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public LocationGreenwich, UK
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?

73 Orionis

Above the horizon.  Rise: 6:08 | Tran: 13:11 | Set: 20:13
Altitude: 30.3°   Azimuth: 109.3°   Direction: East-South-East

73 Orionis is a bright giant star of spectral class B9 in the constellation of Orion.

73 Orionis visual magnitude is 5.33. Because of its faintness, 73 Orionis 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.

Celestial coordinates and finder chart of 73 Orionis

Finder chart 73 Orionis star
Simplified finder chart for 73 Orionis.

73 Orionis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 73 Orionis are provided in the following table:

06h 15m 45s
+12° 33’ 03”
Image of 73 Orionis star
DSS2 image of 73 Orionis. The red arrow shows the motion of 73 Orionis during the next 100000 years (-1.67 arcmin in Right Ascension and 1.67 arcmin in declination);

Key facts about 73 Orionis

Bright giant

and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where 73 Orionis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 73 Orionis. Attribution: Richard Powell / CC BY-SA

Distance of 73 Orionis from the Sun and relative movement

73 Orionis is distant 1,399.14 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

429.18 pc
1,399.14 ly
13 km/s
-0.001 arcsec/year
0.001 arcsec/year

Alternative designations of 73 Orionis


Visibility of 73 Orionis from your location

Today's 73 Orionis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 77.4°
Max altitude: 51.1°
Azimuth: 282.6°