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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: 7:49  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Vulpecula » 


Altitude: 3.8°   Azimuth: 54.7°   Direction: North-East

HR7723 is a double star in the constellation of Vulpecula.

HR7723 visual magnitude is 6.56. Because of its reltive faintness, HR7723 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR7723:


HR7723 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 3.8°
Azimuth: 54.7°
Direction: North-East

Celestial coordinates and finder chart of HR7723

HR7723 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7723 are provided in the following table:

20h 13m 40s
+24° 14’ 20”

The simplified sky map below shows the position of HR7723 in the sky:

Finder chart HR7723 star
Simplified finder chart for HR7723.

Visibility of HR7723 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 HR7723 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: 65.8°
Max altitude: 62.8°
Azimuth: 294.2°

Digitized Sky Survey image of HR7723

The image below is a photograph of HR7723 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 HR7723 is 0.05 arcsec per year in Right Ascension and 0.031 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7723 star
DSS2 image of HR7723. The red arrow shows the motion of HR7723 during the next 10000 years (8.33 arcmin in Right Ascension and 5.17 arcmin in declination);

Distance of HR7723 from the Sun and relative movement

HR7723 is distant 334.36 light years from the Sun and it is moving towards the Sun at the speed of 37 kilometers per second.

102.56 pc
334.36 ly
-37 km/s
0.05 arcsec/year
0.031 arcsec/year

Spectral properties of HR7723

HR7723 belongs to spectral class A1


The red dot in the diagram below shows where HR7723 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7723. Attribution: Richard Powell / CC BY-SA

HR7723 star system properties

HR7723 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR7723 double sysyem:

2.7 arcsec

Alternative designations of HR7723