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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:10 
Transit: 12:56 
Sunset: 20:42
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All Constellations » Microscopium » 

α Microscopii (alpha Microscopii)

Below the horizon.  Rise: 4:10 | Tran: 6:22 | Set: 8:34
Alt: -50.36°   Az: 83.07°   Direction: East

α Microscopii is a variable and double giant star of spectral class G7 in the constellation of Microscopium.

α Microscopii visual magnitude is 4.9. Because of its moderate brightness, α Microscopii 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 α Microscopii (alpha Microscopii) star
DSS2 image of α Microscopii. The red arrow shows the motion of α Microscopii during the next 10000 years (1.67 arcmin in Right Ascension and -4.17 arcmin in declination);

Celestial Coordinates

Apparent

20h 51m 32s
-33° 41’ 02”
15h 18m 13s
12h 09m 46s

J2000

20h 49m 58s
-33° 46’ 46”

Galactic Coordinates

9.88°
-38.26°

Finder Chart

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Finder chart for α Microscopii (alpha Microscopii).

Magnitude, Color, Spectral Class

4.9
Giant

-0.44
G7III
4743K

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

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

Star System Properties

α Microscopii is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the α Microscopii double sysyem:

4.9
9.9
5
20.5 arcsec

Distance, Radial Speed, Proper Motion

α Microscopii is distant 380.40 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

116.69
380.40
-15 km/s
0.01 arcsec/y
-0.025"/y

Alternative Designations

α Microscopii
(alpha Microscopii)
SAO212472
SAO212472

Visibility from Your Location

Today's α Microscopii (alpha Microscopii) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 123.7°
Max altitude: 4.8°
Azimuth: 236.3°