Star profile
Yed Posterior
Epsilon Ophiuchi · Ophiuchus
What is Yed Posterior
Yed Posterior is «the rear hand» in Arabic, the hand the mythical Ophiuchus extends to grasp the serpent's tail. It is a yellow star resembling the Sun but older and more swollen, 107 light-years away. Its warm, golden light crosses a distance that takes a little over a century to traverse: the same span that separates radio from the first artificial satellite.
Where it is and when to see it
Yed Posterior lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May: 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 Yed Posterior
- Constellation
- Ophiuchus
- Apparent magnitude
- 3.23
- Distance
- 106.5 light years
- Coordinates (J2000)
- RA 244.580° · Dec -4.693°
- Catalogue
- HIP 79882 · HD 146791
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Ophiuchus
Ophiuchus has 88 stars in Stelvia's catalogue. Here are a few of them.
- RasalhagueAlpha Ophiuchi2.08
- SabikEta Ophiuchi2.43
- Zeta Ophiuchi2.54
- Yed PriorDelta Ophiuchi2.73
- CebalraiBeta Ophiuchi2.76
- Kappa Ophiuchi3.19
- Theta Ophiuchi3.27
- Nu Ophiuchi3.32