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🌎  Greenwich, United Kingdom [change]

31 Capricorni

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

31 Capricorni visual magnitude is 7.05. Because of its reltive faintness, 31 Capricorni 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 31 Capricorni:

7.05
Main-sequence
31 Capricorni is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 31 Capricorni

31 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 31 Capricorni are provided in the following table:

21h 18m 15s
-17° 27’ 43”
32.4°
-40.11°
Capricornus

The simplified sky map below shows the position of 31 Capricorni in the sky:

Finder chart 31 Capricorni star
Simplified finder chart for 31 Capricorni.

Visibility of 31 Capricorni from your location

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

Today's 31 Capricorni rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.5°
Max altitude: 21.1°
Azimuth: 252.5°
31 Capricorni is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 31 Capricorni

The image below is a photograph of 31 Capricorni 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 31 Capricorni is 0.036 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 31 Capricorni star
DSS2 image of 31 Capricorni. The red arrow shows the motion of 31 Capricorni during the next 10000 years (6.00 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of 31 Capricorni from the Sun and relative movement

31 Capricorni is distant 337.82 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

103.63 pc
337.82 ly
-7 km/s
0.036 arcsec/year
0.004 arcsec/year

Spectral properties of 31 Capricorni

31 Capricorni belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.

1.97
F2V
7217K

The red dot in the diagram below shows where 31 Capricorni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 31 Capricorni. Attribution: Richard Powell / CC BY-SA

Alternative designations of 31 Capricorni

31 Capricorni
SAO164289
SAO164289