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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sleep NighttimeWhat's Visible Now?
All Constellations » Canis Major » 

HR2855

Altitude: -1.8°   Azimuth: 233.9°   Direction: South-West

HR2855 is a variable hypergiant star in the constellation of Canis Major.

HR2855 visual magnitude is 5.61. Because of its reltive faintness, HR2855 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR2855 is -0.012 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR2855 star
DSS2 image of HR2855. The red arrow shows the motion of HR2855 during the next 10000 years (-2.00 arcmin in Right Ascension and 0.67 arcmin in declination);

Key facts about HR2855

5.61
Hypergiant

HR2855 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.8°
Azimuth: 233.9°
Direction: South-West

Celestial coordinates and finder chart of HR2855

HR2855 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 HR2855 are provided in the following table:

07h 26m 59s
-23° 05’ 09”
237.41°
-3°
Canis Major

The simplified sky map below shows the position of HR2855 in the sky:

Finder chart HR2855 star
Simplified finder chart for HR2855.

Visibility of HR2855 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's HR2855 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.1°
Max altitude: 15.4°
Azimuth: 246.9°

Distance of HR2855 from the Sun and relative movement

HR2855 is distant 1,417.39 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

434.78 pc
1,417.39 ly
25 km/s
-0.012 arcsec/year
0.004 arcsec/year

Spectral properties of HR2855

HR2855 belongs to spectral class B0 and has a luminosity class of IV corresponding to a hypergiant star.

-2.58
B0IV
12103K

The red dot in the diagram below shows where HR2855 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2855. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2855

SAO173752
SAO173752