ο Draconis (omicron Draconis)

Altitude: 51.2° Azimuth: 310.0° Direction: North-West

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:

Color of ο Draconis ⬤

Magnitude of ο Draconis 4.66

Class Giant

VISIBILITY RIGHT NOW

ο Draconis (omicron Draconis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 51.2°
Azimuth: 310.0°
Direction: North-West

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:

Right Ascension J2000 18h 51m 12s

Declination J2000 +59° 23’ 17”

Galactic Longitude 89.31°

Galactic Latitude 23.14°

Constellation 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 edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

ο Draconis (omicron Draconis) is circumpolar and transits at 14:18 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.

Distance (parsec) 98.81 pc

Distance (light year) 322.13 ly

Heliocentric radial velocity -20 km/s

Proper Motion RA 0.079 arcsec/year

Proper Motion Dec 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.

Absolute magnitude -0.31

Spectral Type G9III

Color Index (B-V) 1.19

Temperature of ο Draconis 4328K

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

Main star magnitude 4.66

Secondary star magnitude 8.06

Magnitude difference 3.4

Separation 34.6 arcsec

Alternative designations of ο Draconis

Bayer designation ο Draconis
(omicron Draconis)

Flamsteed designation 47 Draconis

Henry Draper Catalogue HD175306

SAO Catalogue SAO31218

Hipparcos Catalogue HIP92512

Durchmusterung Catalogue BD+59 1925

FK5 Catalogue 707

General Catalogue of Variable Stars Omi Dra

Aitken Double Star Catalogue ADS11779

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Other stars in Draco