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🌎  Greenwich, United Kingdom [change]


HR7745 is a giant star in the constellation of Telescopium.

HR7745 visual magnitude is 6.31. Because of its reltive faintness, HR7745 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 HR7745:

HR7745 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR7745

HR7745 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7745 are provided in the following table:

20h 18m 56s
-47° 42’ 38”

The simplified sky map below shows the position of HR7745 in the sky:

Finder chart HR7745 star
Simplified finder chart for HR7745.

Visibility of HR7745 from your location

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

HR7745 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR7745

The image below is a photograph of HR7745 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 HR7745 is 0.012 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7745 star
DSS2 image of HR7745. The red arrow shows the motion of HR7745 during the next 10000 years (2.00 arcmin in Right Ascension and -0.67 arcmin in declination);

Distance of HR7745 from the Sun and relative movement

HR7745 is distant 674.95 light years from the Sun and it is moving towards the Sun at the speed of 44 kilometers per second.

207.04 pc
674.95 ly
-44 km/s
0.012 arcsec/year
-0.004 arcsec/year

Spectral properties of HR7745

HR7745 belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR7745 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR7745. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7745