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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
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All Constellations » Musca » 

α Muscae (alpha Muscae)

Below the horizon.  Never rises today
Alt: -61.00°   Az: 146.23°   Direction: South-East

α Muscae is a variable and double sub-giant star of spectral class B2 in the constellation of Musca.

α Muscae visual magnitude is 2.69. Because of its brightness, α Muscae is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of α Muscae (alpha Muscae) star
DSS2 image of α Muscae. The red arrow shows the motion of α Muscae during the next 10000 years (-8.00 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

12h 38m 43s
-69° 16’ 29”
15h 18m 21s
03h 57m 05s

J2000

12h 37m 10s
-69° 08’ 08”

Galactic Coordinates

301.66°
-6.3°

Finder Chart

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Finder chart for α Muscae (alpha Muscae).

Magnitude, Color, Spectral Class

2.69
Sub-giant

-2.17
B2IV
13585K

The red dot in the diagram below shows where α Muscae is situated in the Hertzsprung–Russell diagram.

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

Star System Properties

α Muscae 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 Muscae double sysyem:

2.69
12.79
10.1
29.6 arcsec

Distance, Radial Speed, Proper Motion

α Muscae is distant 305.53 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

93.72
305.53
13 km/s
-0.048 arcsec/y
-0.013"/y

Alternative Designations

α Muscae
(alpha Muscae)
SAO251974
SAO251974

Visibility from Your Location

α Muscae (alpha Muscae) is currently not visible from Greenwich, UK