HR7117

Altitude: 36.0° Azimuth: 5.4° Direction: North

HR7117 is a hypergiant star in the constellation of Draco.

HR7117 visual magnitude is 5.27. Because of its reltive faintness, HR7117 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 HR7117:

Color of HR7117 ⬤

Magnitude of HR7117 5.27

Class Hypergiant

VISIBILITY RIGHT NOW

HR7117 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 36.0°
Azimuth: 5.4°
Direction: North

Celestial coordinates and finder chart of HR7117

HR7117 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 HR7117 are provided in the following table:

Right Ascension J2000 18h 45m 46s

Declination J2000 +74° 05’ 08”

Galactic Longitude 105.11°

Galactic Latitude 26.39°

Constellation Draco

The simplified sky map below shows the position of HR7117 in the sky:

Simplified finder chart for HR7117.

Visibility of HR7117 from your location

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

HR7117 is circumpolar and transits at 01:56 UTC (altitude: 67.4°)

Digitized Sky Survey image of HR7117

The image below is a photograph of HR7117 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 HR7117 is 0.005 arcsec per year in Right Ascension and 0.077 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR7117. The red arrow shows the motion of HR7117 during the next 10000 years (0.83 arcmin in Right Ascension and 12.83 arcmin in declination);

Distance of HR7117 from the Sun and relative movement

HR7117 is distant 334.70 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 102.67 pc

Distance (light year) 334.70 ly

Heliocentric radial velocity 3 km/s

Proper Motion RA 0.005 arcsec/year

Proper Motion Dec 0.077 arcsec/year

Spectral properties of HR7117

HR7117 belongs to spectral class K0 and has a luminosity class of II corresponding to a hypergiant star.

Absolute magnitude 0.21

Spectral Type K0II

Color Index (B-V) 0.92

Temperature of HR7117 4943K

The red dot in the diagram below shows where HR7117 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7117. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7117

Henry Draper Catalogue HD174980

SAO Catalogue SAO9241

Hipparcos Catalogue HIP92056

Durchmusterung Catalogue BD+73 835

In Evidence

Other stars in Draco