HR2309

Above the horizon. Rise: 11:04 | Tran: 15:55 | Set: 20:46

Alt: 24.60° Az: 166.38° Direction: South-South-East

HR2309 is a double main-sequence star of spectral class B5 in the constellation of Canis Major.

HR2309 visual magnitude is 6.12. Because of its faintness, HR2309 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 HR2309. The red arrow shows the motion of HR2309 during the next 10000 years (-2.00 arcmin in Right Ascension and -2.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 06h 25m 30s

Declination -12° 58’ 40”

Hour Angle 23h 09m 14s

Sidereal Time 05h 34m 45s

J2000

Right Ascension 06h 24m 20s

Declination -12° 57’ 45”

Galactic Coordinates

Galactic Longitude 221.58°

Galactic Latitude -11.8°

Finder Chart

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Finder chart for HR2309.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.12

Class Main-sequence

Absolute magnitude -2.73

Spectral Type B5V

Color Index (B-V) -0.08

Temperature 11247K

The red dot in the diagram below shows where HR2309 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2309. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2309 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 HR2309 double sysyem:

Main star magnitude 6.12

Secondary star magnitude 10.52

Magnitude difference 4.4

Separation 23.2 arcsec

Distance, Radial Speed, Proper Motion

HR2309 is distant 1,917.65 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

Distance (parsec) 588.24

Distance (light year) 1,917.65

Radial Speed 8 km/s

Proper Motion RA -0.012 arcsec/y

Proper Motion Dec -0.012"/y

Alternative Designations

Henry Draper Catalogue HD44996

SAO Catalogue SAO151461

Hipparcos Catalogue HIP30468

Durchmusterung Catalogue BD-12 1470

Aitken Double Star Catalogue ADS5030

Visibility from Your Location

Today's HR2309 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 103.0° RISE 11:04

Max altitude: 25.5° TRANSIT 15:55

Azimuth: 257.0° SET 20:46

Set Location

Other stars in Canis Major