 Sagittae is an M-type red giant whose brightness varies slowly, a trait common to cold, evolved stars. It inhabits the tiny constellation of the Arrow, the third smallest in the sky, suspended between the Eagle and the Swan. Its light, emitted more than a thousand years ago, set out in the depths of the Middle Ages.
Where it is and when to see it
13 Sagitta lies in the northern 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 56° above the horizon.
- From New York it culminates about 67° above the horizon.
- From Sydney it culminates about 39° above the horizon.
It can be seen from anywhere north of 72° S.
It ranks no. 7 in brightness among the 14 stars of Sagitta in our catalogue. To find it, start from Gamma Sagitta, the brightest: it lies about 2° away (a fist at arm's length covers about 10°).
The light you see today left it about 1,000 years ago.
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Astronomical data for 13 Sagitta
- Constellation
- Sagitta
- Apparent magnitude
- 5.33
- Distance
- 1019.4 light years
- Coordinates (J2000)
- RA 300.014° · Dec 17.517°
- Catalogue
- HIP 98438 · HD 189577
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Other stars in Sagitta
Sagitta has 14 stars in Stelvia's catalogue. Here are a few of them.
- Gamma Sagitta3.51
- Delta Sagitta3.68
- ShamAlpha Sagitta4.39
- Beta Sagitta4.39
- Zeta Sagitta5.01
- Eta Sagitta5.09
- 11 Sagitta5.54
- 1 Sagitta5.65