HR7861

HR7861 is a giant star in the constellation of Cygnus.

HR7861 visual magnitude is 6.6. Because of its reltive faintness, HR7861 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 HR7861:

Color of HR7861 ⬤

Magnitude of HR7861 6.6

Class Giant

VISIBILITY RIGHT NOW HR7861 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 34°.

Celestial coordinates and finder chart of HR7861

HR7861 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 HR7861 are provided in the following table:

Right Ascension J2000 20h 32m 52s

Declination J2000 +43° 11’ 30”

Galactic Longitude 81.69°

Galactic Latitude 1.96°

Constellation Cygnus

The simplified sky map below shows the position of HR7861 in the sky:

Simplified finder chart for HR7861.

Visibility of HR7861 from your location

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

HR7861 is circumpolar and transits at 03:51 UTC (altitude: 81.7°)

Digitized Sky Survey image of HR7861

The image below is a photograph of HR7861 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 HR7861 is 0.007 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR7861. The red arrow shows the motion of HR7861 during the next 100000 years (11.67 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR7861 from the Sun and relative movement

HR7861 is distant 1,781.42 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

Distance (parsec) 546.45 pc

Distance (light year) 1,781.42 ly

Heliocentric radial velocity -17 km/s

Proper Motion RA 0.007 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of HR7861

HR7861 belongs to spectral class B4 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -2.09

Spectral Type B4III

Color Index (B-V) -0.11

Temperature of HR7861 11744K

The red dot in the diagram below shows where HR7861 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7861. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7861

Henry Draper Catalogue HD195986

SAO Catalogue SAO49772

Hipparcos Catalogue HIP101383

Durchmusterung Catalogue BD+42 3778

FK5 Catalogue 3644

In Evidence

Other stars in Cygnus