HR8009

HR8009 is a double main-sequence star in the constellation of Cygnus.

HR8009 visual magnitude is 6.7. Because of its reltive faintness, HR8009 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 HR8009:

Color of HR8009 ⬤

Magnitude of HR8009 6.7

Class Main-sequence

VISIBILITY RIGHT NOW HR8009 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 50°.

Celestial coordinates and finder chart of HR8009

HR8009 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 HR8009 are provided in the following table:

Right Ascension J2000 20h 54m 22s

Declination J2000 +40° 42’ 11”

Galactic Longitude 82.21°

Galactic Latitude -2.72°

Constellation Cygnus

The simplified sky map below shows the position of HR8009 in the sky:

Simplified finder chart for HR8009.

Visibility of HR8009 from your location

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

HR8009 is circumpolar and transits at 08:12 UTC (altitude: 79.2°)

Digitized Sky Survey image of HR8009

The image below is a photograph of HR8009 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 HR8009 is 0.01 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8009. The red arrow shows the motion of HR8009 during the next 10000 years (1.67 arcmin in Right Ascension and 0.50 arcmin in declination);

Distance of HR8009 from the Sun and relative movement

HR8009 is distant 676.35 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 207.47 pc

Distance (light year) 676.35 ly

Heliocentric radial velocity -22 km/s

Proper Motion RA 0.01 arcsec/year

Proper Motion Dec 0.003 arcsec/year

Spectral properties of HR8009

HR8009 belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.12

Spectral Type B8V

Color Index (B-V) -0.07

Temperature of HR8009 11092K

The red dot in the diagram below shows where HR8009 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8009. Attribution: Richard Powell / CC BY-SA

HR8009 star system properties

HR8009 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR8009 double sysyem:

Main star magnitude 6.7

Secondary star magnitude 10.6

Magnitude difference 3.9

Separation 5.8 arcsec

Alternative designations of HR8009

Henry Draper Catalogue HD199218

SAO Catalogue SAO50209

Hipparcos Catalogue HIP103189

Durchmusterung Catalogue BD+40 4354

Aitken Double Star Catalogue ADS14413

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Other stars in Cygnus