18 Draconis

Altitude: 71.3° Azimuth: 324.4° Direction: North-West

18 Draconis is a hypergiant star in the constellation of Draco.

18 Draconis visual magnitude is 4.83. Because of its moderate brightness, 18 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 18 Draconis:

Color of 18 Draconis ⬤

Magnitude of 18 Draconis 4.83

Class Hypergiant

VISIBILITY RIGHT NOW

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

Altitude: 71.3°
Azimuth: 324.4°
Direction: North-West

Celestial coordinates and finder chart of 18 Draconis

18 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 18 Draconis are provided in the following table:

Right Ascension J2000 16h 40m 55s

Declination J2000 +64° 35’ 21”

Galactic Longitude 95.57°

Galactic Latitude 38.16°

Constellation Draco

The simplified sky map below shows the position of 18 Draconis in the sky:

Simplified finder chart for 18 Draconis.

Visibility of 18 Draconis from your location

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

18 Draconis is circumpolar and transits at 23:36 UTC (altitude: 76.9°)

Digitized Sky Survey image of 18 Draconis

The image below is a photograph of 18 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 18 Draconis is 0.001 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 18 Draconis. The red arrow shows the motion of 18 Draconis during the next 10000 years (0.17 arcmin in Right Ascension and -2.17 arcmin in declination);

Distance of 18 Draconis from the Sun and relative movement

18 Draconis is distant 680.58 light years from the Sun

Distance (parsec) 208.77 pc

Distance (light year) 680.58 ly

Proper Motion RA 0.001 arcsec/year

Proper Motion Dec -0.013 arcsec/year

Spectral properties of 18 Draconis

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

Absolute magnitude -1.77

Spectral Type K0III

Color Index (B-V) 1.22

Temperature of 18 Draconis 4270K

The red dot in the diagram below shows where 18 Draconis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 18 Draconis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 18 Draconis

Flamsteed designation 18 Draconis

Henry Draper Catalogue HD151101

SAO Catalogue SAO17188

Hipparcos Catalogue HIP81660

Durchmusterung Catalogue BD+64 1145

FK5 Catalogue 3326

In Evidence

Other stars in Draco