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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: 5:39  
clear_day Transit: 12:56  
SunsetSet: 20:14
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All Constellations » Octans » 

HR7785

Altitude: -46.8°   Azimuth: 191.9°   Direction: South-South-West

HR7785 is a double bright giant star in the constellation of Octans.

HR7785 visual magnitude is 5.77. Because of its reltive faintness, HR7785 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 HR7785 is -0.004 arcsec per year in Right Ascension and -0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7785 star
DSS2 image of HR7785. The red arrow shows the motion of HR7785 during the next 10000 years (-0.67 arcmin in Right Ascension and -3.17 arcmin in declination);

Key facts about HR7785

5.77
Bright giant

HR7785 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -46.8°
Azimuth: 191.9°
Direction: South-South-West

Celestial coordinates and finder chart of HR7785

HR7785 is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7785 are provided in the following table:

20h 33m 17s
-80° 57’ 54”
312.42°
-30.69°
Octans

The simplified sky map below shows the position of HR7785 in the sky:

Finder chart HR7785 star
Simplified finder chart for HR7785.

Visibility of HR7785 from your location

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

HR7785 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR7785 from the Sun and relative movement

HR7785 is distant 526.66 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

161.55 pc
526.66 ly
9 km/s
-0.004 arcsec/year
-0.019 arcsec/year

Spectral properties of HR7785

HR7785 belongs to spectral class G6 and has a luminosity class of II corresponding to a bright giant star.

-0.27
G6II
4430K

The red dot in the diagram below shows where HR7785 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7785. Attribution: Richard Powell / CC BY-SA

HR7785 star system properties

HR7785 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 HR7785 double sysyem:

5.77
11.47
5.7
26.8 arcsec

Alternative designations of HR7785

SAO258861
SAO258861