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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sunny DaytimeWhat's Visible Now?
All Constellations » Cetus » 


Altitude: -31.3°   Azimuth: 331.3°   Direction: North-North-West

HR775 is a double giant star in the constellation of Cetus.

HR775 visual magnitude is 6.21. Because of its reltive faintness, HR775 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 HR775:


HR775 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -31.3°
Azimuth: 331.3°
Direction: North-North-West

Celestial coordinates and finder chart of HR775

HR775 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 HR775 are provided in the following table:

02h 38m 36s
+03° 26’ 35”

The simplified sky map below shows the position of HR775 in the sky:

Finder chart HR775 star
Simplified finder chart for HR775.

Visibility of HR775 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 HR775 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: 86.6°
Max altitude: 42.0°
Azimuth: 273.4°

Digitized Sky Survey image of HR775

The image below is a photograph of HR775 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 HR775 is 0.043 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR775 star
DSS2 image of HR775. The red arrow shows the motion of HR775 during the next 10000 years (7.17 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR775 from the Sun and relative movement

HR775 is distant 437.00 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

134.05 pc
437.00 ly
2 km/s
0.043 arcsec/year
0.002 arcsec/year

Spectral properties of HR775

HR775 belongs to spectral class G9 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR775 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR775. Attribution: Richard Powell / CC BY-SA

HR775 star system properties

HR775 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR775 double sysyem:

0.8 arcsec

Alternative designations of HR775