Star profile
11 Sagitta
Hot blue starWhat is 11 Sagitta
11 Sagittae burns as a blue B-type star in the small figure of the Arrow, an almost straight asterism wedged between the Swan and the Eagle. From 455 light-years away, its magnitude 5.54 corresponds to a body far hotter and more luminous than the Sun, helping trace the silhouette of the celestial projectile. The light arriving tonight left its surface near 1570, when Tycho Brahe had just observed the supernova that would change his life.
Where it is and when to see it
11 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 55° above the horizon.
- From New York it culminates about 66° above the horizon.
- From Sydney it culminates about 39° above the horizon.
It can be seen from anywhere north of 73° S.
It ranks no. 8 in brightness among the 14 stars of Sagitta in our catalogue. To find it, start from Gamma Sagitta, the brightest: it lies about 3° away (a fist at arm's length covers about 10°).
The light you see today left it about 460 years ago.
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Astronomical data for 11 Sagitta
- Constellation
- Sagitta
- Apparent magnitude
- 5.54
- Distance
- 455.6 light years
- Coordinates (J2000)
- RA 299.439° · Dec 16.789°
- Catalogue
- HIP 98234 · HD 189090
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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
- Zeta Sagitta5.01
- Eta Sagitta5.09
- 13 Sagitta5.33
- 1 Sagitta5.65
- Epsilon Sagitta5.67