HR4751

Below the horizon. Rise: 5:03 | Tran: 13:30 | Set: 21:56

Alt: -7.47° Az: 29.69° Direction: North-North-East

HR4751 is a multiple main-sequence star of spectral class A in the constellation of Coma Berenices.

HR4751 visual magnitude is 6.65. Because of its faintness, HR4751 is not visible to the naked eye.

DSS2 image of HR4751. The red arrow shows the motion of HR4751 during the next 10000 years (-3.00 arcmin in Right Ascension and -3.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 29m 58s

Declination +25° 45’ 45”

Hour Angle 14h 12m 10s

Sideral Time 02h 42m 09s

J2000

Right Ascension 12h 28m 44s

Declination +25° 53’ 57”

Galactic Coordinates

Galactic Longitude 225.26°

Galactic Latitude 84.78°

Finder Chart

Simplified finder chart for HR4751.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.65

Class Main-sequence

HR4751 is also a so called metallic star.

Absolute magnitude 2.16

Spectral Type AV

Color Index (B-V) 0.22

Temperature 8011K

The red dot in the diagram below shows where HR4751 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4751. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4751 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4751 double sysyem:

Main star magnitude 6.65

Secondary star magnitude 8.05

Magnitude difference 1.4

Separation 145.4 arcsec

Distance, Radial Speed, Proper Motion

HR4751 is distant 257.50 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

Distance (parsec) 78.99

Distance (light year) 257.50

Radial Speed -2 km/s

Proper Motion RA -0.018 arcsec/y

Proper Motion Dec -0.021"/y

Alternative Designations

Henry Draper Catalogue HD108651

SAO Catalogue SAO82328

Hipparcos Catalogue HIP60891

Durchmusterung Catalogue BD+26 2353

Aitken Double Star Catalogue ADS8568

Visibility from Your Location

Today's HR4751 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 64.2° RISE 5:03

Max altitude: 64.3° TRANSIT 13:30

Azimuth: 295.8° SET 21:56

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

Location

Other stars in Coma Berenices