α Lacertae (alpha Lacertae)
α Lacertae is a double main-sequence star in the constellation of Lacerta.
α Lacertae visual magnitude is 3.77. Because of its moderate brightness, α Lacertae should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about α Lacertae:
Celestial coordinates and finder chart of α Lacertae
α Lacertae is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of α Lacertae are provided in the following table:
The simplified sky map below shows the position of α Lacertae in the sky:
Visibility of α Lacertae from your location
α Lacertae (alpha Lacertae) is circumpolar and transits at 20:41 UTC (altitude: 88.8°)
Digitized Sky Survey image of α Lacertae
The image below is a photograph of α Lacertae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of α Lacertae is 0.138 arcsec per year in Right Ascension and 0.019 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of α Lacertae from the Sun and relative movement
α Lacertae is distant 102.32 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.
Spectral properties of α Lacertae
α Lacertae belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where α Lacertae is situated in the Hertzsprung–Russell diagram.
α Lacertae star system properties
α 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 α Lacertae double sysyem: