Star profile
Theta Reticulum
Hot blue starWhat is Theta Reticulum
Theta Reticuli is a very young southern double: a B9 blue subgiant some 166 million years old, with three and a half times the Sun's mass, paired with a fainter Am sister orbiting at 4 arcseconds and sharing her distance and motion. She lives in Reticulum, a small grid of sky named by Lacaille in the 18th century. At 461 light-years, two points almost fused like drops of mercury.
Where it is and when to see it
Theta Reticulum lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is September: 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 Theta Reticulum
- Constellation
- Reticulum
- Apparent magnitude
- 5.88
- Distance
- 460.7 light years
- Coordinates (J2000)
- RA 64.418° · Dec -63.255°
- Catalogue
- HIP 20020 · HD 27657
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Reticulum
Reticulum has 16 stars in Stelvia's catalogue. Here are a few of them.
- Alpha Reticulum3.33
- Beta Reticulum3.84
- Epsilon Reticulum4.44
- Zeta 1 Reticulum5.53
- HIP 208255.74
- HIP 212535.79
- HIP 163685.81
- HIP 206195.94