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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: 6:44  
clear_day Transit: 12:10  
SunsetSet: 17:38
sunny DaytimeWhat's Visible Now?
All Constellations » Equuleus » 

ε Equulei (epsilon Equulei)

Altitude: 13.2°   Azimuth: 260.1°   Direction: West

ε Equulei is a multiple sub-giant star in the constellation of Equuleus.

ε Equulei visual magnitude is 5.23. Because of its reltive faintness, ε Equulei 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 ε Equulei is -0.109 arcsec per year in Right Ascension and -0.148 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ε Equulei (epsilon Equulei) star
DSS2 image of ε Equulei. The red arrow shows the motion of ε Equulei during the next 1000 years (-1.82 arcmin in Right Ascension and -2.47 arcmin in declination);

Key facts about ε Equulei

5.23
Sub-giant

ε Equulei (epsilon Equulei) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 13.2°
Azimuth: 260.1°
Direction: West

Celestial coordinates and finder chart of ε Equulei

ε Equulei 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 Equulei are provided in the following table:

20h 59m 04s
+04° 17’ 36”
52.87°
-25.78°
Equuleus

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

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

Visibility of ε Equulei 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 Equulei (epsilon Equulei) 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: 85.7°
Max altitude: 42.8°
Azimuth: 274.3°

Distance of ε Equulei from the Sun and relative movement

ε Equulei is distant 196.50 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

60.28 pc
196.50 ly
18 km/s
-0.109 arcsec/year
-0.148 arcsec/year

Spectral properties of ε Equulei

ε Equulei belongs to spectral class F6 and has a luminosity class of IV corresponding to a sub-giant star.

1.33
F6IV
6576K

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

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

ε Equulei star system properties

ε Equulei is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the ε Equulei double sysyem:

5.23
5.53
0.3
1 arcsec

Alternative designations of ε Equulei

ε Equulei
(epsilon Equulei)
SAO126428
SAO126428