Your guide to the Solar System and the night sky
By donating now you help keep this site alive and free from ads. Please consider supporting this project.
🌎  Observing from: Greenwich, United Kingdom [change]

ο Draconis (omicron Draconis)

ο Draconis is a variable and multiple giant star in the constellation of Draco.

ο Draconis visual magnitude is 4.66. Because of its moderate brightness, ο Draconis should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about ο Draconis:

4.66
Giant
ο Draconis (omicron Draconis) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 21°.

Celestial coordinates and finder chart of ο Draconis

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

18h 51m 12s
+59° 23’ 17”
89.31°
23.14°
Draco

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

Finder chart ο Draconis (omicron Draconis) star
Simplified finder chart for ο Draconis (omicron Draconis).

Visibility of ο Draconis from your location

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

ο Draconis (omicron Draconis) is circumpolar and transits at 09:42 UTC (altitude: 82.1°)

Digitized Sky Survey image of ο Draconis

The image below is a photograph of ο 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 ο Draconis is 0.079 arcsec per year in Right Ascension and 0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ο Draconis (omicron Draconis) star
DSS2 image of ο Draconis. The red arrow shows the motion of ο Draconis during the next 10000 years (13.17 arcmin in Right Ascension and 4.50 arcmin in declination);

Distance of ο Draconis from the Sun and relative movement

ο Draconis is distant 322.13 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

98.81 pc
322.13 ly
-20 km/s
0.079 arcsec/year
0.027 arcsec/year

Spectral properties of ο Draconis

ο Draconis belongs to spectral class G9 and has a luminosity class of III corresponding to a giant star.

-0.31
G9III
4328K

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

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

ο Draconis star system properties

ο Draconis is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the ο Draconis double sysyem:

4.66
8.06
3.4
34.6 arcsec

Alternative designations of ο Draconis

ο Draconis
(omicron Draconis)
47 Draconis
SAO31218
SAO31218