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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
SunriseRise: 6:08  
clear_day Transit: 12:59  
SunsetSet: 19:51
sunny DaytimeWhat's Visible Now?
All Constellations » Capricornus » 


Altitude: 22.3°   Azimuth: 215.8°   Direction: South-West

HR7845 is a multiple sub-giant star in the constellation of Capricornus.

HR7845 visual magnitude is 5.65. Because of its reltive faintness, HR7845 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR7845 is 0.308 arcsec per year in Right Ascension and 0.104 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR7845 star
DSS2 image of HR7845. The red arrow shows the motion of HR7845 during the next 1000 years (5.13 arcmin in Right Ascension and 1.73 arcmin in declination);

Key facts about HR7845


HR7845 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 22.3°
Azimuth: 215.8°
Direction: South-West

Celestial coordinates and finder chart of HR7845

HR7845 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7845 are provided in the following table:

20h 32m 23s
-09° 51’ 11”

The simplified sky map below shows the position of HR7845 in the sky:

Finder chart HR7845 star
Simplified finder chart for HR7845.

Visibility of HR7845 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 HR7845 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: 99.9°
Max altitude: 28.7°
Azimuth: 260.1°

Distance of HR7845 from the Sun and relative movement

HR7845 is distant 79.01 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

24.24 pc
79.01 ly
9 km/s
0.308 arcsec/year
0.104 arcsec/year

Spectral properties of HR7845

HR7845 belongs to spectral class G2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR7845 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7845. Attribution: Richard Powell / CC BY-SA

HR7845 star system properties

HR7845 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR7845 double sysyem:

103.2 arcsec

Alternative designations of HR7845