HR6390

Altitude: 1.5° Azimuth: 79.2° Direction: East

HR6390 is a hypergiant star in the constellation of Ophiuchus.

HR6390 visual magnitude is 6.33. Because of its reltive faintness, HR6390 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 HR6390:

Color of HR6390 ⬤

Magnitude of HR6390 6.33

Class Hypergiant

VISIBILITY RIGHT NOW

HR6390 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 1.5°
Azimuth: 79.2°
Direction: East

Celestial coordinates and finder chart of HR6390

HR6390 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 HR6390 are provided in the following table:

Right Ascension J2000 17h 11m 45s

Declination J2000 +07° 53’ 40”

Galactic Longitude 28.6°

Galactic Latitude 25.73°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6390 in the sky:

Simplified finder chart for HR6390.

Visibility of HR6390 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 HR6390 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: 82.1° RISE 5:17

Max altitude: 46.4° TRANSIT 11:55

Azimuth: 277.9° SET 18:33

Digitized Sky Survey image of HR6390

The image below is a photograph of HR6390 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 HR6390 is 0.035 arcsec per year in Right Ascension and 0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6390. The red arrow shows the motion of HR6390 during the next 10000 years (5.83 arcmin in Right Ascension and 2.33 arcmin in declination);

Distance of HR6390 from the Sun and relative movement

HR6390 is distant 401.97 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

Distance (parsec) 123.30 pc

Distance (light year) 401.97 ly

Heliocentric radial velocity -6 km/s

Proper Motion RA 0.035 arcsec/year

Proper Motion Dec 0.014 arcsec/year

Spectral properties of HR6390

HR6390 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 0.88

Spectral Type K0III

Color Index (B-V) 1.04

Temperature of HR6390 4649K

The red dot in the diagram below shows where HR6390 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6390. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6390

Henry Draper Catalogue HD155500

SAO Catalogue SAO122164

Hipparcos Catalogue HIP84113

Durchmusterung Catalogue BD+08 3367

FK5 Catalogue 1451

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In Evidence

Other stars in Ophiuchus