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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: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?
All Constellations » Sagitta » 

ε Sagittae (epsilon Sagittae)

Altitude: 26.3°   Azimuth: 263.5°   Direction: West

ε Sagittae is a variable and multiple giant star in the constellation of Sagitta.

ε Sagittae visual magnitude is 5.66. Because of its reltive faintness, ε Sagittae 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 Sagittae is 0.02 arcsec per year in Right Ascension and 0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ε Sagittae (epsilon Sagittae) star
DSS2 image of ε Sagittae. The red arrow shows the motion of ε Sagittae during the next 10000 years (3.33 arcmin in Right Ascension and 2.50 arcmin in declination);

Key facts about ε Sagittae

5.66
Giant

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

Altitude: 26.3°
Azimuth: 263.5°
Direction: West

Celestial coordinates and finder chart of ε Sagittae

ε Sagittae 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 Sagittae are provided in the following table:

19h 37m 17s
+16° 27’ 46”
52.77°
-2.32°
Sagitta

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

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

Visibility of ε Sagittae 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 Sagittae (epsilon Sagittae) 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: 73.5°
Max altitude: 55.0°
Azimuth: 286.5°

Distance of ε Sagittae from the Sun and relative movement

ε Sagittae is distant 473.15 light years from the Sun and it is moving towards the Sun at the speed of 33 kilometers per second.

145.14 pc
473.15 ly
-33 km/s
0.02 arcsec/year
0.015 arcsec/year

Spectral properties of ε Sagittae

ε Sagittae belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

-0.15
G8III
4695K

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

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

ε Sagittae star system properties

ε Sagittae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the ε Sagittae double sysyem:

5.66
8.36
2.7
88.9 arcsec

Alternative designations of ε Sagittae

ε Sagittae
(epsilon Sagittae)
SAO105061
SAO105061