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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: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
sunny DaytimeWhat's Visible Now?
All Constellations » Aries » 


Altitude: -8.6°   Azimuth: 18.6°   Direction: North-North-East

HR945 is a hypergiant star in the constellation of Aries.

HR945 visual magnitude is 6.42. Because of its reltive faintness, HR945 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 HR945:


HR945 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -8.6°
Azimuth: 18.6°
Direction: North-North-East

Celestial coordinates and finder chart of HR945

HR945 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 HR945 are provided in the following table:

03h 10m 08s
+27° 49’ 12”

The simplified sky map below shows the position of HR945 in the sky:

Finder chart HR945 star
Simplified finder chart for HR945.

Visibility of HR945 from your location

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

Today's HR945 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.2°
Max altitude: 66.3°
Azimuth: 297.8°

Digitized Sky Survey image of HR945

The image below is a photograph of HR945 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 HR945 is 0.005 arcsec per year in Right Ascension and -0.048 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR945 star
DSS2 image of HR945. The red arrow shows the motion of HR945 during the next 10000 years (0.83 arcmin in Right Ascension and -8.00 arcmin in declination);

Distance of HR945 from the Sun and relative movement

HR945 is distant 601.48 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

184.50 pc
601.48 ly
-5 km/s
0.005 arcsec/year
-0.048 arcsec/year

Spectral properties of HR945

HR945 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR945 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR945. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR945