HR6422

HR6422 is a variable and double main-sequence star in the constellation of Scorpius.

HR6422 visual magnitude is 6.36. Because of its reltive faintness, HR6422 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 HR6422:

Color of HR6422 ⬤

Magnitude of HR6422 6.36

Class Main-sequence

VISIBILITY RIGHT NOW HR6422 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 5°.

Celestial coordinates and finder chart of HR6422

HR6422 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 HR6422 are provided in the following table:

Right Ascension J2000 17h 18m 20s

Declination J2000 -32° 33’ 11”

Galactic Longitude 353.77°

Galactic Latitude 2.93°

Constellation Scorpius

The simplified sky map below shows the position of HR6422 in the sky:

Simplified finder chart for HR6422.

Visibility of HR6422 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 HR6422 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: 122.6° RISE 23:11

Max altitude: 6.0° TRANSIT 1:41

Azimuth: 237.4° SET 4:07

RIGHT NOW HR6422 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6422

The image below is a photograph of HR6422 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 HR6422 is -0.013 arcsec per year in Right Ascension and -0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6422. The red arrow shows the motion of HR6422 during the next 10000 years (-2.17 arcmin in Right Ascension and -3.17 arcmin in declination);

Distance of HR6422 from the Sun and relative movement

HR6422 is distant 1,258.69 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 386.10 pc

Distance (light year) 1,258.69 ly

Heliocentric radial velocity -14 km/s

Proper Motion RA -0.013 arcsec/year

Proper Motion Dec -0.019 arcsec/year

Spectral properties of HR6422

HR6422 belongs to spectral class B5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -1.57

Spectral Type B5V

Color Index (B-V) 0.15

Temperature of HR6422 8571K

The red dot in the diagram below shows where HR6422 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6422. Attribution: Richard Powell / CC BY-SA

HR6422 star system properties

HR6422 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR6422 double sysyem:

Main star magnitude 6.36

Secondary star magnitude 11.96

Magnitude difference 5.6

Separation 19.5 arcsec

Alternative designations of HR6422

Henry Draper Catalogue HD156325

SAO Catalogue SAO208657

Hipparcos Catalogue HIP84650

Durchmusterung Catalogue CD-3212573

General Catalogue of Variable Stars Var?

In Evidence

Other stars in Scorpius