Star profile
Zeta Sagitta
What is Zeta Sagitta
Zeta Sagittae is a multiple star in the small constellation of the Arrow, tucked just beneath Cygnus. At its heart sits an inner pair of two nearly identical white stars chasing each other on a strongly elongated 23.2-year orbit, so close together that on instrumental scales they are barely a hand-span apart. Sagitta is one of the tiniest figures in the sky, yet also among the oldest: it already appears in Ptolemy's catalogues in the second century.
Where it is and when to see it
Zeta 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: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.
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The signature wall
Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.
A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works
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A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.
Astronomical data for Zeta Sagitta
- Constellation
- Sagitta
- Apparent magnitude
- 5.01
- Distance
- 255.0 light years
- Coordinates (J2000)
- RA 297.244° · Dec 19.142°
- Catalogue
- HIP 97496 · HD 187362
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
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
- Eta Sagitta5.09
- 13 Sagitta5.33
- 11 Sagitta5.54
- 1 Sagitta5.65