HR6863

Altitude: -56.1° Azimuth: 19.9° Direction: North-North-East

HR6863 is a variable supergiant star in the constellation of Sagittarius.

HR6863 visual magnitude is 5.75. Because of its reltive faintness, HR6863 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 HR6863:

Color of HR6863 ⬤

Magnitude of HR6863 5.75

Class Supergiant

VISIBILITY RIGHT NOW

HR6863 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -56.1°
Azimuth: 19.9°
Direction: North-North-East

Celestial coordinates and finder chart of HR6863

HR6863 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 HR6863 are provided in the following table:

Right Ascension J2000 18h 21m 23s

Declination J2000 -18° 51’ 35”

Galactic Longitude 12.79°

Galactic Latitude -2.14°

Constellation Sagittarius

The simplified sky map below shows the position of HR6863 in the sky:

Simplified finder chart for HR6863.

Visibility of HR6863 from your location

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

Today's HR6863 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.9° RISE 14:35

Max altitude: 19.7° TRANSIT 18:52

Azimuth: 251.1° SET 23:09

Digitized Sky Survey image of HR6863

The image below is a photograph of HR6863 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 HR6863 is 0.011 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6863. The red arrow shows the motion of HR6863 during the next 10000 years (1.83 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of HR6863 from the Sun and relative movement

HR6863 is distant 1,293.65 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Distance (parsec) 396.83 pc

Distance (light year) 1,293.65 ly

Heliocentric radial velocity -3 km/s

Proper Motion RA 0.011 arcsec/year

Proper Motion Dec -0.009 arcsec/year

Spectral properties of HR6863

HR6863 belongs to spectral class F8 and has a luminosity class of I corresponding to a supergiant star.

Absolute magnitude -2.24

Spectral Type F8I

Color Index (B-V) 0.94

Temperature of HR6863 4892K

The red dot in the diagram below shows where HR6863 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6863. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6863

Henry Draper Catalogue HD168608

SAO Catalogue SAO161376

Hipparcos Catalogue HIP89968

Durchmusterung Catalogue BD-18 4926

General Catalogue of Variable Stars Y Sgr

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In Evidence

Other stars in Sagittarius