HR6800

HR6800 is a giant star in the constellation of Ophiuchus.

HR6800 visual magnitude is 5.51. Because of its reltive faintness, HR6800 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 HR6800:

Color of HR6800 ⬤

Magnitude of HR6800 5.51

Class Giant

VISIBILITY RIGHT NOW HR6800 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 37°.

Celestial coordinates and finder chart of HR6800

HR6800 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 HR6800 are provided in the following table:

Right Ascension J2000 18h 10m 40s

Declination J2000 +03° 19’ 27”

Galactic Longitude 31.24°

Galactic Latitude 10.58°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6800 in the sky:

Simplified finder chart for HR6800.

Visibility of HR6800 from your location

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

Today's HR6800 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 86.7° RISE 23:50

Max altitude: 41.8° TRANSIT 6:08

Azimuth: 273.3° SET 12:23

RIGHT NOW HR6800 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6800

The image below is a photograph of HR6800 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 HR6800 is 0.021 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 HR6800. The red arrow shows the motion of HR6800 during the next 10000 years (3.50 arcmin in Right Ascension and -0.50 arcmin in declination);

Distance of HR6800 from the Sun and relative movement

HR6800 is distant 412.14 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

Distance (parsec) 126.42 pc

Distance (light year) 412.14 ly

Heliocentric radial velocity 10 km/s

Proper Motion RA 0.021 arcsec/year

Proper Motion Dec -0.003 arcsec/year

Spectral properties of HR6800

HR6800 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.00

Spectral Type K2III

Color Index (B-V) 1.19

Temperature of HR6800 4328K

The red dot in the diagram below shows where HR6800 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6800. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6800

Henry Draper Catalogue HD166460

SAO Catalogue SAO123212

Hipparcos Catalogue HIP89065

Durchmusterung Catalogue BD+03 3620

FK5 Catalogue 3445

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In Evidence

Other stars in Ophiuchus