Star profile
5 Lacerta
Cool red starWhat is 5 Lacerta
5 Lacertae is a colossal spectroscopic binary more than sixteen hundred light-years away, in a small constellation Hevelius drew as a lizard between Cygnus and Andromeda. Its primary is an orange-red supergiant of some 359 solar radii and twenty-five thousand solar luminosities; orbiting alongside it is a blue main-sequence star, on a period of just under 42 years. Its brightness drifts irregularly between magnitudes 4.4 and 4.6.
Where it is and when to see it
5 Lacerta lies in the northern 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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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 5 Lacerta
- Constellation
- Lacerta
- Apparent magnitude
- 4.34
- Distance
- 1647.5 light years
- Coordinates (J2000)
- RA 337.383° · Dec 47.707°
- Catalogue
- HIP 111022 · HD 213310
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Other stars in Lacerta
Lacerta has 36 stars in Stelvia's catalogue. Here are a few of them.
- Alpha Lacerta3.76
- 1 Lacerta4.14
- Beta Lacerta4.42
- HIP 1097544.50
- 11 Lacerta4.50
- 6 Lacerta4.52
- 2 Lacerta4.55
- 4 Lacerta4.55