ε Equulei (epsilon Equulei)

Below the horizon. Rise: 21:18 | Tran: 3:42 | Set: 10:02

Alt: -8.41° Az: 71.94° Direction: South-West

ε Equulei is a multiple sub-giant star of spectral class F6 in the constellation of Equuleus.

ε Equulei visual magnitude is 5.23. Because of its faintness, ε Equulei is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

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);

Celestial Coordinates

Apparent

Right Ascension 21h 00m 20s

Declination +04° 23’ 37”

Hour Angle 16h 42m 25s

Sidereal Time 13h 42m 46s

J2000

Right Ascension 20h 59m 04s

Declination +04° 17’ 36”

Galactic Coordinates

Galactic Longitude 52.87°

Galactic Latitude -25.78°

Finder Chart

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Finder chart for ε Equulei (epsilon Equulei).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.23

Class Sub-giant

Absolute magnitude 1.33

Spectral Type F6IV

Color Index (B-V) 0.46

Temperature 6576K

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

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

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:

Main star magnitude 5.23

Secondary star magnitude 5.53

Magnitude difference 0.3

Separation 1 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 60.28

Distance (light year) 196.50

Radial Speed 18 km/s

Proper Motion RA -0.109 arcsec/y

Proper Motion Dec -0.148"/y

Alternative Designations

Bayer designation ε Equulei
(epsilon Equulei)

Flamsteed designation 1 Equulei

Henry Draper Catalogue HD199766

SAO Catalogue SAO126428

Hipparcos Catalogue HIP103569

Durchmusterung Catalogue BD+03 4473

Aitken Double Star Catalogue ADS14499

Visibility from Your Location

Today's ε Equulei (epsilon Equulei) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 85.6° RISE 21:18

Max altitude: 42.9° TRANSIT 3:42

Azimuth: 274.4° SET 10:02

Set Location

Other stars in Equuleus