HR6659

HR6659 is a hypergiant star in the constellation of Ophiuchus.

HR6659 visual magnitude is 6.35. Because of its reltive faintness, HR6659 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 HR6659:

Color of HR6659 ⬤

Magnitude of HR6659 6.35

Class Hypergiant

VISIBILITY RIGHT NOW HR6659 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6659

HR6659 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 HR6659 are provided in the following table:

Right Ascension J2000 17h 51m 59s

Declination J2000 -01° 14’ 12”

Galactic Longitude 24.91°

Galactic Latitude 12.61°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6659 in the sky:

Simplified finder chart for HR6659.

Visibility of HR6659 from your location

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

Today's HR6659 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 91.2° RISE 0:10

Max altitude: 37.3° TRANSIT 6:01

Azimuth: 268.8° SET 11:53

RIGHT NOW HR6659 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6659

The image below is a photograph of HR6659 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 HR6659 is -0.002 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6659. The red arrow shows the motion of HR6659 during the next 100000 years (-3.33 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of HR6659 from the Sun and relative movement

HR6659 is distant 444.75 light years from the Sun and it is moving towards the Sun at the speed of 44 kilometers per second.

Distance (parsec) 136.43 pc

Distance (light year) 444.75 ly

Heliocentric radial velocity -44 km/s

Proper Motion RA -0.002 arcsec/year

Proper Motion Dec 0.003 arcsec/year

Spectral properties of HR6659

HR6659 belongs to spectral class K0

Absolute magnitude 0.68

Spectral Type K0

Color Index (B-V) 1.12

Temperature of HR6659 4472K

The red dot in the diagram below shows where HR6659 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6659. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6659

Henry Draper Catalogue HD162596

SAO Catalogue SAO141913

Hipparcos Catalogue HIP87428

Durchmusterung Catalogue BD-01 3412

FK5 Catalogue 3418

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In Evidence

Other stars in Ophiuchus