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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:02 
Transit: 12:56 
Sunset: 20:51
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All Constellations » Serpens » 

τ3 Serpentis (tau3 Serpentis)

Below the horizon.  Rise: 17:09 | Tran: 0:41 | Set: 8:16
Alt: -15.28°   Az: 32.25°   Direction: North-North-East

τ3 Serpentis is a giant star of spectral class G8 in the constellation of Serpens.

τ3 Serpentis visual magnitude is 6.12. Because of its faintness, τ3 Serpentis 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 τ3 Serpentis (tau3 Serpentis) star
DSS2 image of τ3 Serpentis. The red arrow shows the motion of τ3 Serpentis during the next 10000 years (-13.17 arcmin in Right Ascension and -2.33 arcmin in declination);

Celestial Coordinates

Apparent

15h 36m 42s
+17° 34’ 21”
14h 10m 42s
05h 47m 25s

J2000

15h 35m 33s
+17° 39’ 20”

Galactic Coordinates

27.65°
51.08°

Finder Chart

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Finder chart for τ3 Serpentis (tau3 Serpentis).

Magnitude, Color, Spectral Class

6.12
Giant

0.60
G8
4892K

The red dot in the diagram below shows where τ3 Serpentis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of τ3 Serpentis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

τ3 Serpentis is distant 414.23 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

127.06
414.23
-22 km/s
-0.079 arcsec/y
-0.014"/y

Alternative Designations

τ3 Serpentis
(tau3 Serpentis)
15 Serpentis
SAO101631
SAO101631

Visibility from Your Location

Today's τ3 Serpentis (tau3 Serpentis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 72.4°
Max altitude: 56.1°
Azimuth: 287.6°