We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:38  
clear_day Transit: 12:10  
SunsetSet: 17:43
sleep NighttimeWhat's Visible Now?
All Constellations » Vulpecula » 

20 Vulpeculae

Altitude: -10.3°   Azimuth: 17.2°   Direction: North-North-East

20 Vulpeculae is a variable main-sequence star in the constellation of Vulpecula.

20 Vulpeculae visual magnitude is 5.92. Because of its reltive faintness, 20 Vulpeculae 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 20 Vulpeculae is 0.008 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 20 Vulpeculae star
DSS2 image of 20 Vulpeculae. The red arrow shows the motion of 20 Vulpeculae during the next 10000 years (1.33 arcmin in Right Ascension and -1.83 arcmin in declination);

Key facts about 20 Vulpeculae


20 Vulpeculae is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -10.3°
Azimuth: 17.2°
Direction: North-North-East

Celestial coordinates and finder chart of 20 Vulpeculae

20 Vulpeculae is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 20 Vulpeculae are provided in the following table:

20h 12m 00s
+26° 28’ 44”

The simplified sky map below shows the position of 20 Vulpeculae in the sky:

Finder chart 20 Vulpeculae star
Simplified finder chart for 20 Vulpeculae.

Visibility of 20 Vulpeculae 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 20 Vulpeculae 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: 63.5°
Max altitude: 65.0°
Azimuth: 296.5°

Distance of 20 Vulpeculae from the Sun and relative movement

20 Vulpeculae is distant 1,139.86 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

349.65 pc
1,139.86 ly
-22 km/s
0.008 arcsec/year
-0.011 arcsec/year

Spectral properties of 20 Vulpeculae

20 Vulpeculae belongs to spectral class B7 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 20 Vulpeculae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 20 Vulpeculae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 20 Vulpeculae

20 Vulpeculae