HR7146

Above the horizon. Circumpolar today

Alt: 38.82° Az: 291.00° Direction: West-North-West

HR7146 is a multiple hypergiant star of spectral class K0 in the constellation of Lyra.

HR7146 visual magnitude is 5.44. Because of its faintness, HR7146 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 HR7146. The red arrow shows the motion of HR7146 during the next 100000 years (3.33 arcmin in Right Ascension and -3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 55m 41s

Declination +41° 38’ 11”

Hour Angle 05h 06m 47s

Sidereal Time 00h 02m 28s

J2000

Right Ascension 18h 54m 52s

Declination +41° 36’ 10”

Galactic Coordinates

Galactic Longitude 71.49°

Galactic Latitude 17.03°

Finder Chart

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Finder chart for HR7146.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.44

Class Hypergiant

Absolute magnitude 0.87

Spectral Type K0III

Color Index (B-V) 1.03

Temperature 4672K

The red dot in the diagram below shows where HR7146 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7146. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7146 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 HR7146 double sysyem:

Main star magnitude 5.44

Secondary star magnitude 12.34

Magnitude difference 6.9

Separation 23.6 arcsec

Distance, Radial Speed, Proper Motion

HR7146 is distant 267.43 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 82.03

Distance (light year) 267.43

Radial Speed -9 km/s

Proper Motion RA 0.002 arcsec/y

Proper Motion Dec -0.002"/y

Alternative Designations

Henry Draper Catalogue HD175740

SAO Catalogue SAO47909

Hipparcos Catalogue HIP92831

Durchmusterung Catalogue BD+41 3177

Aitken Double Star Catalogue ADS11840

Visibility from Your Location

HR7146 is circumpolar and transits at 01:21 UTC (altitude: 80.2°)

Set Location

Other stars in Lyra