HR7317

Altitude: -38.9° Azimuth: 62.5° Direction: East-North-East

HR7317 is a double giant star in the constellation of Sagittarius.

HR7317 visual magnitude is 6.06. Because of its reltive faintness, HR7317 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 HR7317:

Color of HR7317 ⬤

Magnitude of HR7317 6.06

Class Giant

VISIBILITY RIGHT NOW

HR7317 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -38.9°
Azimuth: 62.5°
Direction: East-North-East

Celestial coordinates and finder chart of HR7317

HR7317 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 HR7317 are provided in the following table:

Right Ascension J2000 19h 19m 00s

Declination J2000 -15° 32’ 11”

Galactic Longitude 21.95°

Galactic Latitude -13°

Constellation Sagittarius

The simplified sky map below shows the position of HR7317 in the sky:

Simplified finder chart for HR7317.

Visibility of HR7317 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 HR7317 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: 105.5° RISE 10:09

Max altitude: 23.0° TRANSIT 14:46

Azimuth: 254.5° SET 19:22

Digitized Sky Survey image of HR7317

The image below is a photograph of HR7317 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 HR7317 is -0.091 arcsec per year in Right Ascension and -0.267 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR7317. The red arrow shows the motion of HR7317 during the next 1000 years (-1.52 arcmin in Right Ascension and -4.45 arcmin in declination);

Distance of HR7317 from the Sun and relative movement

HR7317 is distant 516.64 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

Distance (parsec) 158.48 pc

Distance (light year) 516.64 ly

Heliocentric radial velocity -18 km/s

Proper Motion RA -0.091 arcsec/year

Proper Motion Dec -0.267 arcsec/year

Spectral properties of HR7317

HR7317 belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.06

Spectral Type K3III

Color Index (B-V) 1.43

Temperature of HR7317 3902K

The red dot in the diagram below shows where HR7317 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7317. Attribution: Richard Powell / CC BY-SA

HR7317 star system properties

HR7317 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR7317 double sysyem:

Main star magnitude 6.06

Secondary star magnitude 11.56

Magnitude difference 5.5

Separation 48.6 arcsec

Alternative designations of HR7317

Henry Draper Catalogue HD180928

SAO Catalogue SAO162462

Hipparcos Catalogue HIP94929

Durchmusterung Catalogue BD-15 5310

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In Evidence

Other stars in Sagittarius