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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 » 

42 Capricorni

Altitude: 24.0°   Azimuth: 190.1°   Direction: South

42 Capricorni is a double main-sequence star in the constellation of Capricornus.

42 Capricorni visual magnitude is 5.18. Because of its reltive faintness, 42 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 42 Capricorni is -0.118 arcsec per year in Right Ascension and -0.307 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 42 Capricorni star
DSS2 image of 42 Capricorni. The red arrow shows the motion of 42 Capricorni during the next 1000 years (-1.97 arcmin in Right Ascension and -5.12 arcmin in declination);

Key facts about 42 Capricorni


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

Altitude: 24.0°
Azimuth: 190.1°
Direction: South

Celestial coordinates and finder chart of 42 Capricorni

42 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 42 Capricorni are provided in the following table:

21h 41m 32s
-14° 02’ 50”

The simplified sky map below shows the position of 42 Capricorni in the sky:

Finder chart 42 Capricorni star
Simplified finder chart for 42 Capricorni.

Visibility of 42 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 42 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: 104.0°
Max altitude: 24.5°
Azimuth: 256.0°

Distance of 42 Capricorni from the Sun and relative movement

42 Capricorni is distant 106.09 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

32.54 pc
106.09 ly
-1 km/s
-0.118 arcsec/year
-0.307 arcsec/year

Spectral properties of 42 Capricorni

42 Capricorni belongs to spectral class G1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 42 Capricorni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 42 Capricorni. Attribution: Richard Powell / CC BY-SA

42 Capricorni star system properties

42 Capricorni 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 42 Capricorni double sysyem:

0 arcsec

Alternative designations of 42 Capricorni

42 Capricorni