HR6747

Altitude: -14.3° Azimuth: 292.1° Direction: West-North-West

HR6747 is a variable hypergiant star in the constellation of Ophiuchus.

HR6747 visual magnitude is 6.14. Because of its reltive faintness, HR6747 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 HR6747:

Color of HR6747 ⬤

Magnitude of HR6747 6.14

Class Hypergiant

VISIBILITY RIGHT NOW

HR6747 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -14.3°
Azimuth: 292.1°
Direction: West-North-West

Celestial coordinates and finder chart of HR6747

HR6747 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 HR6747 are provided in the following table:

Right Ascension J2000 18h 04m 37s

Declination J2000 +01° 55’ 09”

Galactic Longitude 29.27°

Galactic Latitude 11.29°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6747 in the sky:

Simplified finder chart for HR6747.

Visibility of HR6747 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 HR6747 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: 88.1° RISE 6:41

Max altitude: 40.4° TRANSIT 12:48

Azimuth: 271.9° SET 18:56

Digitized Sky Survey image of HR6747

The image below is a photograph of HR6747 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 HR6747 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 HR6747. The red arrow shows the motion of HR6747 during the next 100000 years (-3.33 arcmin in Right Ascension and -5.00 arcmin in declination);

Distance of HR6747 from the Sun and relative movement

HR6747 is distant 32,600,000.00 light years from the Sun and it is moving far from the Sun at the speed of 17 kilometers per second.

Distance (parsec) 10,000,000.00 pc

Distance (light year) 32,600,000.00 ly

Heliocentric radial velocity 17 km/s

Proper Motion RA -0.002 arcsec/year

Proper Motion Dec -0.003 arcsec/year

Spectral properties of HR6747

HR6747 belongs to spectral class B0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude -23.86

Spectral Type B0III

Color Index (B-V) 0

Temperature of HR6747 10125K

The red dot in the diagram below shows where HR6747 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6747. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6747

Henry Draper Catalogue HD165174

SAO Catalogue SAO123090

Hipparcos Catalogue HIP88522

Durchmusterung Catalogue BD+01 3578

General Catalogue of Variable Stars V986 Oph

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In Evidence

Other stars in Ophiuchus