HR6494

HR6494 is a sub-giant star in the constellation of Ophiuchus.

HR6494 visual magnitude is 6. Because of its reltive faintness, HR6494 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 HR6494:

Color of HR6494 ⬤

Magnitude of HR6494 6

Class Sub-giant

VISIBILITY RIGHT NOW HR6494 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6494

HR6494 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6494 are provided in the following table:

Right Ascension J2000 17h 27m 37s

Declination J2000 -29° 43’ 27”

Galactic Longitude 357.23°

Galactic Latitude 2.88°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6494 in the sky:

Simplified finder chart for HR6494.

Visibility of HR6494 from your location

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

Today's HR6494 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 119.7° RISE 2:41

Max altitude: 8.8° TRANSIT 5:37

Azimuth: 240.3° SET 8:33

RIGHT NOW HR6494 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6494

The image below is a photograph of HR6494 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 HR6494 is -0.008 arcsec per year in Right Ascension and -0.026 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6494. The red arrow shows the motion of HR6494 during the next 10000 years (-1.33 arcmin in Right Ascension and -4.33 arcmin in declination);

Distance of HR6494 from the Sun and relative movement

HR6494 is distant 599.26 light years from the Sun and it is moving towards the Sun at the speed of 21 kilometers per second.

Distance (parsec) 183.82 pc

Distance (light year) 599.26 ly

Heliocentric radial velocity -21 km/s

Proper Motion RA -0.008 arcsec/year

Proper Motion Dec -0.026 arcsec/year

Spectral properties of HR6494

HR6494 belongs to spectral class B9 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -0.32

Spectral Type B9IV

Color Index (B-V) 0

Temperature of HR6494 10125K

The red dot in the diagram below shows where HR6494 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6494. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6494

Henry Draper Catalogue HD157955

SAO Catalogue SAO185417

Hipparcos Catalogue HIP85442

Durchmusterung Catalogue CD-2913563

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In Evidence

Other stars in Ophiuchus