HR2839

Below the horizon. Rise: 12:31 | Tran: 16:28 | Set: 20:24

Alt: -1.24° Az: 125.12° Direction: South-East

HR2839 is a double supergiant star of spectral class A8 in the constellation of Canis Major.

HR2839 visual magnitude is 6.05. Because of its faintness, HR2839 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.

DSS2 image of HR2839. The red arrow shows the motion of HR2839 during the next 10000 years (-1.67 arcmin in Right Ascension and 0.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 07h 26m 25s

Declination -22° 02’ 04”

Hour Angle 19h 52m 21s

Sidereal Time 03h 18m 46s

J2000

Right Ascension 07h 25m 19s

Declination -21° 58’ 58”

Galactic Coordinates

Galactic Longitude 236.26°

Galactic Latitude -2.81°

Finder Chart

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Finder chart for HR2839.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.05

Class Supergiant

Absolute magnitude -3.89

Spectral Type A8I

Color Index (B-V) 0.23

Temperature 7938K

The red dot in the diagram below shows where HR2839 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2839. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2839 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 HR2839 double sysyem:

Main star magnitude 6.05

Secondary star magnitude 13.45

Magnitude difference 7.4

Separation 2.4 arcsec

Distance, Radial Speed, Proper Motion

HR2839 is distant 3,165.05 light years from the Sun and it is moving far from the Sun at the speed of 41 kilometers per second.

Distance (parsec) 970.87

Distance (light year) 3,165.05

Radial Speed 41 km/s

Proper Motion RA -0.01 arcsec/y

Proper Motion Dec 0.003"/y

Alternative Designations

Henry Draper Catalogue HD58585

SAO Catalogue SAO173691

Hipparcos Catalogue HIP36017

Durchmusterung Catalogue BD-21 1925

Visibility from Your Location

Today's HR2839 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.0° RISE 12:31

Max altitude: 16.5° TRANSIT 16:28

Azimuth: 248.0° SET 20:24

Set Location

Other stars in Canis Major