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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 » Andromeda » 


Altitude: 9.0°   Azimuth: 359.3°   Direction: North

HR647 is a double main-sequence star in the constellation of Andromeda.

HR647 visual magnitude is 6.06. Because of its reltive faintness, HR647 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 HR647:


HR647 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 9.0°
Azimuth: 359.3°
Direction: North

Celestial coordinates and finder chart of HR647

HR647 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 HR647 are provided in the following table:

02h 14m 02s
+47° 29’ 03”

The simplified sky map below shows the position of HR647 in the sky:

Finder chart HR647 star
Simplified finder chart for HR647.

Visibility of HR647 from your location

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

HR647 is circumpolar and transits at 21:16 UTC (altitude: 86.0°)

Digitized Sky Survey image of HR647

The image below is a photograph of HR647 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 HR647 is -0.063 arcsec per year in Right Ascension and -0.059 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR647 star
DSS2 image of HR647. The red arrow shows the motion of HR647 during the next 10000 years (-10.50 arcmin in Right Ascension and -9.83 arcmin in declination);

Distance of HR647 from the Sun and relative movement

HR647 is distant 135.44 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

41.55 pc
135.44 ly
-8 km/s
-0.063 arcsec/year
-0.059 arcsec/year

Spectral properties of HR647

HR647 belongs to spectral class F4 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR647 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR647. Attribution: Richard Powell / CC BY-SA

HR647 star system properties

HR647 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR647 double sysyem:

1 arcsec

Alternative designations of HR647