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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: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sunny DaytimeWhat's Visible Now?
All Constellations » Serpens » 

τ6 Serpentis (tau6 Serpentis)

Altitude: -1.7°   Azimuth: 298.7°   Direction: West-North-West

τ6 Serpentis is a giant star in the constellation of Serpens.

τ6 Serpentis visual magnitude is 6.01. Because of its reltive faintness, τ6 Serpentis 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 τ6 Serpentis is 0.028 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of τ6 Serpentis (tau6 Serpentis) star
DSS2 image of τ6 Serpentis. The red arrow shows the motion of τ6 Serpentis during the next 10000 years (4.67 arcmin in Right Ascension and -2.17 arcmin in declination);

Key facts about τ6 Serpentis


τ6 Serpentis (tau6 Serpentis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.7°
Azimuth: 298.7°
Direction: West-North-West

Celestial coordinates and finder chart of τ6 Serpentis

τ6 Serpentis 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 τ6 Serpentis are provided in the following table:

15h 40m 59s
+16° 01’ 28”

The simplified sky map below shows the position of τ6 Serpentis in the sky:

Finder chart τ6 Serpentis (tau6 Serpentis) star
Simplified finder chart for τ6 Serpentis (tau6 Serpentis).

Visibility of τ6 Serpentis 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 τ6 Serpentis (tau6 Serpentis) 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: 74.0°
Max altitude: 54.5°
Azimuth: 286.0°

Distance of τ6 Serpentis from the Sun and relative movement

τ6 Serpentis is distant 450.28 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

138.12 pc
450.28 ly
3 km/s
0.028 arcsec/year
-0.013 arcsec/year

Spectral properties of τ6 Serpentis

τ6 Serpentis belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where τ6 Serpentis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of τ6 Serpentis. Attribution: Richard Powell / CC BY-SA

Alternative designations of τ6 Serpentis

τ6 Serpentis
(tau6 Serpentis)
19 Serpentis