HR7072

Altitude: -21.3° Azimuth: 266.6° Direction: West

HR7072 is a double giant star in the constellation of Sagittarius.

HR7072 visual magnitude is 6.47. Because of its reltive faintness, HR7072 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 HR7072:

Color of HR7072 ⬤

Magnitude of HR7072 6.47

Class Giant

VISIBILITY RIGHT NOW

HR7072 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -21.3°
Azimuth: 266.6°
Direction: West

Celestial coordinates and finder chart of HR7072

HR7072 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 HR7072 are provided in the following table:

Right Ascension J2000 18h 48m 45s

Declination J2000 -18° 36’ 05”

Galactic Longitude 15.98°

Galactic Latitude -7.79°

Constellation Sagittarius

The simplified sky map below shows the position of HR7072 in the sky:

Simplified finder chart for HR7072.

Visibility of HR7072 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 HR7072 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: 108.6° RISE 9:53

Max altitude: 19.9° TRANSIT 14:11

Azimuth: 251.4° SET 18:30

Digitized Sky Survey image of HR7072

The image below is a photograph of HR7072 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 HR7072 is -0.007 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR7072. The red arrow shows the motion of HR7072 during the next 100000 years (-11.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of HR7072 from the Sun and relative movement

HR7072 is distant 795.12 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.

Distance (parsec) 243.90 pc

Distance (light year) 795.12 ly

Heliocentric radial velocity -31 km/s

Proper Motion RA -0.007 arcsec/year

Proper Motion Dec -0.004 arcsec/year

Spectral properties of HR7072

HR7072 belongs to spectral class G5 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.47

Spectral Type G5III

Color Index (B-V)

Temperature of HR7072 10125K

The red dot in the diagram below shows where HR7072 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7072. Attribution: Richard Powell / CC BY-SA

HR7072 star system properties

HR7072 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR7072 double sysyem:

Main star magnitude 6.47

Secondary star magnitude 7.17

Magnitude difference 0.7

Separation 0.4 arcsec

Alternative designations of HR7072

Henry Draper Catalogue HD173928

SAO Catalogue SAO161848

Hipparcos Catalogue HIP92301

Durchmusterung Catalogue BD-18 5079

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In Evidence

Other stars in Sagittarius