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

Right Ascension 15h 36m 42s

Declination +17° 34’ 21”

Hour Angle 14h 10m 42s

Sidereal Time 05h 47m 25s

J2000

Right Ascension 15h 35m 33s

Declination +17° 39’ 20”

Galactic Coordinates

Galactic Longitude 27.65°

Galactic Latitude 51.08°

Finder Chart

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Finder chart for τ3 Serpentis (tau3 Serpentis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.12

Class Giant

Absolute magnitude 0.60

Spectral Type G8

Color Index (B-V) 0.94

Temperature 4892K

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

Distance (parsec) 127.06

Distance (light year) 414.23

Radial Speed -22 km/s

Proper Motion RA -0.079 arcsec/y

Proper Motion Dec -0.014"/y

Alternative Designations

Bayer designation τ3 Serpentis
(tau3 Serpentis)

Flamsteed designation 15 Serpentis

Henry Draper Catalogue HD139074

SAO Catalogue SAO101631

Hipparcos Catalogue HIP76337

Durchmusterung Catalogue BD+18 3044

FK5 Catalogue 3230

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° RISE 17:09

Max altitude: 56.1° TRANSIT 0:41

Azimuth: 287.6° SET 8:16

Set Location

Other stars in Serpens