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public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:26 
Transit: 12:55 
Sunset: 20:25
sunny   (Daytime)   What's Visible Now?

θ Mensae (theta Mensae)

Altitude: -44.6°   Azimuth: 168.0°   Direction: South-South-East

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

θ Mensae visual magnitude is 5.45. Because of its reltive faintness, θ Mensae should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of θ Mensae is -0.007 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

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);

Key facts about θ Mensae

5.45
Main-sequence

θ Mensae (theta Mensae) is below the horizon from Greenwich, United Kingdom.

Altitude: -44.6°
Azimuth: 168.0°
Direction: South-South-East

Celestial coordinates and finder chart of θ Mensae

θ Mensae is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of θ Mensae are provided in the following table:

06h 56m 34s
-79° 25’ 13”
291.11°
-26.4°
Mensa

The simplified sky map below shows the position of θ Mensae in the sky:

Finder chart θ Mensae (theta Mensae) star
Simplified finder chart for θ Mensae (theta Mensae).

Visibility of θ Mensae from your location

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

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

Distance of θ Mensae from the Sun and relative movement

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 pc
355.51 ly
6 km/s
-0.007 arcsec/year

Spectral properties of θ Mensae

θ Mensae belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.

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

Alternative designations of θ Mensae

θ Mensae
(theta Mensae)
SAO256355
SAO256355