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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: 6:08  
clear_day Transit: 12:59  
SunsetSet: 19:51
sunny DaytimeWhat's Visible Now?
All Constellations » Capricornus » 


Altitude: 7.9°   Azimuth: 210.6°   Direction: South-South-West

HR7877 is a hypergiant star in the constellation of Capricornus.

HR7877 visual magnitude is 6.36. Because of its reltive faintness, HR7877 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 HR7877 is 0.064 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7877 star
DSS2 image of HR7877. The red arrow shows the motion of HR7877 during the next 10000 years (10.67 arcmin in Right Ascension and -0.17 arcmin in declination);

Key facts about HR7877


HR7877 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 7.9°
Azimuth: 210.6°
Direction: South-South-West

Celestial coordinates and finder chart of HR7877

HR7877 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 HR7877 are provided in the following table:

20h 37m 52s
-25° 06’ 32”

The simplified sky map below shows the position of HR7877 in the sky:

Finder chart HR7877 star
Simplified finder chart for HR7877.

Visibility of HR7877 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 HR7877 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: 115.1°
Max altitude: 13.4°
Azimuth: 244.9°

Distance of HR7877 from the Sun and relative movement

HR7877 is distant 164.15 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

50.35 pc
164.15 ly
-26 km/s
0.064 arcsec/year
-0.001 arcsec/year

Spectral properties of HR7877

HR7877 belongs to spectral class F0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR7877 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7877. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7877