HR6902

HR6902 is a giant star in the constellation of Ophiuchus.

HR6902 visual magnitude is 5.65. Because of its reltive faintness, HR6902 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 HR6902:

Color of HR6902 ⬤

Magnitude of HR6902 5.65

Class Giant

VISIBILITY RIGHT NOW HR6902 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 7°.

Celestial coordinates and finder chart of HR6902

HR6902 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 HR6902 are provided in the following table:

Right Ascension J2000 18h 25m 38s

Declination J2000 +08° 01’ 54”

Galactic Longitude 37.21°

Galactic Latitude 9.36°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6902 in the sky:

Simplified finder chart for HR6902.

Visibility of HR6902 from your location

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

Today's HR6902 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 82.0° RISE 0:13

Max altitude: 46.6° TRANSIT 6:56

Azimuth: 278.0° SET 13:34

RIGHT NOW HR6902 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6902

The image below is a photograph of HR6902 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 HR6902 is -0.002 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6902. The red arrow shows the motion of HR6902 during the next 100000 years (-3.33 arcmin in Right Ascension and -10.00 arcmin in declination);

Distance of HR6902 from the Sun and relative movement

HR6902 is distant 806.93 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 247.52 pc

Distance (light year) 806.93 ly

Heliocentric radial velocity -8 km/s

Proper Motion RA -0.002 arcsec/year

Proper Motion Dec -0.006 arcsec/year

Spectral properties of HR6902

HR6902 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.32

Spectral Type G8III

Color Index (B-V) 0.92

Temperature of HR6902 4943K

The red dot in the diagram below shows where HR6902 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6902. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6902

Henry Draper Catalogue HD169689

SAO Catalogue SAO123462

Hipparcos Catalogue HIP90313

Durchmusterung Catalogue BD+07 3682

FK5 Catalogue 1478

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In Evidence

Other stars in Ophiuchus