θ2 Microscopii (theta2 Microscopii)

Below the horizon. Never rises today

Alt: -23.27° Az: 232.83° Direction: South-West

θ2 Microscopii is a multiple hypergiant star of spectral class A0 in the constellation of Microscopium.

θ2 Microscopii visual magnitude is 5.77. Because of its faintness, θ2 Microscopii 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 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);

Celestial Coordinates

Apparent

Right Ascension 21h 25m 58s

Declination -40° 53’ 56”

Hour Angle 05h 02m 19s

Sideral Time 02h 28m 18s

J2000

Right Ascension 21h 24m 24s

Declination -41° 00’ 24”

Galactic Coordinates

Galactic Longitude 0.89°

Galactic Latitude -45.64°

Finder Chart

Simplified finder chart for θ2 Microscopii (theta2 Microscopii).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.77

Class Hypergiant

θ2 Microscopii is also a Si chemically peculiar star.

Absolute magnitude 0.01

Spectral Type A0III

Color Index (B-V) -0.05

Temperature 10795K

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

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

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:

Main star magnitude 5.77

Secondary star magnitude 6.37

Magnitude difference 0.6

Separation 0.5 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 142.05

Distance (light year) 463.07

Radial Speed 11 km/s

Proper Motion RA 0.031 arcsec/y

Alternative Designations

Bayer designation θ2 Microscopii
(theta2 Microscopii)

Henry Draper Catalogue HD203585

SAO Catalogue SAO230667

Hipparcos Catalogue HIP105696

Durchmusterung Catalogue CD-4114503

Visibility from Your Location

θ2 Microscopii (theta2 Microscopii) is currently not visible from Greenwich, UK

Set Location

Other stars in Microscopium