σ Andromedae (sigma Andromedae)
σ Andromedae is a variable main-sequence star in the constellation of Andromeda.
σ Andromedae visual magnitude is 4.52. Because of its moderate brightness, σ Andromedae 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 σ Andromedae:
Celestial coordinates and finder chart of σ Andromedae
σ Andromedae 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 σ Andromedae are provided in the following table:
The simplified sky map below shows the position of σ Andromedae in the sky:
Visibility of σ Andromedae from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's σ Andromedae (sigma Andromedae) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of σ Andromedae
The image below is a photograph of σ Andromedae 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 σ Andromedae is -0.063 arcsec per year in Right Ascension and -0.041 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of σ Andromedae from the Sun and relative movement
σ Andromedae is distant 141.06 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.
Spectral properties of σ Andromedae
σ Andromedae belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where σ Andromedae is situated in the Hertzsprung–Russell diagram.