15 Draconis

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

15 Draconis visual magnitude is 5. Because of its moderate brightness, 15 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 15 Draconis:

Color of 15 Draconis ⬤

Magnitude of 15 Draconis 5

Class Hypergiant

VISIBILITY RIGHT NOW 15 Draconis is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 35°.

Celestial coordinates and finder chart of 15 Draconis

15 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 15 Draconis are provided in the following table:

Right Ascension J2000 16h 27m 59s

Declination J2000 +68° 46’ 05”

Galactic Longitude 101.11°

Galactic Latitude 37.87°

Constellation Draco

The simplified sky map below shows the position of 15 Draconis in the sky:

Simplified finder chart for 15 Draconis.

Visibility of 15 Draconis from your location

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

15 Draconis is circumpolar and transits at 23:55 UTC (altitude: 72.7°)

Digitized Sky Survey image of 15 Draconis

The image below is a photograph of 15 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 15 Draconis is -0.025 arcsec per year in Right Ascension and 0.036 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 15 Draconis. The red arrow shows the motion of 15 Draconis during the next 10000 years (-4.17 arcmin in Right Ascension and 6.00 arcmin in declination);

Distance of 15 Draconis from the Sun and relative movement

15 Draconis is distant 490.96 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 150.60 pc

Distance (light year) 490.96 ly

Heliocentric radial velocity -7 km/s

Proper Motion RA -0.025 arcsec/year

Proper Motion Dec 0.036 arcsec/year

Spectral properties of 15 Draconis

15 Draconis belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude -0.89

Spectral Type A0III

Color Index (B-V) -0.06

Temperature of 15 Draconis 10941K

The red dot in the diagram below shows where 15 Draconis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 15 Draconis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 15 Draconis

Flamsteed designation 15 Draconis

Henry Draper Catalogue HD149212

SAO Catalogue SAO17107

Hipparcos Catalogue HIP80650

Durchmusterung Catalogue BD+69 850

FK5 Catalogue 619

In Evidence

Other stars in Draco