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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
north SunriseRise: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sleep NighttimeWhat's Visible Now?
All Constellations » Ursa Major » 


Altitude: 36.9°   Azimuth: 15.7°   Direction: North-North-East

HR3633 is a giant star in the constellation of Ursa Major.

HR3633 visual magnitude is 6.55. Because of its reltive faintness, HR3633 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR3633:


HR3633 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 36.9°
Azimuth: 15.7°
Direction: North-North-East

Celestial coordinates and finder chart of HR3633

HR3633 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3633 are provided in the following table:

09h 14m 03s
+71° 39’ 20”
Ursa Major

The simplified sky map below shows the position of HR3633 in the sky:

Finder chart HR3633 star
Simplified finder chart for HR3633.

Visibility of HR3633 from your location

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

HR3633 is circumpolar and transits at 04:19 UTC (altitude: 69.8°)

Digitized Sky Survey image of HR3633

The image below is a photograph of HR3633 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR3633 is -0.028 arcsec per year in Right Ascension and -0.038 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3633 star
DSS2 image of HR3633. The red arrow shows the motion of HR3633 during the next 10000 years (-4.67 arcmin in Right Ascension and -6.33 arcmin in declination);

Distance of HR3633 from the Sun and relative movement

HR3633 is distant 469.06 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

143.88 pc
469.06 ly
6 km/s
-0.028 arcsec/year
-0.038 arcsec/year

Spectral properties of HR3633

HR3633 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3633 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3633. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3633