HR6434

HR6434 is a variable hypergiant star in the constellation of Ophiuchus.

HR6434 visual magnitude is 6.51. Because of its reltive faintness, HR6434 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 HR6434:

Color of HR6434 ⬤

Magnitude of HR6434 6.51

Class Hypergiant

VISIBILITY RIGHT NOW HR6434 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 43°.

Celestial coordinates and finder chart of HR6434

HR6434 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 HR6434 are provided in the following table:

Right Ascension J2000 17h 18m 52s

Declination J2000 +06° 05’ 07”

Galactic Longitude 27.69°

Galactic Latitude 23.34°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6434 in the sky:

Simplified finder chart for HR6434.

Visibility of HR6434 from your location

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

Today's HR6434 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 83.9° RISE 23:20

Max altitude: 44.6° TRANSIT 5:53

Azimuth: 276.1° SET 12:22

RIGHT NOW HR6434 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6434

The image below is a photograph of HR6434 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 HR6434 is 0.02 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6434. The red arrow shows the motion of HR6434 during the next 10000 years (3.33 arcmin in Right Ascension and 1.00 arcmin in declination);

Distance of HR6434 from the Sun and relative movement

HR6434 is distant 454.67 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

Distance (parsec) 139.47 pc

Distance (light year) 454.67 ly

Heliocentric radial velocity -25 km/s

Proper Motion RA 0.02 arcsec/year

Proper Motion Dec 0.006 arcsec/year

Spectral properties of HR6434

HR6434 belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude 0.79

Spectral Type F0IV

Color Index (B-V) 0.39

Temperature of HR6434 6934K

The red dot in the diagram below shows where HR6434 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6434. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6434

Henry Draper Catalogue HD156697

SAO Catalogue SAO122270

Hipparcos Catalogue HIP84704

Durchmusterung Catalogue BD+06 3386

General Catalogue of Variable Stars V2112 Oph

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In Evidence

Other stars in Ophiuchus