55 Draconis

Altitude: 75.0° Azimuth: 347.8° Direction: North-North-West

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

55 Draconis visual magnitude is 6.25. Because of its reltive faintness, 55 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 55 Draconis:

Color of 55 Draconis ⬤

Magnitude of 55 Draconis 6.25

Class Hypergiant

VISIBILITY RIGHT NOW

55 Draconis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 75.0°
Azimuth: 347.8°
Direction: North-North-West

Celestial coordinates and finder chart of 55 Draconis

55 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 55 Draconis are provided in the following table:

Right Ascension J2000 19h 09m 45s

Declination J2000 +65° 58’ 42”

Galactic Longitude 96.82°

Galactic Latitude 22.8°

Constellation Draco

The simplified sky map below shows the position of 55 Draconis in the sky:

Simplified finder chart for 55 Draconis.

Visibility of 55 Draconis from your location

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

55 Draconis is circumpolar and transits at 02:04 UTC (altitude: 75.5°)

Digitized Sky Survey image of 55 Draconis

The image below is a photograph of 55 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 55 Draconis is 0.001 arcsec per year in Right Ascension and 0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 55 Draconis. The red arrow shows the motion of 55 Draconis during the next 10000 years (0.17 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of 55 Draconis from the Sun and relative movement

55 Draconis is distant 321.18 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 98.52 pc

Distance (light year) 321.18 ly

Heliocentric radial velocity -22 km/s

Proper Motion RA 0.001 arcsec/year

Proper Motion Dec 0.03 arcsec/year

Spectral properties of 55 Draconis

55 Draconis belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 1.28

Spectral Type A0V

Color Index (B-V) 0

Temperature of 55 Draconis 10125K

The red dot in the diagram below shows where 55 Draconis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 55 Draconis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 55 Draconis

Flamsteed designation 55 Draconis

Henry Draper Catalogue HD179933

SAO Catalogue SAO18187

Hipparcos Catalogue HIP94140

Durchmusterung Catalogue BD+65 1326

FK5 Catalogue 3531

In Evidence

Other stars in Draco