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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
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All Constellations » Capricornus » 

45 Capricorni

Altitude: 22.2°   Azimuth: 197.5°   Direction: South-South-West

45 Capricorni is a hypergiant star in the constellation of Capricornus.

45 Capricorni visual magnitude is 5.99. Because of its reltive faintness, 45 Capricorni 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 45 Capricorni is -0.023 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 45 Capricorni star
DSS2 image of 45 Capricorni. The red arrow shows the motion of 45 Capricorni during the next 10000 years (-3.83 arcmin in Right Ascension and 1.33 arcmin in declination);

Key facts about 45 Capricorni


45 Capricorni is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 22.2°
Azimuth: 197.5°
Direction: South-South-West

Celestial coordinates and finder chart of 45 Capricorni

45 Capricorni 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 45 Capricorni are provided in the following table:

21h 44m 00s
-14° 44’ 57”

The simplified sky map below shows the position of 45 Capricorni in the sky:

Finder chart 45 Capricorni star
Simplified finder chart for 45 Capricorni.

Visibility of 45 Capricorni 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 45 Capricorni 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: 104.7°
Max altitude: 23.8°
Azimuth: 255.3°

Distance of 45 Capricorni from the Sun and relative movement

45 Capricorni is distant 170.86 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

52.41 pc
170.86 ly
-4 km/s
-0.023 arcsec/year
0.008 arcsec/year

Spectral properties of 45 Capricorni

45 Capricorni belongs to spectral class F0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where 45 Capricorni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 45 Capricorni. Attribution: Richard Powell / CC BY-SA

Alternative designations of 45 Capricorni

45 Capricorni