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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
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All Constellations » Triangulum Australe » 

HR5766

Altitude: -42.0°   Azimuth: 146.8°   Direction: South-South-East

HR5766 is a double sub-giant star in the constellation of Triangulum Australe.

HR5766 visual magnitude is 6.51. Because of its reltive faintness, HR5766 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 HR5766:

6.51
Sub-giant

HR5766 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -42.0°
Azimuth: 146.8°
Direction: South-South-East

Celestial coordinates and finder chart of HR5766

HR5766 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR5766 are provided in the following table:

15h 36m 17s
-65° 36’ 47”
318.88°
-7.98°
Triangulum Australe

The simplified sky map below shows the position of HR5766 in the sky:

Finder chart HR5766 star
Simplified finder chart for HR5766.

Visibility of HR5766 from your location

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

HR5766 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR5766

The image below is a photograph of HR5766 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 HR5766 is -0.092 arcsec per year in Right Ascension and -0.063 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR5766 star
DSS2 image of HR5766. The red arrow shows the motion of HR5766 during the next 1000 years (-1.53 arcmin in Right Ascension and -1.05 arcmin in declination);

Distance of HR5766 from the Sun and relative movement

HR5766 is distant 261.01 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

80.06 pc
261.01 ly
-8 km/s
-0.092 arcsec/year
-0.063 arcsec/year

Spectral properties of HR5766

HR5766 belongs to spectral class F3 and has a luminosity class of IV corresponding to a sub-giant star.

1.99
F3IV
7158K

The red dot in the diagram below shows where HR5766 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR5766. Attribution: Richard Powell / CC BY-SA

HR5766 star system properties

HR5766 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR5766 double sysyem:

6.51
13.51
7
5.3 arcsec

Alternative designations of HR5766

SAO253222
SAO253222