10 Serpentis

Above the horizon. Rise: 18:59 | Tran: 1:09 | Set: 7:16

Alt: 24.27° Az: 239.17° Direction: West-South-West

10 Serpentis is a sub-giant star of spectral class A8 in the constellation of Serpens.

10 Serpentis visual magnitude is 5.17. Because of its faintness, 10 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.

DSS2 image of 10 Serpentis. The red arrow shows the motion of 10 Serpentis during the next 10000 years (-13.83 arcmin in Right Ascension and -4.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 29m 55s

Declination +01° 45’ 21”

Hour Angle 03h 26m 11s

Sidereal Time 18h 56m 07s

J2000

Right Ascension 15h 28m 38s

Declination +01° 50’ 31”

Galactic Coordinates

Galactic Longitude 5.82°

Galactic Latitude 44.67°

Finder Chart

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Finder chart for 10 Serpentis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.17

Class Sub-giant

Absolute magnitude 2.30

Spectral Type A8IV

Color Index (B-V) 0.23

Temperature 7938K

The red dot in the diagram below shows where 10 Serpentis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 10 Serpentis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

10 Serpentis is distant 122.19 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

Distance (parsec) 37.48

Distance (light year) 122.19

Radial Speed -10 km/s

Proper Motion RA -0.083 arcsec/y

Proper Motion Dec -0.029"/y

Alternative Designations

Flamsteed designation 10 Serpentis

Henry Draper Catalogue HD137898

SAO Catalogue SAO121020

Hipparcos Catalogue HIP75761

Durchmusterung Catalogue BD+02 2965

FK5 Catalogue 3221

Visibility from Your Location

Today's 10 Serpentis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 88.2° RISE 18:59

Max altitude: 40.3° TRANSIT 1:09

Azimuth: 271.8° SET 7:16

Set Location

Other stars in Serpens