μ Andromedae (mu Andromedae)

μ Andromedae is a multiple main-sequence star in the constellation of Andromeda.

μ Andromedae visual magnitude is 3.87. Because of its moderate brightness, μ 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 μ Andromedae:

Color of μ Andromedae ⬤

Magnitude of μ Andromedae 3.87

Class Main-sequence

VISIBILITY RIGHT NOW μ Andromedae (mu Andromedae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 63°.

Celestial coordinates and finder chart of μ Andromedae

μ 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 μ Andromedae are provided in the following table:

Right Ascension J2000 00h 56m 45s

Declination J2000 +38° 29’ 57”

Galactic Longitude 124.07°

Galactic Latitude -24.36°

Constellation Andromeda

The simplified sky map below shows the position of μ Andromedae in the sky:

Finder chart μ Andromedae (mu Andromedae) star

Simplified finder chart for μ Andromedae (mu Andromedae).

Visibility of μ Andromedae from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's μ Andromedae (mu Andromedae) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.5° RISE 1:06

Max altitude: 77.0° TRANSIT 12:53

Azimuth: 308.5° SET 0:44

RIGHT NOW μ Andromedae (mu Andromedae) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of μ Andromedae

The image below is a photograph of μ 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 μ Andromedae is 0.152 arcsec per year in Right Ascension and 0.033 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of μ Andromedae (mu Andromedae) star

DSS2 image of μ Andromedae. The red arrow shows the motion of μ Andromedae during the next 1000 years (2.53 arcmin in Right Ascension and 0.55 arcmin in declination);

Distance of μ Andromedae from the Sun and relative movement

μ Andromedae is distant 136.23 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

Distance (parsec) 41.79 pc

Distance (light year) 136.23 ly

Heliocentric radial velocity 8 km/s

Proper Motion RA 0.152 arcsec/year

Proper Motion Dec 0.033 arcsec/year

Spectral properties of μ Andromedae

μ Andromedae belongs to spectral class A5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.76

Spectral Type A5V

Color Index (B-V) 0.13

Temperature of μ Andromedae 8748K

The red dot in the diagram below shows where μ Andromedae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of μ Andromedae. Attribution: Richard Powell / CC BY-SA

μ Andromedae star system properties

μ Andromedae 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 μ Andromedae double sysyem:

Main star magnitude 3.87

Secondary star magnitude 10.67

Magnitude difference 6.8

Separation 266.7 arcsec

Alternative designations of μ Andromedae

Bayer designation μ Andromedae
(mu Andromedae)

Flamsteed designation 37 Andromedae

Henry Draper Catalogue HD5448

SAO Catalogue SAO54281

Hipparcos Catalogue HIP4436

Durchmusterung Catalogue BD+37 175

FK5 Catalogue 33

Aitken Double Star Catalogue ADS788

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Other stars in Andromeda