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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
sunny DaytimeWhat's Visible Now?
All Constellations » Lynx » 


Altitude: 16.0°   Azimuth: 331.2°   Direction: North-North-West

HR2645 is a giant star in the constellation of Lynx.

HR2645 visual magnitude is 6.38. Because of its reltive faintness, HR2645 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 HR2645:


HR2645 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 16.0°
Azimuth: 331.2°
Direction: North-North-West

Celestial coordinates and finder chart of HR2645

HR2645 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 HR2645 are provided in the following table:

07h 05m 08s
+47° 46’ 29”

The simplified sky map below shows the position of HR2645 in the sky:

Finder chart HR2645 star
Simplified finder chart for HR2645.

Visibility of HR2645 from your location

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

HR2645 is circumpolar and transits at 02:10 UTC (altitude: 86.3°)

Digitized Sky Survey image of HR2645

The image below is a photograph of HR2645 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 HR2645 is -0.001 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2645 star
DSS2 image of HR2645. The red arrow shows the motion of HR2645 during the next 100000 years (-1.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of HR2645 from the Sun and relative movement

HR2645 is distant 1,381.36 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

423.73 pc
1,381.36 ly
-17 km/s
-0.001 arcsec/year
-0.004 arcsec/year

Spectral properties of HR2645

HR2645 belongs to spectral class B9 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR2645 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2645. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2645