We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Donate now and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sleep NighttimeWhat's Visible Now?
All Constellations » Ursa Major » 


Altitude: 31.1°   Azimuth: 37.6°   Direction: North-East

HR3747 is a main-sequence star in the constellation of Ursa Major.

HR3747 visual magnitude is 6.45. Because of its reltive faintness, HR3747 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 HR3747:


HR3747 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 31.1°
Azimuth: 37.6°
Direction: North-East

Celestial coordinates and finder chart of HR3747

HR3747 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3747 are provided in the following table:

09h 29m 47s
+55° 44’ 44”
Ursa Major

The simplified sky map below shows the position of HR3747 in the sky:

Finder chart HR3747 star
Simplified finder chart for HR3747.

Visibility of HR3747 from your location

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

HR3747 is circumpolar and transits at 04:58 UTC (altitude: 85.7°)

Digitized Sky Survey image of HR3747

The image below is a photograph of HR3747 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 HR3747 is -0.132 arcsec per year in Right Ascension and -0.033 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR3747 star
DSS2 image of HR3747. The red arrow shows the motion of HR3747 during the next 1000 years (-2.20 arcmin in Right Ascension and -0.55 arcmin in declination);

Distance of HR3747 from the Sun and relative movement

HR3747 is distant 144.57 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

44.35 pc
144.57 ly
10 km/s
-0.132 arcsec/year
-0.033 arcsec/year

Spectral properties of HR3747

HR3747 belongs to spectral class F3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3747 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3747. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3747