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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
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All Constellations » Draco » 

27 Draconis

Altitude: 70.8°   Azimuth: 337.5°   Direction: North-North-West

27 Draconis is a double hypergiant star in the constellation of Draco.

27 Draconis visual magnitude is 5.05. Because of its reltive faintness, 27 Draconis 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 27 Draconis is -0.012 arcsec per year in Right Ascension and 0.134 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 27 Draconis star
DSS2 image of 27 Draconis. The red arrow shows the motion of 27 Draconis during the next 1000 years (-0.20 arcmin in Right Ascension and 2.23 arcmin in declination);

Key facts about 27 Draconis

5.05
Hypergiant

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

Altitude: 70.8°
Azimuth: 337.5°
Direction: North-North-West

Celestial coordinates and finder chart of 27 Draconis

27 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 27 Draconis are provided in the following table:

17h 31m 57s
+68° 08’ 06”
98.42°
32.4°
Draco

The simplified sky map below shows the position of 27 Draconis in the sky:

Finder chart 27 Draconis star
Simplified finder chart for 27 Draconis.

Visibility of 27 Draconis from your location

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

27 Draconis is circumpolar and transits at 05:42 UTC (altitude: 73.3°)

Distance of 27 Draconis from the Sun and relative movement

27 Draconis is distant 217.04 light years from the Sun and it is moving towards the Sun at the speed of 73 kilometers per second.

66.58 pc
217.04 ly
-73 km/s
-0.012 arcsec/year
0.134 arcsec/year

Spectral properties of 27 Draconis

27 Draconis belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

0.93
K0III
4559K

The red dot in the diagram below shows where 27 Draconis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 27 Draconis. Attribution: Richard Powell / CC BY-SA

27 Draconis star system properties

27 Draconis is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 27 Draconis double sysyem:

5.05
11.25
6.2
163.4 arcsec

Alternative designations of 27 Draconis

27 Draconis
SAO17526
SAO17526