HR7958

Above the horizon. Circumpolar today

Alt: 84.82° Az: 201.40° Direction: South-South-West

HR7958 is a double main-sequence star of spectral class A3 in the constellation of Cygnus.

HR7958 visual magnitude is 6.3. Because of its faintness, HR7958 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 HR7958. The red arrow shows the motion of HR7958 during the next 10000 years (-4.00 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 47m 29s

Declination +46° 37’ 32”

Hour Angle 00h 10m 59s

Sidereal Time 20h 58m 29s

J2000

Right Ascension 20h 46m 38s

Declination +46° 31’ 54”

Galactic Coordinates

Galactic Longitude 85.83°

Galactic Latitude 2.06°

Finder Chart

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Finder chart for HR7958.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.3

Class Main-sequence

Absolute magnitude 0.79

Spectral Type A3V

Color Index (B-V) 0.03

Temperature 9766K

The red dot in the diagram below shows where HR7958 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7958. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7958 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 HR7958 double sysyem:

Main star magnitude 6.3

Secondary star magnitude 8.2

Magnitude difference 1.9

Separation 0.5 arcsec

Distance, Radial Speed, Proper Motion

HR7958 is distant 413.18 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

Distance (parsec) 126.74

Distance (light year) 413.18

Radial Speed -6 km/s

Proper Motion RA -0.024 arcsec/y

Proper Motion Dec -0.013"/y

Alternative Designations

Henry Draper Catalogue HD198151

SAO Catalogue SAO50050

Hipparcos Catalogue HIP102530

Durchmusterung Catalogue BD+45 3270

Visibility from Your Location

HR7958 is circumpolar and transits at 05:26 UTC (altitude: 85.1°)

Set Location

Other stars in Cygnus