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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:44 
Transit: 13:02 
Sunset: 21:19
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All Constellations » Mensa » 

θ Mensae (theta Mensae)

Below the horizon.  Never rises today
Alt: -47.55°   Az: 195.11°   Direction: South-West

θ Mensae is a main-sequence star of spectral class B9 in the constellation of Mensa.

θ Mensae visual magnitude is 5.45. Because of its faintness, θ Mensae is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of θ Mensae (theta Mensae) star
DSS2 image of θ Mensae. The red arrow shows the motion of θ Mensae during the next 100000 years (-11.67 arcmin in Right Ascension and 0.00 arcmin in declination);

Celestial Coordinates

Apparent

06h 54m 55s
-79° 27’ 15”
04h 56m 14s
11h 51m 09s

J2000

06h 56m 34s
-79° 25’ 13”

Galactic Coordinates

291.11°
-26.4°

Finder Chart

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Finder chart for θ Mensae (theta Mensae).

Magnitude, Color, Spectral Class

5.45
Main-sequence

0.26
B9V
9542K

The red dot in the diagram below shows where θ Mensae is situated in the Hertzsprung–Russell diagram.

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

Distance, Radial Speed, Proper Motion

θ Mensae is distant 355.51 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

109.05
355.51
6 km/s
-0.007 arcsec/y

Alternative Designations

θ Mensae
(theta Mensae)
SAO256355
SAO256355

Visibility from Your Location

θ Mensae (theta Mensae) is currently not visible from Greenwich, UK