HR7854

Altitude: 72.2° Azimuth: 75.9° Direction: East-North-East

HR7854 is a hypergiant star in the constellation of Cygnus.

HR7854 visual magnitude is 6.18. Because of its reltive faintness, HR7854 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 HR7854:

Color of HR7854 ⬤

Magnitude of HR7854 6.18

Class Hypergiant

VISIBILITY RIGHT NOW

HR7854 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 72.2°
Azimuth: 75.9°
Direction: East-North-East

Celestial coordinates and finder chart of HR7854

HR7854 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 HR7854 are provided in the following table:

Right Ascension J2000 20h 31m 21s

Declination J2000 +52° 18’ 34”

Galactic Longitude 88.94°

Galactic Latitude 7.53°

Constellation Cygnus

The simplified sky map below shows the position of HR7854 in the sky:

Simplified finder chart for HR7854.

Visibility of HR7854 from your location

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

HR7854 is circumpolar and transits at 03:18 UTC (altitude: 89.2°)

Digitized Sky Survey image of HR7854

The image below is a photograph of HR7854 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 HR7854 is 0.036 arcsec per year in Right Ascension and 0.068 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR7854. The red arrow shows the motion of HR7854 during the next 10000 years (6.00 arcmin in Right Ascension and 11.33 arcmin in declination);

Distance of HR7854 from the Sun and relative movement

HR7854 is distant 347.92 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

Distance (parsec) 106.72 pc

Distance (light year) 347.92 ly

Heliocentric radial velocity -10 km/s

Proper Motion RA 0.036 arcsec/year

Proper Motion Dec 0.068 arcsec/year

Spectral properties of HR7854

HR7854 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 1.04

Spectral Type K0III

Color Index (B-V) 1.01

Temperature of HR7854 4719K

The red dot in the diagram below shows where HR7854 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7854. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7854

Henry Draper Catalogue HD195820

SAO Catalogue SAO32649

Hipparcos Catalogue HIP101245

Durchmusterung Catalogue BD+51 2882

In Evidence

Other stars in Cygnus