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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:51  
clear_day Transit: 12:57  
SunsetSet: 20:04
sunny DaytimeWhat's Visible Now?
All Constellations » Vela » 


Altitude: -16.7°   Azimuth: 158.4°   Direction: South-South-East

HR3631 is a giant star in the constellation of Vela.

HR3631 visual magnitude is 6.73. Because of its reltive faintness, HR3631 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR3631 is -0.004 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR3631 star
DSS2 image of HR3631. The red arrow shows the motion of HR3631 during the next 100000 years (-6.67 arcmin in Right Ascension and 0.00 arcmin in declination);

Key facts about HR3631


HR3631 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -16.7°
Azimuth: 158.4°
Direction: South-South-East

Celestial coordinates and finder chart of HR3631

HR3631 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3631 are provided in the following table:

09h 07m 14s
-51° 12’ 42”

The simplified sky map below shows the position of HR3631 in the sky:

Finder chart HR3631 star
Simplified finder chart for HR3631.

Visibility of HR3631 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR3631 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3631 from the Sun and relative movement

HR3631 is distant 1,873.56 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

574.71 pc
1,873.56 ly
7 km/s
-0.004 arcsec/year

Spectral properties of HR3631

HR3631 belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3631 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3631. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3631