39 Draconis

39 Draconis is a multiple main-sequence star in the constellation of Draco.

39 Draconis visual magnitude is 4.98. Because of its moderate brightness, 39 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 39 Draconis:

Color of 39 Draconis ⬤

Magnitude of 39 Draconis 4.98

Class Main-sequence

VISIBILITY RIGHT NOW 39 Draconis is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 81°.

Celestial coordinates and finder chart of 39 Draconis

39 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 39 Draconis are provided in the following table:

Right Ascension J2000 18h 23m 54s

Declination J2000 +58° 48’ 02”

Galactic Longitude 87.88°

Galactic Latitude 26.44°

Constellation Draco

The simplified sky map below shows the position of 39 Draconis in the sky:

Simplified finder chart for 39 Draconis.

Visibility of 39 Draconis from your location

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

39 Draconis is circumpolar and transits at 01:54 UTC (altitude: 82.7°)

Digitized Sky Survey image of 39 Draconis

The image below is a photograph of 39 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 39 Draconis is -0.039 arcsec per year in Right Ascension and 0.06 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 39 Draconis. The red arrow shows the motion of 39 Draconis during the next 10000 years (-6.50 arcmin in Right Ascension and 10.00 arcmin in declination);

Distance of 39 Draconis from the Sun and relative movement

39 Draconis is distant 188.33 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 57.77 pc

Distance (light year) 188.33 ly

Heliocentric radial velocity -15 km/s

Proper Motion RA -0.039 arcsec/year

Proper Motion Dec 0.06 arcsec/year

Spectral properties of 39 Draconis

39 Draconis belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 1.17

Spectral Type A1V

Color Index (B-V) 0.08

Temperature of 39 Draconis 9226K

The red dot in the diagram below shows where 39 Draconis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 39 Draconis. Attribution: Richard Powell / CC BY-SA

39 Draconis star system properties

39 Draconis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 39 Draconis double sysyem:

Main star magnitude 4.98

Secondary star magnitude 7.78

Magnitude difference 2.8

Separation 3.8 arcsec

Alternative designations of 39 Draconis

Flamsteed designation 39 Draconis

Henry Draper Catalogue HD170073

SAO Catalogue SAO30949

Hipparcos Catalogue HIP90156

Durchmusterung Catalogue BD+58 1809

Aitken Double Star Catalogue ADS11336

In Evidence

Other stars in Draco