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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: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Lynx » 


Altitude: 84.3°   Azimuth: 286.4°   Direction: West-North-West

HR2644 is a multiple main-sequence star in the constellation of Lynx.

HR2644 visual magnitude is 6.12. Because of its reltive faintness, HR2644 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 HR2644:


HR2644 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 84.3°
Azimuth: 286.4°
Direction: West-North-West

Celestial coordinates and finder chart of HR2644

HR2644 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 HR2644 are provided in the following table:

07h 05m 39s
+52° 45’ 29”

The simplified sky map below shows the position of HR2644 in the sky:

Finder chart HR2644 star
Simplified finder chart for HR2644.

Visibility of HR2644 from your location

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

HR2644 is circumpolar and transits at 01:55 UTC (altitude: 88.7°)

Digitized Sky Survey image of HR2644

The image below is a photograph of HR2644 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 HR2644 is -0.024 arcsec per year in Right Ascension and -0.072 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR2644 star
DSS2 image of HR2644. The red arrow shows the motion of HR2644 during the next 10000 years (-4.00 arcmin in Right Ascension and -12.00 arcmin in declination);

Distance of HR2644 from the Sun and relative movement

HR2644 is distant 346.81 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

106.38 pc
346.81 ly
27 km/s
-0.024 arcsec/year
-0.072 arcsec/year

Spectral properties of HR2644

HR2644 belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR2644 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2644. Attribution: Richard Powell / CC BY-SA

HR2644 star system properties

HR2644 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR2644 double sysyem:

4.2 arcsec

Alternative designations of HR2644