υ Draconis (upsilon Draconis)

Altitude: 70.2° Azimuth: 359.5° Direction: North

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

υ Draconis visual magnitude is 4.82. Because of its moderate brightness, υ 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 υ Draconis:

Color of υ Draconis ⬤

Magnitude of υ Draconis 4.82

Class Hypergiant

VISIBILITY RIGHT NOW

υ Draconis (upsilon Draconis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 70.2°
Azimuth: 359.5°
Direction: North

Celestial coordinates and finder chart of υ Draconis

υ 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 υ Draconis are provided in the following table:

Right Ascension J2000 18h 54m 23s

Declination J2000 +71° 17’ 49”

Galactic Longitude 102.15°

Galactic Latitude 25.36°

Constellation Draco

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

Finder chart υ Draconis (upsilon Draconis) star

Simplified finder chart for υ Draconis (upsilon Draconis).

Visibility of υ Draconis from your location

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

υ Draconis (upsilon Draconis) is circumpolar and transits at 13:34 UTC (altitude: 70.2°)

Digitized Sky Survey image of υ Draconis

The image below is a photograph of υ 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 υ Draconis is 0.049 arcsec per year in Right Ascension and 0.044 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of υ Draconis (upsilon Draconis) star

DSS2 image of υ Draconis. The red arrow shows the motion of υ Draconis during the next 10000 years (8.17 arcmin in Right Ascension and 7.33 arcmin in declination);

Distance of υ Draconis from the Sun and relative movement

υ Draconis is distant 344.24 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 105.60 pc

Distance (light year) 344.24 ly

Heliocentric radial velocity -7 km/s

Proper Motion RA 0.049 arcsec/year

Proper Motion Dec 0.044 arcsec/year

Spectral properties of υ Draconis

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

Absolute magnitude -0.30

Spectral Type K0III

Color Index (B-V) 1.15

Temperature of υ Draconis 4409K

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

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

Alternative designations of υ Draconis

Bayer designation υ Draconis
(upsilon Draconis)

Flamsteed designation 52 Draconis

Henry Draper Catalogue HD176524

SAO Catalogue SAO9283

Hipparcos Catalogue HIP92782

Durchmusterung Catalogue BD+71 915

FK5 Catalogue 714

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