HR6716

HR6716 is a variable and multiple hypergiant star in the constellation of Sagittarius.

HR6716 visual magnitude is 5.77. Because of its reltive faintness, HR6716 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 HR6716:

Color of HR6716 ⬤

Magnitude of HR6716 5.77

Class Hypergiant

VISIBILITY RIGHT NOW HR6716 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6716

HR6716 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 HR6716 are provided in the following table:

Right Ascension J2000 18h 01m 54s

Declination J2000 -22° 46’ 50”

Galactic Longitude 7.16°

Galactic Latitude -0.03°

Constellation Sagittarius

The simplified sky map below shows the position of HR6716 in the sky:

Simplified finder chart for HR6716.

Visibility of HR6716 from your location

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

Today's HR6716 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.8° RISE 2:20

Max altitude: 15.7° TRANSIT 6:11

Azimuth: 247.2° SET 10:03

RIGHT NOW HR6716 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6716

The image below is a photograph of HR6716 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 HR6716 is -0.003 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6716. The red arrow shows the motion of HR6716 during the next 100000 years (-5.00 arcmin in Right Ascension and -13.33 arcmin in declination);

Distance of HR6716 from the Sun and relative movement

HR6716 is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

Distance (parsec) 10,000,000.00 pc

Distance (light year) 32,600,000.00 ly

Heliocentric radial velocity -13 km/s

Proper Motion RA -0.003 arcsec/year

Proper Motion Dec -0.008 arcsec/year

Spectral properties of HR6716

HR6716 belongs to spectral class B0 and has a luminosity class of I corresponding to a hypergiant star.

Absolute magnitude -24.23

Spectral Type B0I

Color Index (B-V) 0

Temperature of HR6716 10125K

The red dot in the diagram below shows where HR6716 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6716. Attribution: Richard Powell / CC BY-SA

HR6716 star system properties

HR6716 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 HR6716 double sysyem:

Main star magnitude 5.77

Secondary star magnitude 12.87

Magnitude difference 7.1

Separation 8.2 arcsec

Alternative designations of HR6716

Henry Draper Catalogue HD164402

SAO Catalogue SAO186135

Hipparcos Catalogue HIP88298

Durchmusterung Catalogue BD-22 4503

General Catalogue of Variable Stars 9996

Aitken Double Star Catalogue ADS10983

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