Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:02  
clear_day Transit: 12:47  
SunsetSet: 18:32 south
sunny DaytimeWhat's Visible Now
All Constellations » Draco » 


Altitude: 41.3°   Azimuth: 2.8°   Direction: North

HR7423 is a main-sequence star in the constellation of Draco.

HR7423 visual magnitude is 6.05. Because of its reltive faintness, HR7423 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 HR7423:


HR7423 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 41.3°
Azimuth: 2.8°
Direction: North

Celestial coordinates and finder chart of HR7423

HR7423 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7423 are provided in the following table:

19h 21m 40s
+79° 36’ 10”

The simplified sky map below shows the position of HR7423 in the sky:

Finder chart HR7423 star
Simplified finder chart for HR7423.

Visibility of HR7423 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR7423 is circumpolar and transits at 18:32 UTC (altitude: 61.9°)

Digitized Sky Survey image of HR7423

The image below is a photograph of HR7423 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 HR7423 is 0.013 arcsec per year in Right Ascension and -0.034 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7423 star
DSS2 image of HR7423. The red arrow shows the motion of HR7423 during the next 10000 years (2.17 arcmin in Right Ascension and -5.67 arcmin in declination);

Distance of HR7423 from the Sun and relative movement

HR7423 is distant 308.71 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

94.70 pc
308.71 ly
-3 km/s
0.013 arcsec/year
-0.034 arcsec/year

Spectral properties of HR7423

HR7423 belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR7423 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7423. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7423