Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]

δ Mensae (delta Mensae)

δ Mensae is a variable giant star in the constellation of Mensa.

δ Mensae visual magnitude is 5.69. Because of its reltive faintness, δ Mensae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about δ Mensae:

δ Mensae (delta Mensae) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of δ Mensae

δ 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 δ Mensae are provided in the following table:

04h 17m 59s
-80° 12’ 50”

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

Finder chart δ Mensae (delta Mensae) star
Simplified finder chart for δ Mensae (delta Mensae).

Visibility of δ Mensae from your location

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

δ Mensae (delta Mensae) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of δ Mensae

The image below is a photograph of δ Mensae 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 δ Mensae is 0.018 arcsec per year in Right Ascension and 0.061 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of δ Mensae (delta Mensae) star
DSS2 image of δ Mensae. The red arrow shows the motion of δ Mensae during the next 10000 years (3.00 arcmin in Right Ascension and 10.17 arcmin in declination);

Distance of δ Mensae from the Sun and relative movement

δ Mensae is distant 407.50 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

125.00 pc
407.50 ly
-20 km/s
0.018 arcsec/year
0.061 arcsec/year

Spectral properties of δ Mensae

δ Mensae belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


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

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

Alternative designations of δ Mensae

δ Mensae
(delta Mensae)