θ Draconis (theta Draconis)

Altitude: 35.6° Azimuth: 321.8° Direction: North-West

θ Draconis is a sub-giant star in the constellation of Draco.

θ Draconis visual magnitude is 4.01. Because of its moderate brightness, θ 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 θ Draconis:

Color of θ Draconis ⬤

Magnitude of θ Draconis 4.01

Class Sub-giant

VISIBILITY RIGHT NOW

θ Draconis (theta Draconis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 35.6°
Azimuth: 321.8°
Direction: North-West

Celestial coordinates and finder chart of θ Draconis

θ 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 θ Draconis are provided in the following table:

Right Ascension J2000 16h 01m 53s

Declination J2000 +58° 33’ 55”

Galactic Longitude 90.18°

Galactic Latitude 44.58°

Constellation Draco

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

Finder chart θ Draconis (theta Draconis) star

Simplified finder chart for θ Draconis (theta Draconis).

Visibility of θ Draconis from your location

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

θ Draconis (theta Draconis) is circumpolar and transits at 15:17 UTC (altitude: 82.9°)

Digitized Sky Survey image of θ Draconis

The image below is a photograph of θ 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 θ Draconis is -0.32 arcsec per year in Right Ascension and 0.335 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of θ Draconis (theta Draconis) star

DSS2 image of θ Draconis. The red arrow shows the motion of θ Draconis during the next 1000 years (-5.33 arcmin in Right Ascension and 5.58 arcmin in declination);

Distance of θ Draconis from the Sun and relative movement

θ Draconis is distant 68.22 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 20.92 pc

Distance (light year) 68.22 ly

Heliocentric radial velocity -9 km/s

Proper Motion RA -0.32 arcsec/year

Proper Motion Dec 0.335 arcsec/year

Spectral properties of θ Draconis

θ Draconis belongs to spectral class F8 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 2.41

Spectral Type F8IV

Color Index (B-V) 0.52

Temperature of θ Draconis 6300K

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

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

Alternative designations of θ Draconis

Bayer designation θ Draconis
(theta Draconis)

Flamsteed designation 13 Draconis

Henry Draper Catalogue HD144284

SAO Catalogue SAO29765

Hipparcos Catalogue HIP78527

Durchmusterung Catalogue BD+58 1608

Gliese Catalogue Gl 609.1

FK5 Catalogue 598

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In Evidence

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