Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:52  
clear_day Transit: 12:55  
SunsetSet: 20:59 south
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All Constellations » Camelopardalis » 


HR3934 is a variable hypergiant star in the constellation of Camelopardalis.

HR3934 visual magnitude is 6.37. Because of its reltive faintness, HR3934 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 HR3934:

HR3934 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 57°.

Celestial coordinates and finder chart of HR3934

HR3934 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 HR3934 are provided in the following table:

10h 08m 34s
+83° 55’ 05”

The simplified sky map below shows the position of HR3934 in the sky:

Finder chart HR3934 star
Simplified finder chart for HR3934.

Visibility of HR3934 from your location

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

HR3934 is circumpolar and transits at 17:44 UTC (altitude: 57.6°)

Digitized Sky Survey image of HR3934

The image below is a photograph of HR3934 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 HR3934 is -0.004 arcsec per year in Right Ascension and 0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR3934 star
DSS2 image of HR3934. The red arrow shows the motion of HR3934 during the next 100000 years (-6.67 arcmin in Right Ascension and 11.67 arcmin in declination);

Distance of HR3934 from the Sun and relative movement

HR3934 is distant 883.47 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

271.00 pc
883.47 ly
-12 km/s
-0.004 arcsec/year
0.007 arcsec/year

Spectral properties of HR3934

HR3934 belongs to spectral class K0


The red dot in the diagram below shows where HR3934 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3934. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3934