HR8306

HR8306 is a variable giant star in the constellation of Cygnus.

HR8306 visual magnitude is 5.49. Because of its reltive faintness, HR8306 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 HR8306:

Color of HR8306 ⬤

Magnitude of HR8306 5.49

Class Giant

VISIBILITY RIGHT NOW HR8306 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 29°.

Celestial coordinates and finder chart of HR8306

HR8306 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 HR8306 are provided in the following table:

Right Ascension J2000 21h 43m 06s

Declination J2000 +41° 09’ 18”

Galactic Longitude 89°

Galactic Latitude -8.99°

Constellation Cygnus

The simplified sky map below shows the position of HR8306 in the sky:

Simplified finder chart for HR8306.

Visibility of HR8306 from your location

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

HR8306 is circumpolar and transits at 09:52 UTC (altitude: 79.7°)

Digitized Sky Survey image of HR8306

The image below is a photograph of HR8306 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 HR8306 is -0.023 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8306. The red arrow shows the motion of HR8306 during the next 10000 years (-3.83 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of HR8306 from the Sun and relative movement

HR8306 is distant 587.39 light years from the Sun and it is moving towards the Sun at the speed of 23 kilometers per second.

Distance (parsec) 180.18 pc

Distance (light year) 587.39 ly

Heliocentric radial velocity -23 km/s

Proper Motion RA -0.023 arcsec/year

Proper Motion Dec -0.015 arcsec/year

Spectral properties of HR8306

HR8306 belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.79

Spectral Type M2III

Color Index (B-V) 1.59

Temperature of HR8306 3663K

The red dot in the diagram below shows where HR8306 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8306. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8306

Henry Draper Catalogue HD206749

SAO Catalogue SAO51221

Hipparcos Catalogue HIP107235

Durchmusterung Catalogue BD+40 4623

General Catalogue of Variable Stars 13857

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Other stars in Cygnus