Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:48  
clear_day Transit: 12:56  
SunsetSet: 21:05 south
sunny DaytimeWhat's Visible Now
All Constellations » Microscopium » 


HR7915 is a giant star in the constellation of Microscopium.

HR7915 visual magnitude is 6.29. Because of its reltive faintness, HR7915 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 HR7915:

HR7915 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR7915

HR7915 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 HR7915 are provided in the following table:

20h 42m 52s
-39° 33’ 30”

The simplified sky map below shows the position of HR7915 in the sky:

Finder chart HR7915 star
Simplified finder chart for HR7915.

Visibility of HR7915 from your location

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

HR7915 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR7915

The image below is a photograph of HR7915 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 HR7915 is 0.024 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7915 star
DSS2 image of HR7915. The red arrow shows the motion of HR7915 during the next 10000 years (4.00 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR7915 from the Sun and relative movement

HR7915 is distant 1,314.52 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

403.23 pc
1,314.52 ly
-7 km/s
0.024 arcsec/year
-0.006 arcsec/year

Spectral properties of HR7915

HR7915 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR7915 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR7915. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7915