We use cookies to deliver essential features and to measure their performance. Learn more.
Help us keep TheSkyLive 100% free & ads-free, donate now!
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:10 
Transit: 12:13 
Sunset: 17:18
sleep   (Nighttime)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Serpens » 

τ2 Serpentis (tau2 Serpentis)

Above the horizon.  Rise: 22:17 | Tran: 5:43 | Set: 13:05
Alt: 54.07°   Az: 168.63°   Direction: South-South-East

τ2 Serpentis is a main-sequence star of spectral class B9 in the constellation of Serpens.

τ2 Serpentis visual magnitude is 6.22. Because of its faintness, τ2 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 τ2 Serpentis (tau2 Serpentis) star
DSS2 image of τ2 Serpentis. The red arrow shows the motion of τ2 Serpentis during the next 100000 years (1.67 arcmin in Right Ascension and 15.00 arcmin in declination);

Celestial Coordinates

Apparent

15h 33m 19s
+15° 58’ 20”
23h 32m 21s
15h 05m 40s

J2000

15h 32m 09s
+16° 03’ 21”

Galactic Coordinates

24.8°
51.22°

Finder Chart

loader
  Loading map...
Finder chart for τ2 Serpentis (tau2 Serpentis).

Magnitude, Color, Spectral Class

6.22
Main-sequence

0.61
B9V
10795K

The red dot in the diagram below shows where τ2 Serpentis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of τ2 Serpentis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

τ2 Serpentis is distant 431.22 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

132.28
431.22
-18 km/s
0.001 arcsec/y
0.009"/y

Alternative Designations

τ2 Serpentis
(tau2 Serpentis)
12 Serpentis
SAO101600
SAO101600

Visibility from Your Location

Today's τ2 Serpentis (tau2 Serpentis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 74.0°
Max altitude: 54.5°
Azimuth: 286.0°