HR7156

Below the horizon. Never rises today

Alt: -1.00° Az: 178.36° Direction: South

HR7156 is a double hypergiant star of spectral class A0 in the constellation of Corona Australis.

HR7156 visual magnitude is 6.49. Because of its faintness, HR7156 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR7156. The red arrow shows the motion of HR7156 during the next 10000 years (1.50 arcmin in Right Ascension and -5.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 00m 56s

Declination -39° 29’ 53”

Hour Angle 23h 51m 29s

Sidereal Time 18h 52m 26s

J2000

Right Ascension 18h 59m 11s

Declination -39° 32’ 04”

Galactic Coordinates

Galactic Longitude 357.2°

Galactic Latitude -18.27°

Finder Chart

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Finder chart for HR7156.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.49

Class Hypergiant

Absolute magnitude 0.62

Spectral Type A0

Color Index (B-V) -0.04

Temperature 10653K

The red dot in the diagram below shows where HR7156 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7156. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7156 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 HR7156 double sysyem:

Main star magnitude 6.49

Secondary star magnitude 11.79

Magnitude difference 5.3

Separation 15.9 arcsec

Distance, Radial Speed, Proper Motion

HR7156 is distant 485.84 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 149.03

Distance (light year) 485.84

Radial Speed -15 km/s

Proper Motion RA 0.009 arcsec/y

Proper Motion Dec -0.035"/y

Alternative Designations

Henry Draper Catalogue HD175855

SAO Catalogue SAO210786

Hipparcos Catalogue HIP93209

Durchmusterung Catalogue CD-3913032

Visibility from Your Location

HR7156 is currently not visible from Greenwich, UK

Set Location

Other stars in Corona Australis