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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 6:31 
Transit: 12:56 
Sunset: 19:19
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All Constellations » Lacerta » 

2 Lacertae

Above the horizon.  Circumpolar today
Alt: 24.28°   Az: 315.59°   Direction: North-West

2 Lacertae is a variable and double main-sequence star of spectral class B6 in the constellation of Lacerta.

2 Lacertae visual magnitude is 4.57. Because of its moderate brightness, 2 Lacertae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of 2 Lacertae star
DSS2 image of 2 Lacertae. The red arrow shows the motion of 2 Lacertae during the next 10000 years (3.83 arcmin in Right Ascension and 0.83 arcmin in declination);

Celestial Coordinates

Apparent

22h 22m 03s
+46° 39’ 42”
07h 26m 39s
05h 48m 42s

J2000

22h 21m 01s
+46° 32’ 12”

Galactic Coordinates

97.79°
-8.86°

Finder Chart

Finder chart 2 Lacertae star
Simplified finder chart for 2 Lacertae.

Magnitude, Color, Spectral Class

4.57
Main-sequence

-1.40
B6V
11573K

The red dot in the diagram below shows where 2 Lacertae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 2 Lacertae. Attribution: Richard Powell / CC BY-SA

Star System Properties

2 Lacertae is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 2 Lacertae double sysyem:

4.57
10.97
6.4
48.2 arcsec

Distance, Radial Speed, Proper Motion

2 Lacertae is distant 509.38 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

156.25
509.38
-10 km/s
0.023 arcsec/y
0.005"/y

Alternative Designations

SAO51904
SAO51904

Visibility from Your Location

2 Lacertae is circumpolar and transits at 22:52 UTC (altitude: 85.2°)