HR6803

HR6803 is a variable and double main-sequence star in the constellation of Hercules.

HR6803 visual magnitude is 6.09. Because of its reltive faintness, HR6803 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 HR6803:

Color of HR6803 ⬤

Magnitude of HR6803 6.09

Class Main-sequence

VISIBILITY RIGHT NOW HR6803 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 39°.

Celestial coordinates and finder chart of HR6803

HR6803 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6803 are provided in the following table:

Right Ascension J2000 18h 10m 08s

Declination J2000 +16° 28’ 36”

Galactic Longitude 43.39°

Galactic Latitude 16.4°

Constellation Hercules

The simplified sky map below shows the position of HR6803 in the sky:

Simplified finder chart for HR6803.

Visibility of HR6803 from your location

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

Today's HR6803 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 73.5° RISE 23:00

Max altitude: 55.0° TRANSIT 6:28

Azimuth: 286.5° SET 13:53

RIGHT NOW HR6803 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6803

The image below is a photograph of HR6803 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 HR6803 is -0.004 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6803. The red arrow shows the motion of HR6803 during the next 100000 years (-6.67 arcmin in Right Ascension and -11.67 arcmin in declination);

Distance of HR6803 from the Sun and relative movement

HR6803 is distant 1,502.30 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

Distance (parsec) 460.83 pc

Distance (light year) 1,502.30 ly

Heliocentric radial velocity -13 km/s

Proper Motion RA -0.004 arcsec/year

Proper Motion Dec -0.007 arcsec/year

Spectral properties of HR6803

HR6803 belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -2.23

Spectral Type B9V

Color Index (B-V)

Temperature of HR6803 10125K

The red dot in the diagram below shows where HR6803 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6803. Attribution: Richard Powell / CC BY-SA

HR6803 star system properties

HR6803 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR6803 double sysyem:

Main star magnitude 6.09

Secondary star magnitude 6.89

Magnitude difference 0.8

Separation 1.2 arcsec

Alternative designations of HR6803

Henry Draper Catalogue HD166479

SAO Catalogue SAO103443

Hipparcos Catalogue HIP89023

Durchmusterung Catalogue BD+16 3390

General Catalogue of Variable Stars 10311

Aitken Double Star Catalogue ADS11123

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In Evidence

Other stars in Hercules