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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
SunriseRise: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sunny DaytimeWhat's Visible Now?
All Constellations » Sagittarius » 


Altitude: -1.7°   Azimuth: 184.7°   Direction: South

HR7422 is a variable giant star in the constellation of Sagittarius.

HR7422 visual magnitude is 5.89. Because of its reltive faintness, HR7422 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 HR7422 is 0.005 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7422 star
DSS2 image of HR7422. The red arrow shows the motion of HR7422 during the next 100000 years (8.33 arcmin in Right Ascension and -8.33 arcmin in declination);

Key facts about HR7422


HR7422 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.7°
Azimuth: 184.7°
Direction: South

Celestial coordinates and finder chart of HR7422

HR7422 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7422 are provided in the following table:

19h 34m 08s
-40° 02’ 04”

The simplified sky map below shows the position of HR7422 in the sky:

Finder chart HR7422 star
Simplified finder chart for HR7422.

Visibility of HR7422 from your location

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

HR7422 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR7422 from the Sun and relative movement

HR7422 is distant 435.25 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

133.51 pc
435.25 ly
12 km/s
0.005 arcsec/year
-0.005 arcsec/year

Spectral properties of HR7422

HR7422 belongs to spectral class A3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR7422 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7422. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7422