HR8185

HR8185 is a hypergiant star in the constellation of Cygnus.

HR8185 visual magnitude is 5.69. Because of its reltive faintness, HR8185 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 HR8185:

Color of HR8185 ⬤

Magnitude of HR8185 5.69

Class Hypergiant

VISIBILITY RIGHT NOW HR8185 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 13°.

Celestial coordinates and finder chart of HR8185

HR8185 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 HR8185 are provided in the following table:

Right Ascension J2000 21h 22m 00s

Declination J2000 +49° 23’ 20”

Galactic Longitude 91.9°

Galactic Latitude -0.44°

Constellation Cygnus

The simplified sky map below shows the position of HR8185 in the sky:

Simplified finder chart for HR8185.

Visibility of HR8185 from your location

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

HR8185 is circumpolar and transits at 04:52 UTC (altitude: 87.9°)

Digitized Sky Survey image of HR8185

The image below is a photograph of HR8185 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 HR8185 is 0.034 arcsec per year in Right Ascension and 0.067 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8185. The red arrow shows the motion of HR8185 during the next 10000 years (5.67 arcmin in Right Ascension and 11.17 arcmin in declination);

Distance of HR8185 from the Sun and relative movement

HR8185 is distant 328.30 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

Distance (parsec) 100.70 pc

Distance (light year) 328.30 ly

Heliocentric radial velocity -2 km/s

Proper Motion RA 0.034 arcsec/year

Proper Motion Dec 0.067 arcsec/year

Spectral properties of HR8185

HR8185 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 0.67

Spectral Type K0III

Color Index (B-V) 1.1

Temperature of HR8185 4515K

The red dot in the diagram below shows where HR8185 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8185. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8185

Henry Draper Catalogue HD203644

SAO Catalogue SAO50761

Hipparcos Catalogue HIP105497

Durchmusterung Catalogue BD+48 3357

In Evidence

Other stars in Cygnus