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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
sleep NighttimeWhat's Visible Now?
All Constellations » Andromeda » 


Altitude: 19.0°   Azimuth: 318.9°   Direction: North-West

HR663 is a variable star in the constellation of Andromeda.

HR663 visual magnitude is 6.7. Because of its reltive faintness, HR663 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 HR663:


HR663 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 19.0°
Azimuth: 318.9°
Direction: North-West

Celestial coordinates and finder chart of HR663

HR663 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 HR663 are provided in the following table:

02h 17m 33s
+44° 18’ 24”

The simplified sky map below shows the position of HR663 in the sky:

Finder chart HR663 star
Simplified finder chart for HR663.

Visibility of HR663 from your location

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

HR663 is circumpolar and transits at 21:19 UTC (altitude: 82.8°)

Digitized Sky Survey image of HR663

The image below is a photograph of HR663 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 HR663 is 0.041 arcsec per year in Right Ascension and 0.083 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR663 star
DSS2 image of HR663. The red arrow shows the motion of HR663 during the next 10000 years (6.83 arcmin in Right Ascension and 13.83 arcmin in declination);

Distance of HR663 from the Sun and relative movement

HR663 is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 45 kilometers per second.

10,000,000.00 pc
32,600,000.00 ly
-45 km/s
0.041 arcsec/year
0.083 arcsec/year

Spectral properties of HR663

HR663 belongs to spectral class M7


The red dot in the diagram below shows where HR663 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR663. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR663