75 Draconis

75 Draconis is a multiple giant star in the constellation of Draco.

75 Draconis visual magnitude is 5.46. Because of its reltive faintness, 75 Draconis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 75 Draconis:

Color of 75 Draconis ⬤

Magnitude of 75 Draconis 5.46

Class Giant

VISIBILITY RIGHT NOW 75 Draconis is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 43°.

Celestial coordinates and finder chart of 75 Draconis

75 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 75 Draconis are provided in the following table:

Right Ascension J2000 20h 28m 14s

Declination J2000 +81° 25’ 22”

Galactic Longitude 114.41°

Galactic Latitude 23.36°

Constellation Draco

The simplified sky map below shows the position of 75 Draconis in the sky:

Simplified finder chart for 75 Draconis.

Visibility of 75 Draconis from your location

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

75 Draconis is circumpolar and transits at 04:02 UTC (altitude: 60.1°)

Digitized Sky Survey image of 75 Draconis

The image below is a photograph of 75 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 75 Draconis is 0.033 arcsec per year in Right Ascension and 0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 75 Draconis. The red arrow shows the motion of 75 Draconis during the next 10000 years (5.50 arcmin in Right Ascension and 2.50 arcmin in declination);

Distance of 75 Draconis from the Sun and relative movement

75 Draconis is distant 455.94 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

Distance (parsec) 139.86 pc

Distance (light year) 455.94 ly

Heliocentric radial velocity -6 km/s

Proper Motion RA 0.033 arcsec/year

Proper Motion Dec 0.015 arcsec/year

Spectral properties of 75 Draconis

75 Draconis belongs to spectral class G9 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.27

Spectral Type G9III

Color Index (B-V) 1.02

Temperature of 75 Draconis 4695K

The red dot in the diagram below shows where 75 Draconis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 75 Draconis. Attribution: Richard Powell / CC BY-SA

75 Draconis star system properties

75 Draconis is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 75 Draconis double sysyem:

Main star magnitude 5.46

Secondary star magnitude 6.76

Magnitude difference 1.3

Separation 197.7 arcsec

Alternative designations of 75 Draconis

Flamsteed designation 75 Draconis

Henry Draper Catalogue HD196787

SAO Catalogue SAO3408

Hipparcos Catalogue HIP100965

Durchmusterung Catalogue BD+80 659

FK5 Catalogue 3963

In Evidence

Other stars in Draco