HR6802

Altitude: -7.3° Azimuth: 231.7° Direction: South-West

HR6802 is a variable sub-giant star in the constellation of Sagittarius.

HR6802 visual magnitude is 6.51. Because of its reltive faintness, HR6802 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 HR6802:

Color of HR6802 ⬤

Magnitude of HR6802 6.51

Class Sub-giant

VISIBILITY RIGHT NOW

HR6802 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -7.3°
Azimuth: 231.7°
Direction: South-West

Celestial coordinates and finder chart of HR6802

HR6802 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6802 are provided in the following table:

Right Ascension J2000 18h 11m 58s

Declination J2000 -28° 54’ 05”

Galactic Longitude 2.9°

Galactic Latitude -4.98°

Constellation Sagittarius

The simplified sky map below shows the position of HR6802 in the sky:

Simplified finder chart for HR6802.

Visibility of HR6802 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 HR6802 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: 118.9° RISE 10:28

Max altitude: 9.6° TRANSIT 13:31

Azimuth: 241.1° SET 16:34

Digitized Sky Survey image of HR6802

The image below is a photograph of HR6802 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 HR6802 is 0.017 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6802. The red arrow shows the motion of HR6802 during the next 10000 years (2.83 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of HR6802 from the Sun and relative movement

HR6802 is distant 432.36 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 132.63 pc

Distance (light year) 432.36 ly

Heliocentric radial velocity -14 km/s

Proper Motion RA 0.017 arcsec/year

Proper Motion Dec -0.005 arcsec/year

Spectral properties of HR6802

HR6802 belongs to spectral class B9 and has a luminosity class of IV corresponding to a sub-giant star. HR6802 is also a SrEuCr chemically peculiar star.

Absolute magnitude 0.90

Spectral Type B9IV

Color Index (B-V) -0.01

Temperature of HR6802 10252K

The red dot in the diagram below shows where HR6802 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6802. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6802

Henry Draper Catalogue HD166469

SAO Catalogue SAO186444

Hipparcos Catalogue HIP89178

Durchmusterung Catalogue CD-2814268

General Catalogue of Variable Stars V4045 Sgr

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In Evidence

Other stars in Sagittarius