We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
Help keep this site free and ads-free: donate now!
public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?

HR1644

Above the horizon.  Circumpolar today
Altitude: 47.9°   Azimuth: 75.6°   Direction: East-North-East

HR1644 is a bright giant star of spectral class F2 in the constellation of Auriga.

HR1644 visual magnitude is 6.2. Because of its faintness, HR1644 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.

Celestial coordinates and finder chart of HR1644

Finder chart HR1644 star
Simplified finder chart for HR1644.

HR1644 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 HR1644 are provided in the following table:

05h 06m 49s
+43° 10’ 28”
163.84°
1.49°
Auriga
Image of HR1644 star
DSS2 image of HR1644. The red arrow shows the motion of HR1644 during the next 100000 years (8.33 arcmin in Right Ascension and 0.00 arcmin in declination);

Key facts about HR1644

6.2
Bright giant

and has a luminosity class of II corresponding to a bright giant star.

-0.91
F2II
6724K

The red dot in the diagram below shows where HR1644 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1644. Attribution: Richard Powell / CC BY-SA

Distance of HR1644 from the Sun and relative movement

HR1644 is distant 860.16 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

263.85 pc
860.16 ly
-14 km/s
0.005 arcsec/year

Alternative designations of HR1644

SAO40029
SAO40029

Visibility of HR1644 from your location

HR1644 is circumpolar and transits at 11:02 UTC (altitude: 81.7°)