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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sleep NighttimeWhat's Visible Now?
All Constellations » Vulpecula » 

23 Vulpeculae

Altitude: 26.4°   Azimuth: 282.3°   Direction: West-North-West

23 Vulpeculae is a giant star in the constellation of Vulpecula.

23 Vulpeculae visual magnitude is 4.52. Because of its moderate brightness, 23 Vulpeculae should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 23 Vulpeculae:


23 Vulpeculae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 26.4°
Azimuth: 282.3°
Direction: West-North-West

Celestial coordinates and finder chart of 23 Vulpeculae

23 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 23 Vulpeculae are provided in the following table:

20h 15m 46s
+27° 48’ 51”

The simplified sky map below shows the position of 23 Vulpeculae in the sky:

Finder chart 23 Vulpeculae star
Simplified finder chart for 23 Vulpeculae.

Visibility of 23 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 23 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: 62.2°
Max altitude: 66.3°
Azimuth: 297.8°

Digitized Sky Survey image of 23 Vulpeculae

The image below is a photograph of 23 Vulpeculae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 23 Vulpeculae is -0.036 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 23 Vulpeculae star
DSS2 image of 23 Vulpeculae. The red arrow shows the motion of 23 Vulpeculae during the next 10000 years (-6.00 arcmin in Right Ascension and 1.33 arcmin in declination);

Distance of 23 Vulpeculae from the Sun and relative movement

23 Vulpeculae is distant 327.97 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

100.60 pc
327.97 ly
3 km/s
-0.036 arcsec/year
0.008 arcsec/year

Spectral properties of 23 Vulpeculae

23 Vulpeculae belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 23 Vulpeculae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 23 Vulpeculae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 23 Vulpeculae

23 Vulpeculae