Star profile
15 Lacerta
Cool red starWhat is 15 Lacerta
15 Lacertae is one of the few bright stars in the Lizard, that discreet constellation winding between Cygnus and Andromeda. M-type, cool and reddish, it shows the colour of a distant ember some 325 light-years off. An aged giant —past the main sequence— casting a warm glow on a too-often forgotten corner of the autumn sky.
Where it is and when to see it
15 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, when it culminates around midnight.
- From London it never sets and culminates about 82° up.
- From New York it culminates about 87° above the horizon.
- From Sydney it culminates about 13° above the horizon.
It can be seen from anywhere north of 47° S.
It ranks no. 12 in brightness among the 36 stars of Lacerta in our catalogue. To find it, start from Alpha Lacerta, the brightest: it lies about 8° away (a fist at arm's length covers about 10°).
The light you see today left it about 330 years ago.
It opens in your browser. Free, no account, nothing to install.
Leave your signature on 15 Lacerta
Your name and a message go up on the map for everyone to read. Signing is free.
Without a lock, someone else can replace your signature. How the lock works
We'll ask for an email to confirm it's you, no password.
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 15 Lacerta
- Constellation
- Lacerta
- Apparent magnitude
- 4.95
- Distance
- 325.2 light years
- Coordinates (J2000)
- RA 343.008° · Dec 43.312°
- Catalogue
- HIP 112917 · HD 216397
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Lacerta
Lacerta has 36 stars in Stelvia's catalogue. Here are a few of them.
- Alpha Lacerta3.76
- 1 Lacerta4.14
- 5 Lacerta4.34
- 4 Lacerta4.55
- 9 Lacerta4.64
- 10 Lacerta4.89
- HIP 1132884.99
- HIP 1091025.09