We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support helps us pay the server bills » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?
All Constellations » Microscopium » 

θ2 Microscopii (theta2 Microscopii)

Altitude: -3.4°   Azimuth: 191.0°   Direction: South

θ2 Microscopii is a multiple hypergiant star in the constellation of Microscopium.

θ2 Microscopii visual magnitude is 5.77. Because of its reltive faintness, θ2 Microscopii 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 θ2 Microscopii is 0.031 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of θ2 Microscopii (theta2 Microscopii) star
DSS2 image of θ2 Microscopii. The red arrow shows the motion of θ2 Microscopii during the next 10000 years (5.17 arcmin in Right Ascension and 0.00 arcmin in declination);

Key facts about θ2 Microscopii

5.77
Hypergiant

θ2 Microscopii (theta2 Microscopii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -3.4°
Azimuth: 191.0°
Direction: South

Celestial coordinates and finder chart of θ2 Microscopii

θ2 Microscopii is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of θ2 Microscopii are provided in the following table:

21h 24m 24s
-41° 00’ 24”
0.89°
-45.64°
Microscopium

The simplified sky map below shows the position of θ2 Microscopii in the sky:

Finder chart θ2 Microscopii (theta2 Microscopii) star
Simplified finder chart for θ2 Microscopii (theta2 Microscopii).

Visibility of θ2 Microscopii from your location

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

θ2 Microscopii (theta2 Microscopii) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of θ2 Microscopii from the Sun and relative movement

θ2 Microscopii is distant 463.07 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

142.05 pc
463.07 ly
11 km/s
0.031 arcsec/year

Spectral properties of θ2 Microscopii

θ2 Microscopii belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star. θ2 Microscopii is also a Si chemically peculiar star.

0.01
A0III
10795K

The red dot in the diagram below shows where θ2 Microscopii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of θ2 Microscopii. Attribution: Richard Powell / CC BY-SA

θ2 Microscopii star system properties

θ2 Microscopii 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 θ2 Microscopii double sysyem:

5.77
6.37
0.6
0.5 arcsec

Alternative designations of θ2 Microscopii

θ2 Microscopii
(theta2 Microscopii)
SAO230667
SAO230667