HR6983

HR6983 is a multiple hypergiant star in the constellation of Draco.

HR6983 visual magnitude is 5.36. Because of its reltive faintness, HR6983 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 HR6983:

Color of HR6983 ⬤

Magnitude of HR6983 5.36

Class Hypergiant

VISIBILITY RIGHT NOW HR6983 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 76°.

Celestial coordinates and finder chart of HR6983

HR6983 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 HR6983 are provided in the following table:

Right Ascension J2000 18h 33m 56s

Declination J2000 +52° 21’ 12”

Galactic Longitude 81.23°

Galactic Latitude 23.73°

Constellation Draco

The simplified sky map below shows the position of HR6983 in the sky:

Simplified finder chart for HR6983.

Visibility of HR6983 from your location

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

HR6983 is circumpolar and transits at 01:56 UTC (altitude: 89.1°)

Digitized Sky Survey image of HR6983

The image below is a photograph of HR6983 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 HR6983 is -0.002 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6983. The red arrow shows the motion of HR6983 during the next 100000 years (-3.33 arcmin in Right Ascension and 13.33 arcmin in declination);

Distance of HR6983 from the Sun and relative movement

HR6983 is distant 795.12 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

Distance (parsec) 243.90 pc

Distance (light year) 795.12 ly

Heliocentric radial velocity -24 km/s

Proper Motion RA -0.002 arcsec/year

Proper Motion Dec 0.008 arcsec/year

Spectral properties of HR6983

HR6983 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude -1.58

Spectral Type K0III

Color Index (B-V) 1.09

Temperature of HR6983 4537K

The red dot in the diagram below shows where HR6983 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6983. Attribution: Richard Powell / CC BY-SA

HR6983 star system properties

HR6983 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR6983 double sysyem:

Main star magnitude 5.36

Secondary star magnitude 5.46

Magnitude difference 0.1

Separation 0.3 arcsec

Alternative designations of HR6983

Henry Draper Catalogue HD171779

SAO Catalogue SAO31051

Hipparcos Catalogue HIP91013

Durchmusterung Catalogue BD+52 2238

Aitken Double Star Catalogue ADS11468

In Evidence

Other stars in Draco