HR2501

Below the horizon. Rise: 5:12 | Tran: 7:55 | Set: 10:39

Alt: -22.60° Az: 111.86° Direction: East-South-East

HR2501 is a variable and double giant star of spectral class B2 in the constellation of Canis Major.

HR2501 visual magnitude is 5.8. Because of its faintness, HR2501 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 HR2501. The red arrow shows the motion of HR2501 during the next 10000 years (1.67 arcmin in Right Ascension and 0.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 06h 46m 27s

Declination -30° 58’ 34”

Hour Angle 18h 07m 55s

Sideral Time 00h 54m 23s

J2000

Right Ascension 06h 45m 31s

Declination -30° 56’ 56”

Galactic Coordinates

Galactic Longitude 240.5°

Galactic Latitude -14.73°

Finder Chart

Simplified finder chart for HR2501.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.8

Class Giant

Absolute magnitude -2.63

Spectral Type B2III

Color Index (B-V) -0.19

Temperature 13348K

The red dot in the diagram below shows where HR2501 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2501. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2501 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 HR2501 double sysyem:

Main star magnitude 5.8

Secondary star magnitude 8.1

Magnitude difference 2.3

Separation 4.9 arcsec

Distance, Radial Speed, Proper Motion

HR2501 is distant 1,582.52 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 485.44

Distance (light year) 1,582.52

Radial Speed 7 km/s

Proper Motion RA 0.01 arcsec/y

Proper Motion Dec 0.002"/y

Alternative Designations

Henry Draper Catalogue HD49131

SAO Catalogue SAO197177

Hipparcos Catalogue HIP32385

Durchmusterung Catalogue CD-30 3505

General Catalogue of Variable Stars HP CMa

Visibility from Your Location

Today's HR2501 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 121.0° RISE 5:12

Max altitude: 7.5° TRANSIT 7:55

Azimuth: 239.0° SET 10:39

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Canis Major