HR6218

HR6218 is a variable and double sub-giant star in the constellation of Scorpius.

HR6218 visual magnitude is 6.02. Because of its reltive faintness, HR6218 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 HR6218:

Color of HR6218 ⬤

Magnitude of HR6218 6.02

Class Sub-giant

VISIBILITY RIGHT NOW HR6218 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR6218

HR6218 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 HR6218 are provided in the following table:

Right Ascension J2000 16h 45m 00s

Declination J2000 -28° 30’ 34”

Galactic Longitude 352.63°

Galactic Latitude 11.08°

Constellation Scorpius

The simplified sky map below shows the position of HR6218 in the sky:

Simplified finder chart for HR6218.

Visibility of HR6218 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 HR6218 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: 118.5° RISE 21:57

Max altitude: 10.0° TRANSIT 1:08

Azimuth: 241.5° SET 4:14

RIGHT NOW HR6218 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6218

The image below is a photograph of HR6218 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 HR6218 is -0.028 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6218. The red arrow shows the motion of HR6218 during the next 10000 years (-4.67 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of HR6218 from the Sun and relative movement

HR6218 is distant 754.63 light years from the Sun and it is moving towards the Sun at the speed of 55 kilometers per second.

Distance (parsec) 231.48 pc

Distance (light year) 754.63 ly

Heliocentric radial velocity -55 km/s

Proper Motion RA -0.028 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of HR6218

HR6218 belongs to spectral class A3 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -0.80

Spectral Type A3IV

Color Index (B-V) 0.09

Temperature of HR6218 9125K

The red dot in the diagram below shows where HR6218 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6218. Attribution: Richard Powell / CC BY-SA

HR6218 star system properties

HR6218 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR6218 double sysyem:

Main star magnitude 6.02

Secondary star magnitude 13.72

Magnitude difference 7.7

Separation 5.6 arcsec

Alternative designations of HR6218

Henry Draper Catalogue HD150894

SAO Catalogue SAO184602

Hipparcos Catalogue HIP81992

Durchmusterung Catalogue CD-2812358

General Catalogue of Variable Stars 7944

In Evidence

Other stars in Scorpius