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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 » 

HR7964

Altitude: 8.6°   Azimuth: 226.2°   Direction: South-West

HR7964 is a double giant star in the constellation of Capricornus.

HR7964 visual magnitude is 6.21. Because of its reltive faintness, HR7964 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 HR7964 is 0.002 arcsec per year in Right Ascension and -0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7964 star
DSS2 image of HR7964. The red arrow shows the motion of HR7964 during the next 10000 years (0.33 arcmin in Right Ascension and -5.00 arcmin in declination);

Key facts about HR7964

6.21
Giant

HR7964 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 8.6°
Azimuth: 226.2°
Direction: South-West

Celestial coordinates and finder chart of HR7964

HR7964 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 HR7964 are provided in the following table:

20h 49m 20s
-18° 02’ 08”
28.63°
-33.89°
Capricornus

The simplified sky map below shows the position of HR7964 in the sky:

Finder chart HR7964 star
Simplified finder chart for HR7964.

Visibility of HR7964 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 HR7964 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: 108.0°
Max altitude: 20.5°
Azimuth: 252.0°

Distance of HR7964 from the Sun and relative movement

HR7964 is distant 1,124.14 light years from the Sun and it is moving far from the Sun at the speed of 44 kilometers per second.

344.83 pc
1,124.14 ly
44 km/s
0.002 arcsec/year
-0.03 arcsec/year

Spectral properties of HR7964

HR7964 belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.

-1.48
K3III
3918K

The red dot in the diagram below shows where HR7964 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7964. Attribution: Richard Powell / CC BY-SA

HR7964 star system properties

HR7964 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 HR7964 double sysyem:

6.21
12.71
6.5
31.6 arcsec

Alternative designations of HR7964

SAO163910
SAO163910