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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: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sunny DaytimeWhat's Visible Now?
All Constellations » Perseus » 


Altitude: 22.5°   Azimuth: 339.8°   Direction: North-North-West

HR825 is a variable supergiant star in the constellation of Perseus.

HR825 visual magnitude is 6.25. Because of its reltive faintness, HR825 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 HR825:


HR825 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 22.5°
Azimuth: 339.8°
Direction: North-North-West

Celestial coordinates and finder chart of HR825

HR825 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 HR825 are provided in the following table:

02h 49m 30s
+57° 05’ 03”

The simplified sky map below shows the position of HR825 in the sky:

Finder chart HR825 star
Simplified finder chart for HR825.

Visibility of HR825 from your location

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

HR825 is circumpolar and transits at 22:11 UTC (altitude: 84.4°)

Digitized Sky Survey image of HR825

The image below is a photograph of HR825 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 HR825 is 0.004 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR825 star
DSS2 image of HR825. The red arrow shows the motion of HR825 during the next 10000 years (0.67 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of HR825 from the Sun and relative movement

HR825 is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 38 kilometers per second.

10,000,000.00 pc
32,600,000.00 ly
-38 km/s
0.004 arcsec/year
-0.01 arcsec/year

Spectral properties of HR825

HR825 belongs to spectral class A5 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where HR825 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR825. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR825