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: 4:47  
clear_day Transit: 12:56  
SunsetSet: 21:06 south
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All Constellations » Cassiopeia » 

HR5

HR5 is a variable and double main-sequence star in the constellation of Cassiopeia.

HR5 visual magnitude is 5.96. Because of its reltive faintness, HR5 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 HR5:

5.96
Main-sequence
HR5 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 74°.

Celestial coordinates and finder chart of HR5

HR5 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 HR5 are provided in the following table:

00h 06m 15s
+58° 26’ 12”
117.03°
-3.92°
Cassiopeia

The simplified sky map below shows the position of HR5 in the sky:

Finder chart HR5 star
Simplified finder chart for HR5.

Visibility of HR5 from your location

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

HR5 is circumpolar and transits at 07:20 UTC (altitude: 83.0°)

Digitized Sky Survey image of HR5

The image below is a photograph of HR5 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 HR5 is 0.263 arcsec per year in Right Ascension and 0.03 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR5 star
DSS2 image of HR5. The red arrow shows the motion of HR5 during the next 1000 years (4.38 arcmin in Right Ascension and 0.50 arcmin in declination);

Distance of HR5 from the Sun and relative movement

HR5 is distant 66.13 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

20.28 pc
66.13 ly
-12 km/s
0.263 arcsec/year
0.03 arcsec/year

Spectral properties of HR5

HR5 belongs to spectral class G5 and has a luminosity class of V corresponding to a main-sequence star.

4.42
G5V
5706K

The red dot in the diagram below shows where HR5 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5. Attribution: Richard Powell / CC BY-SA

HR5 star system properties

HR5 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR5 double sysyem:

5.96
6.76
0.8
1.4 arcsec

Alternative designations of HR5

SAO21085
SAO21085