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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:16 
Transit: 12:14 
Sunset: 17:12
wb_twilight   (Civil Twilight)  
What's Visible Now • Tonight Timeline
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All Constellations » Canis Major » 

ο1 Canis Majoris (omicron1 Canis Majoris)

Below the horizon.  Rise: 17:33 | Tran: 21:14 | Set: 0:59
Alt: -1.34°   Az: 129.01°   Direction: South-East

ο1 Canis Majoris is a variable supergiant star of spectral class K2 in the constellation of Canis Major.

ο1 Canis Majoris visual magnitude is 3.87. Because of its moderate brightness, ο1 Canis Majoris 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 ο1 Canis Majoris (omicron1 Canis Majoris) star
DSS2 image of ο1 Canis Majoris. The red arrow shows the motion of ο1 Canis Majoris during the next 10000 years (-1.33 arcmin in Right Ascension and 2.17 arcmin in declination);

Celestial Coordinates

Apparent

06h 55m 10s
-24° 13’ 00”
20h 06m 22s
03h 01m 32s

J2000

06h 54m 07s
-24° 11’ 02”

Galactic Coordinates

234.98°
-10.21°

Finder Chart

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Finder chart for ο1 Canis Majoris (omicron1 Canis Majoris).

Magnitude, Color, Spectral Class

3.87
Supergiant

-5.04
K2I
3477K

The red dot in the diagram below shows where ο1 Canis Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ο1 Canis Majoris. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

ο1 Canis Majoris is distant 1,975.76 light years from the Sun and it is moving far from the Sun at the speed of 36 kilometers per second.

606.06
1,975.76
36 km/s
-0.008 arcsec/y
0.013"/y

Alternative Designations

ο1 Canis Majoris
(omicron1 Canis Majoris)
16 Canis Majoris
SAO172542
SAO172542

Visibility from Your Location

Today's ο1 Canis Majoris (omicron1 Canis Majoris) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 114.2°
Max altitude: 14.3°
Azimuth: 245.8°