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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
SunriseRise: 6:46  
clear_day Transit: 12:11  
SunsetSet: 17:36
sunny DaytimeWhat's Visible Now?
All Constellations » Camelopardalis » 


Altitude: 40.2°   Azimuth: 7.3°   Direction: North

HR4646 is a star in the constellation of Camelopardalis.

HR4646 visual magnitude is 5.14. Because of its reltive faintness, HR4646 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4646 is 0.01 arcsec per year in Right Ascension and 0.022 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4646 star
DSS2 image of HR4646. The red arrow shows the motion of HR4646 during the next 10000 years (1.67 arcmin in Right Ascension and 3.67 arcmin in declination);

Key facts about HR4646


HR4646 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 40.2°
Azimuth: 7.3°
Direction: North

Celestial coordinates and finder chart of HR4646

HR4646 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 HR4646 are provided in the following table:

12h 12m 11s
+77° 36’ 59”

The simplified sky map below shows the position of HR4646 in the sky:

Finder chart HR4646 star
Simplified finder chart for HR4646.

Visibility of HR4646 from your location

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

HR4646 is circumpolar and transits at 01:38 UTC (altitude: 63.9°)

Distance of HR4646 from the Sun and relative movement

HR4646 is distant 109.76 light years from the Sun

33.67 pc
109.76 ly
0.01 arcsec/year
0.022 arcsec/year

Spectral properties of HR4646

HR4646 belongs to spectral class A5


The red dot in the diagram below shows where HR4646 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4646. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4646