HR4633

Below the horizon. Rise: 4:34 | Tran: 13:12 | Set: 21:50

Alt: -9.98° Az: 15.24° Direction: North-North-East

HR4633 is a variable main-sequence star of spectral class A4 in the constellation of Coma Berenices.

HR4633 visual magnitude is 6.01. Because of its faintness, HR4633 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 HR4633. The red arrow shows the motion of HR4633 during the next 10000 years (-1.50 arcmin in Right Ascension and -2.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 12m 01s

Declination +27° 08’ 38”

Hour Angle 13h 07m 39s

Sideral Time 01h 19m 41s

J2000

Right Ascension 12h 10m 46s

Declination +27° 16’ 53”

Galactic Coordinates

Galactic Longitude 209.63°

Galactic Latitude 80.96°

Finder Chart

Simplified finder chart for HR4633.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.01

Class Main-sequence

Absolute magnitude 1.14

Spectral Type A4V

Color Index (B-V) 0.11

Temperature 8932K

The red dot in the diagram below shows where HR4633 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4633. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4633 is distant 307.55 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 94.34

Distance (light year) 307.55

Radial Speed -9 km/s

Proper Motion RA -0.009 arcsec/y

Proper Motion Dec -0.014"/y

Alternative Designations

Henry Draper Catalogue HD105805

SAO Catalogue SAO82166

Hipparcos Catalogue HIP59364

Durchmusterung Catalogue BD+28 2084

General Catalogue of Variable Stars 5485

Visibility from Your Location

Today's HR4633 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.9° RISE 4:34

Max altitude: 65.7° TRANSIT 13:12

Azimuth: 297.1° SET 21:50

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

Location

Other stars in Coma Berenices