HR7703

HR7703 is a multiple main-sequence star in the constellation of Sagittarius.

HR7703 visual magnitude is 5.32. Because of its reltive faintness, HR7703 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 HR7703:

Color of HR7703 ⬤

Magnitude of HR7703 5.32

Class Main-sequence

VISIBILITY RIGHT NOW HR7703 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR7703

HR7703 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 HR7703 are provided in the following table:

Right Ascension J2000 20h 11m 11s

Declination J2000 -36° 06’ 03”

Galactic Longitude 5.26°

Galactic Latitude -30.91°

Constellation Sagittarius

The simplified sky map below shows the position of HR7703 in the sky:

Simplified finder chart for HR7703.

Visibility of HR7703 from your location

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

Today's HR7703 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 126.1° RISE 7:07

Max altitude: 2.4° TRANSIT 8:41

Azimuth: 233.9° SET 10:15

RIGHT NOW HR7703 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7703

The image below is a photograph of HR7703 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 HR7703 is 0.458 arcsec per year in Right Ascension and -1.571 arcsec per year in Declination and the associated displacement for the next 100 years is represented with the red arrow.

DSS2 image of HR7703. The red arrow shows the motion of HR7703 during the next 100 years (0.76 arcmin in Right Ascension and -2.62 arcmin in declination);

Distance of HR7703 from the Sun and relative movement

HR7703 is distant 19.73 light years from the Sun and it is moving towards the Sun at the speed of 130 kilometers per second.

Distance (parsec) 6.05 pc

Distance (light year) 19.73 ly

Heliocentric radial velocity -130 km/s

Proper Motion RA 0.458 arcsec/year

Proper Motion Dec -1.571 arcsec/year

Spectral properties of HR7703

HR7703 belongs to spectral class K3 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 6.41

Spectral Type K3V

Color Index (B-V) 0.87

Temperature of HR7703 5078K

The red dot in the diagram below shows where HR7703 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7703. Attribution: Richard Powell / CC BY-SA

HR7703 star system properties

HR7703 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 HR7703 double sysyem:

Main star magnitude 5.32

Secondary star magnitude 9.32

Magnitude difference 4

Separation arcsec

Alternative designations of HR7703

Henry Draper Catalogue HD191408

SAO Catalogue SAO211885

Hipparcos Catalogue HIP99461

Durchmusterung Catalogue CD-3613940

Gliese Catalogue Gl 783 A

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Other stars in Sagittarius