θ Muscae (theta Muscae)
θ Muscae is a variable and double hypergiant star in the constellation of Musca.
θ Muscae visual magnitude is 5.51. Because of its reltive faintness, θ Muscae 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 Muscae is -0.016 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Key facts about θ Muscae
Celestial coordinates and finder chart of θ Muscae
θ Muscae 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 θ Muscae are provided in the following table:
The simplified sky map below shows the position of θ Muscae in the sky:
Visibility of θ Muscae from your location
Distance of θ Muscae from the Sun and relative movement
θ Muscae is distant 108,666.67 light years from the Sun and it is moving towards the Sun at the speed of 28 kilometers per second.
Spectral properties of θ Muscae
θ Muscae belongs to spectral class B0 and has a luminosity class of I corresponding to a hypergiant star.
The red dot in the diagram below shows where θ Muscae is situated in the Hertzsprung–Russell diagram.
θ Muscae star system properties
θ Muscae is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the θ Muscae double sysyem: