HR2481

Above the horizon. Rise: 4:23 | Tran: 8:16 | Set: 12:10

Alt: 10.16° Az: 148.07° Direction: South-South-East

HR2481 is a variable and double hypergiant star of spectral class F0 in the constellation of Canis Major.

HR2481 visual magnitude is 6.13. Because of its faintness, HR2481 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 HR2481. The red arrow shows the motion of HR2481 during the next 10000 years (-14.17 arcmin in Right Ascension and 13.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 06h 43m 48s

Declination -22° 28’ 29”

Hour Angle 21h 42m 51s

Sideral Time 04h 26m 39s

J2000

Right Ascension 06h 42m 45s

Declination -22° 26’ 57”

Galactic Coordinates

Galactic Longitude 232.26°

Galactic Latitude -11.84°

Finder Chart

Simplified finder chart for HR2481.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.13

Class Hypergiant

Absolute magnitude 2.68

Spectral Type F0

Color Index (B-V) 0.34

Temperature 7217K

The red dot in the diagram below shows where HR2481 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2481. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2481 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 HR2481 double sysyem:

Main star magnitude 6.13

Secondary star magnitude 8.23

Magnitude difference 2.1

Separation 18.2 arcsec

Distance, Radial Speed, Proper Motion

HR2481 is distant 159.41 light years from the Sun and it is moving far from the Sun at the speed of 44 kilometers per second.

Distance (parsec) 48.90

Distance (light year) 159.41

Radial Speed 44 km/s

Proper Motion RA -0.085 arcsec/y

Proper Motion Dec 0.078"/y

Alternative Designations

Henry Draper Catalogue HD48501

SAO Catalogue SAO172204

Hipparcos Catalogue HIP32144

Durchmusterung Catalogue BD-22 1505

General Catalogue of Variable Stars 3181

Aitken Double Star Catalogue ADS5377

Visibility from Your Location

Today's HR2481 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.5° RISE 4:23

Max altitude: 16.0° TRANSIT 8:16

Azimuth: 247.5° SET 12:10

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

Location

Other stars in Canis Major