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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: 6:46  
clear_day Transit: 12:11  
SunsetSet: 17:36
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Capricornus » 

ε Capricorni (epsilon Capricorni)

Altitude: -34.3°   Azimuth: 282.1°   Direction: West-North-West

ε Capricorni is a variable and multiple main-sequence star in the constellation of Capricornus.

ε Capricorni visual magnitude is 4.68. Because of its moderate brightness, ε Capricorni should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of ε Capricorni is 0.015 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ε Capricorni (epsilon Capricorni) star
DSS2 image of ε Capricorni. The red arrow shows the motion of ε Capricorni during the next 10000 years (2.50 arcmin in Right Ascension and 0.50 arcmin in declination);

Key facts about ε Capricorni

4.68
Main-sequence

ε Capricorni (epsilon Capricorni) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -34.3°
Azimuth: 282.1°
Direction: West-North-West

Celestial coordinates and finder chart of ε Capricorni

ε 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 ε Capricorni are provided in the following table:

21h 37m 04s
-19° 27’ 57”
31.94°
-44.99°
Capricornus

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

Finder chart ε Capricorni (epsilon Capricorni) star
Simplified finder chart for ε Capricorni (epsilon Capricorni).

Visibility of ε 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 ε Capricorni (epsilon 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: 109.5°
Max altitude: 19.1°
Azimuth: 250.5°

Distance of ε Capricorni from the Sun and relative movement

ε Capricorni is distant 662.60 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

203.25 pc
662.60 ly
-24 km/s
0.015 arcsec/year
0.003 arcsec/year

Spectral properties of ε Capricorni

ε Capricorni belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.

-1.86
B2V
12902K

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

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

ε Capricorni star system properties

ε 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 ε Capricorni double sysyem:

4.68
5.98
1.3
0 arcsec

Alternative designations of ε Capricorni

ε Capricorni
(epsilon Capricorni)
39 Capricorni
SAO164520
SAO164520