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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
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All Constellations » Orion » 

ρ Orionis (rho Orionis)

Above the horizon.  Rise: 8:20 | Tran: 14:32 | Set: 20:45
Alt: 3.75°   Az: 90.07°   Direction: East

ρ Orionis is a variable and multiple hypergiant star of spectral class K0 in the constellation of Orion.

ρ Orionis visual magnitude is 4.46. Because of its moderate brightness, ρ Orionis 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 ρ Orionis (rho Orionis) star
DSS2 image of ρ Orionis. The red arrow shows the motion of ρ Orionis during the next 100000 years (1.67 arcmin in Right Ascension and -10.00 arcmin in declination);

Celestial Coordinates

Apparent

05h 14m 37s
+02° 53’ 21”
18h 09m 35s
23h 24m 12s

J2000

05h 13m 17s
+02° 51’ 39”

Galactic Coordinates

198.52°
-20.27°

Finder Chart

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Finder chart for ρ Orionis (rho Orionis).

Magnitude, Color, Spectral Class

4.46
Hypergiant

-0.65
K0III
4328K

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

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

Star System Properties

ρ Orionis 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 ρ Orionis double sysyem:

4.46
8.36
3.9
6.9 arcsec

Distance, Radial Speed, Proper Motion

ρ Orionis is distant 343.52 light years from the Sun and it is moving far from the Sun at the speed of 41 kilometers per second.

105.37
343.52
41 km/s
0.001 arcsec/y
-0.006"/y

Alternative Designations

ρ Orionis
(rho Orionis)
SAO112528
SAO112528

Visibility from Your Location

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

Azimuth: 87.1°
Max altitude: 41.4°
Azimuth: 272.9°