θ Geminorum (theta Geminorum)
θ Geminorum is a multiple giant star in the constellation of Gemini.
θ Geminorum visual magnitude is 3.6. Because of its moderate brightness, θ Geminorum should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.
The proper motion of θ Geminorum is -0.002 arcsec per year in Right Ascension and -0.048 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Key facts about θ Geminorum
θ Geminorum (theta Geminorum) is above the horizon from Greenwich, United Kingdom.
Altitude: 14.0°
Azimuth: 307.7°
Direction: North-West
Celestial coordinates and finder chart of θ Geminorum
θ Geminorum is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of θ Geminorum are provided in the following table:
The simplified sky map below shows the position of θ Geminorum in the sky:
Visibility of θ Geminorum from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's θ Geminorum (theta Geminorum) rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Distance of θ Geminorum from the Sun and relative movement
θ Geminorum is distant 196.50 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.
Spectral properties of θ Geminorum
θ Geminorum belongs to spectral class A3 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where θ Geminorum is situated in the Hertzsprung–Russell diagram.
θ Geminorum star system properties
θ Geminorum 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 θ Geminorum double sysyem: