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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: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Draco » 

73 Draconis

Altitude: 39.5°   Azimuth: 13.2°   Direction: North-North-East

73 Draconis is a variable hypergiant star in the constellation of Draco.

73 Draconis visual magnitude is 5.2. Because of its reltive faintness, 73 Draconis 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 73 Draconis:


73 Draconis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 39.5°
Azimuth: 13.2°
Direction: North-North-East

Celestial coordinates and finder chart of 73 Draconis

73 Draconis 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 73 Draconis are provided in the following table:

20h 31m 30s
+74° 57’ 16”

The simplified sky map below shows the position of 73 Draconis in the sky:

Finder chart 73 Draconis star
Simplified finder chart for 73 Draconis.

Visibility of 73 Draconis from your location

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

73 Draconis is circumpolar and transits at 15:11 UTC (altitude: 66.5°)

Digitized Sky Survey image of 73 Draconis

The image below is a photograph of 73 Draconis 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 73 Draconis is 0.005 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 73 Draconis star
DSS2 image of 73 Draconis. The red arrow shows the motion of 73 Draconis during the next 10000 years (0.83 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of 73 Draconis from the Sun and relative movement

73 Draconis is distant 416.88 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

127.88 pc
416.88 ly
9 km/s
0.005 arcsec/year
-0.015 arcsec/year

Spectral properties of 73 Draconis

73 Draconis belongs to spectral class A0 73 Draconis is also a SrCrEu chemically peculiar star.


The red dot in the diagram below shows where 73 Draconis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 73 Draconis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 73 Draconis

73 Draconis