HR4098

Above the horizon. Circumpolar today

Alt: 63.03° Az: 79.10° Direction: South

HR4098 is a double main-sequence star of spectral class F9 in the constellation of Ursa Major.

HR4098 visual magnitude is 6.44. Because of its faintness, HR4098 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 HR4098. The red arrow shows the motion of HR4098 during the next 1000 years (1.32 arcmin in Right Ascension and -14.73 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 29m 37s

Declination +48° 39’ 14”

Hour Angle 21h 10m 28s

Sidereal Time 07h 40m 05s

J2000

Right Ascension 10h 28m 03s

Declination +48° 47’ 04”

Galactic Coordinates

Galactic Longitude 165.08°

Galactic Latitude 54.91°

Finder Chart

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Finder chart for HR4098.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.44

Class Main-sequence

Absolute magnitude 4.58

Spectral Type F9V

Color Index (B-V) 0.6

Temperature 5968K

The red dot in the diagram below shows where HR4098 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4098. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4098 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 HR4098 double sysyem:

Main star magnitude 6.44

Secondary star magnitude 12.44

Magnitude difference 6

Separation 4.7 arcsec

Distance, Radial Speed, Proper Motion

HR4098 is distant 76.80 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 23.56

Distance (light year) 76.80

Radial Speed -7 km/s

Proper Motion RA 0.079 arcsec/y

Proper Motion Dec -0.884"/y

Alternative Designations

Henry Draper Catalogue HD90508

SAO Catalogue SAO43351

Hipparcos Catalogue HIP51248

Durchmusterung Catalogue BD+49 1961

Gliese Catalogue Gl 392 A

Visibility from Your Location

HR4098 is circumpolar and transits at 16:21 UTC (altitude: 87.2°)

Set Location

Other stars in Ursa Major