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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
sunny   (Daytime)   What's Visible Now?
All Constellations » Orion » 

45 Orionis

Above the horizon.  Rise: 4:48 | Tran: 10:22 | Set: 15:56
Alt: 33.55°   Az: 174.66°   Direction: South

45 Orionis is a multiple hypergiant star of spectral class F0 in the constellation of Orion.

45 Orionis visual magnitude is 5.26. Because of its faintness, 45 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.

Image of 45 Orionis star
DSS2 image of 45 Orionis. The red arrow shows the motion of 45 Orionis during the next 10000 years (1.50 arcmin in Right Ascension and 1.83 arcmin in declination);

Celestial Coordinates

Apparent

05h 36m 52s
-04° 50’ 30”
23h 42m 09s
05h 19m 01s

J2000

05h 35m 39s
-04° 51’ 20”

Galactic Coordinates

208.55°
-19.06°

Finder Chart

Finder chart 45 Orionis star
Simplified finder chart for 45 Orionis.

Magnitude, Color, Spectral Class

5.26
Hypergiant

-0.02
F0III
7866K

The red dot in the diagram below shows where 45 Orionis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 45 Orionis. Attribution: Richard Powell / CC BY-SA

Star System Properties

45 Orionis 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 45 Orionis double sysyem:

5.26
14.26
9
19.1 arcsec

Distance, Radial Speed, Proper Motion

45 Orionis is distant 370.45 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

113.64
370.45
-9 km/s
0.009 arcsec/y
0.011"/y

Alternative Designations

SAO132336
SAO132336

Visibility from Your Location

Today's 45 Orionis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 94.8°
Max altitude: 33.7°
Azimuth: 265.2°