ω Draconis (omega Draconis)

ω Draconis is a double main-sequence star in the constellation of Draco.

ω Draconis visual magnitude is 4.8. Because of its moderate brightness, ω 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 ω Draconis:

Color of ω Draconis ⬤

Magnitude of ω Draconis 4.8

Class Main-sequence

VISIBILITY RIGHT NOW ω Draconis (omega Draconis) is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 69°.

Celestial coordinates and finder chart of ω Draconis

ω 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 ω Draconis are provided in the following table:

Right Ascension J2000 17h 36m 57s

Declination J2000 +68° 45’ 29”

Galactic Longitude 99.08°

Galactic Latitude 31.87°

Constellation Draco

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

Finder chart ω Draconis (omega Draconis) star

Simplified finder chart for ω Draconis (omega Draconis).

Visibility of ω Draconis from your location

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

ω Draconis (omega Draconis) is circumpolar and transits at 00:59 UTC (altitude: 72.7°)

Digitized Sky Survey image of ω Draconis

The image below is a photograph of ω 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 ω Draconis is 0.002 arcsec per year in Right Ascension and 0.323 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ω Draconis (omega Draconis) star

DSS2 image of ω Draconis. The red arrow shows the motion of ω Draconis during the next 1000 years (0.03 arcmin in Right Ascension and 5.38 arcmin in declination);

Distance of ω Draconis from the Sun and relative movement

ω Draconis is distant 76.49 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 23.46 pc

Distance (light year) 76.49 ly

Heliocentric radial velocity -14 km/s

Proper Motion RA 0.002 arcsec/year

Proper Motion Dec 0.323 arcsec/year

Spectral properties of ω Draconis

ω Draconis belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 2.95

Spectral Type F5V

Color Index (B-V) 0.43

Temperature of ω Draconis 6724K

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

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

ω Draconis star system properties

ω 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 ω Draconis double sysyem:

Main star magnitude 4.8

Secondary star magnitude 13.1

Magnitude difference 8.3

Separation 72.3 arcsec

Alternative designations of ω Draconis

Bayer designation ω Draconis
(omega Draconis)

Flamsteed designation 28 Draconis

Henry Draper Catalogue HD160922

SAO Catalogue SAO17576

Hipparcos Catalogue HIP86201

Durchmusterung Catalogue BD+68 949

Gliese Catalogue NN 4017

FK5 Catalogue 664

In Evidence

Other stars in Draco