HR8716

Altitude: -2.6° Azimuth: 94.8° Direction: East

HR8716 is a variable and double hypergiant star in the constellation of Aquarius.

HR8716 visual magnitude is 5.72. Because of its reltive faintness, HR8716 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 HR8716:

Color of HR8716 ⬤

Magnitude of HR8716 5.72

Class Hypergiant

VISIBILITY RIGHT NOW

HR8716 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -2.6°
Azimuth: 94.8°
Direction: East

Celestial coordinates and finder chart of HR8716

HR8716 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 HR8716 are provided in the following table:

Right Ascension J2000 22h 55m 10s

Declination J2000 -04° 59’ 16”

Galactic Longitude 66.38°

Galactic Latitude -54.55°

Constellation Aquarius

The simplified sky map below shows the position of HR8716 in the sky:

Simplified finder chart for HR8716.

Visibility of HR8716 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 HR8716 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: 95.0° RISE 12:21

Max altitude: 33.5° TRANSIT 17:54

Azimuth: 265.0° SET 23:27

Digitized Sky Survey image of HR8716

The image below is a photograph of HR8716 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 HR8716 is 0.034 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8716. The red arrow shows the motion of HR8716 during the next 10000 years (5.67 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of HR8716 from the Sun and relative movement

HR8716 is distant 292.90 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 89.85 pc

Distance (light year) 292.90 ly

Heliocentric radial velocity -9 km/s

Proper Motion RA 0.034 arcsec/year

Proper Motion Dec -0.005 arcsec/year

Spectral properties of HR8716

HR8716 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 0.95

Spectral Type K0III

Color Index (B-V) 0.88

Temperature of HR8716 5051K

The red dot in the diagram below shows where HR8716 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8716. Attribution: Richard Powell / CC BY-SA

HR8716 star system properties

HR8716 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR8716 double sysyem:

Main star magnitude 5.72

Secondary star magnitude 7.72

Magnitude difference 2

Separation 0.6 arcsec

Alternative designations of HR8716

Henry Draper Catalogue HD216718

SAO Catalogue SAO146388

Hipparcos Catalogue HIP113184

Durchmusterung Catalogue BD-05 5885

General Catalogue of Variable Stars 14360

Aitken Double Star Catalogue ADS16365

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In Evidence

Other stars in Aquarius