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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: 6:04  
clear_day Transit: 12:06  
SunsetSet: 18:09
sunny DaytimeWhat's Visible Now?
All Constellations » Draco » 

HR7224

Altitude: 65.3°   Azimuth: 330.3°   Direction: North-North-West

HR7224 is a variable hypergiant star in the constellation of Draco.

HR7224 visual magnitude is 6.52. Because of its reltive faintness, HR7224 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 HR7224 is 0.005 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7224 star
DSS2 image of HR7224. The red arrow shows the motion of HR7224 during the next 100000 years (8.33 arcmin in Right Ascension and 6.67 arcmin in declination);

Key facts about HR7224

6.52
Hypergiant

HR7224 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 65.3°
Azimuth: 330.3°
Direction: North-North-West

Celestial coordinates and finder chart of HR7224

HR7224 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 HR7224 are provided in the following table:

18h 58m 52s
+69° 31’ 51”
100.31°
24.65°
Draco

The simplified sky map below shows the position of HR7224 in the sky:

Finder chart HR7224 star
Simplified finder chart for HR7224.

Visibility of HR7224 from your location

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

HR7224 is circumpolar and transits at 07:09 UTC (altitude: 71.9°)

Distance of HR7224 from the Sun and relative movement

HR7224 is distant 628.13 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

192.68 pc
628.13 ly
-15 km/s
0.005 arcsec/year
0.004 arcsec/year

Spectral properties of HR7224

HR7224 belongs to spectral class A0 HR7224 is also a Si chemically peculiar star.

0.10
A0
12489K

The red dot in the diagram below shows where HR7224 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7224. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7224

SAO18103
SAO18103