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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:09 
Transit: 11:43 
Sunset: 16:18
wb_twilight   (Nautical Twilight)  
What's Visible Now • Tonight Timeline
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All Constellations » Serpens » 

10 Serpentis

Above the horizon.  Rise: 6:06 | Tran: 12:13 | Set: 18:20
Alt: 7.63°   Az: 263.18°   Direction: 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.

Image of 10 Serpentis star
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

15h 29m 53s
+01° 45’ 27”
05h 19m 43s
20h 49m 37s

J2000

15h 28m 38s
+01° 50’ 31”

Galactic Coordinates

5.82°
44.67°

Finder Chart

Finder chart 10 Serpentis star
Simplified finder chart for 10 Serpentis.

Magnitude, Color, Spectral Class

5.17
Sub-giant

2.30
A8IV
7938K

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

HR 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.

37.48
122.19
-10 km/s
-0.083 arcsec/y
-0.029"/y

Alternative Designations

10 Serpentis
SAO121020
SAO121020

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°
Max altitude: 40.3°
Azimuth: 271.8°