The Constellation Lacerta
Lacerta is a small northern constellation which appears highest in the midnight sky in the months around August.
It was introduced by the Polish astronomer Johannes Hevelius in 1690, filling an area of sky between Cygnus and Andromeda which lacks any bright stars.
Lacerta represents a lizard, though it only contains one star brighter than fourth magnitude. It is home to the open clusters NGC 7243 and NGC 7209, as well as the variable object BL Lac, the prototypical example of a blazar. Varying between magnitude 14 and 17, however, BL Lac is extremely faint and can only been seen through the largest amateur telescopes.
1690 (Hevelius)
0.5% of the sky
200.7 square degrees
Lacerta contains no Messier objects
The following constellations neighbor Lacerta: Andromeda, Cassiopeia, Cepheus, Cygnus, Pegasus.
Hover the pointer over the name of an object to highlight its position on the starchart to the right, or click to see more information.
| Stars | Open Clusters | Globular Clusters | Galaxies |
| α-Lac (mag 3.8) | NGC 7243 (mag 6.4) | NGC 7242 (mag 12.0) | |
| 1-Lac (mag 4.1) | NGC 7209 (mag 7.7) | NGC 7265 (mag 12.2) | |
| 5-Lac (mag 4.4) | IC 1434 (mag 9.0) | NGC 7248 (mag 12.5) | |
| β-Lac (mag 4.4) | IC 1442 (mag 9.1) | NGC 7250 (mag 13.1) | |
| 11-Lac (mag 4.5) | NGC 7245 (mag 9.2) | NGC 7223 (mag 13.4) | |
| HIP 109754 (mag 4.5) | NGC 7295 (mag 9.7) | NGC 7426 (mag 13.5) | |
| 6-Lac (mag 4.5) | NGC 7394 | NGC 7330 (mag 13.6) | |
| 2-Lac (mag 4.5) | NGC 7231 (mag 13.9) | ||
| 4-Lac (mag 4.6) | NGC 7240 (mag 14.2) | ||
| 9-Lac (mag 4.6) | NGC 7274 (mag 14.2) | ||
| 10-Lac (mag 4.9) | NGC 7379 (mag 14.3) | ||
| 15-Lac (mag 5.0) | NGC 7197 (mag 14.4) | ||
| HIP 113288 (mag 5.0) | NGC 7264 (mag 14.6) | ||
| HIP 109102 (mag 5.1) | NGC 7273 (mag 14.7) | ||
| 13-Lac (mag 5.1) | IC 5259 (mag 14.7) | ||
| HIP 111795 (mag 5.2) | IC 5180 (mag 14.7) | ||
| DD Lac (mag 5.2) | NGC 7276 (mag 14.9) | ||
| EW Lac (mag 5.3) | NGC 7228 (mag 14.9) | ||
| HIP 109521 (mag 5.4) | NGC 7227 (mag 14.9) | ||
| HIP 112731 (mag 5.4) | IC 5191 (mag 14.9) | ||
| HIP 109745 (mag 5.5) | NGC 7395 (mag 15.2) | ||
| EN Lac (mag 5.6) | NGC 7282 (mag 15.3) | ||
| 8-Lac (mag 5.7) | IC 1441 (mag 15.4) | ||
| HIP 109831 (mag 5.7) | IC 5193 (mag 15.5) | ||
| HIP 113222 (mag 5.7) | NGC 7263 (mag 15.6) | ||
| HIP 111362 (mag 5.7) | IC 5192 (mag 16.4) | ||
| HIP 113084 (mag 5.8) | |||
| HIP 112590 (mag 5.8) | |||
| HIP 112417 (mag 5.8) | |||
| HIP 111259 (mag 5.9) |
