θ1 Microscopii (theta1 Microscopii)

Below the horizon. Never rises today

Alt: -3.11° Az: 191.38° Direction: South-South-West

θ1 Microscopii is a variable star of spectral class A in the constellation of Microscopium.

θ1 Microscopii visual magnitude is 4.82. Because of its moderate brightness, θ1 Microscopii is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of θ1 Microscopii (theta1 Microscopii) star

DSS2 image of θ1 Microscopii. The red arrow shows the motion of θ1 Microscopii during the next 10000 years (11.50 arcmin in Right Ascension and -0.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 22m 22s

Declination -40° 42’ 02”

Hour Angle 01h 00m 16s

Sidereal Time 22h 22m 38s

J2000

Right Ascension 21h 20m 45s

Declination -40° 48’ 34”

Galactic Coordinates

Galactic Longitude 1.19°

Galactic Latitude -44.95°

Finder Chart

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Finder chart for θ1 Microscopii (theta1 Microscopii).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.82

Class

θ1 Microscopii is also a CrEuSr chemically peculiar star.

Absolute magnitude 1.03

Spectral Type A

Color Index (B-V) 0.02

Temperature 9882K

The red dot in the diagram below shows where θ1 Microscopii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of θ1 Microscopii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

θ1 Microscopii is distant 186.39 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 57.18

Distance (light year) 186.39

Radial Speed 2 km/s

Proper Motion RA 0.069 arcsec/y

Proper Motion Dec -0.005"/y

Alternative Designations

Bayer designation θ1 Microscopii
(theta1 Microscopii)

Henry Draper Catalogue HD203006

SAO Catalogue SAO230644

Hipparcos Catalogue HIP105382

Durchmusterung Catalogue CD-4114475

FK5 Catalogue 802

General Catalogue of Variable Stars The1 Mic

Visibility from Your Location

θ1 Microscopii (theta1 Microscopii) is currently not visible from Greenwich, UK

Set Location

Other stars in Microscopium