HR2800

Below the horizon. Rise: 22:52 | Tran: 2:16 | Set: 5:36

Alt: -64.16° Az: 337.03° Direction: North-North-West

HR2800 is a variable and double main-sequence star of spectral class B2 in the constellation of Canis Major.

HR2800 visual magnitude is 6.01. Because of its faintness, HR2800 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 HR2800. The red arrow shows the motion of HR2800 during the next 10000 years (1.67 arcmin in Right Ascension and 3.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 07h 21m 55s

Declination -27° 00’ 42”

Hour Angle 11h 15m 58s

Sidereal Time 18h 37m 54s

J2000

Right Ascension 07h 20m 54s

Declination -26° 57’ 48”

Galactic Coordinates

Galactic Longitude 240.2°

Galactic Latitude -6.03°

Finder Chart

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Finder chart for HR2800.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.01

Class Main-sequence

Absolute magnitude -2.70

Spectral Type B2V

Color Index (B-V) -0.17

Temperature 12902K

The red dot in the diagram below shows where HR2800 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2800. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2800 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 HR2800 double sysyem:

Main star magnitude 6.01

Secondary star magnitude 13.21

Magnitude difference 7.2

Separation 8.2 arcsec

Distance, Radial Speed, Proper Motion

HR2800 is distant 1,801.10 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

Distance (parsec) 552.49

Distance (light year) 1,801.10

Radial Speed 18 km/s

Proper Motion RA 0.01 arcsec/y

Proper Motion Dec 0.019"/y

Alternative Designations

Henry Draper Catalogue HD57593

SAO Catalogue SAO173522

Hipparcos Catalogue HIP35611

Durchmusterung Catalogue CD-26 4223

General Catalogue of Variable Stars HQ CMa

Aitken Double Star Catalogue ADS6015

Visibility from Your Location

Today's HR2800 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 117.0° RISE 22:52

Max altitude: 11.5° TRANSIT 2:16

Azimuth: 243.0° SET 5:36

Set Location

Other stars in Canis Major