HR4103

Above the horizon. Rise: 4:51 | Tran: 15:54 | Set: 3:01

Alt: 78.06° Az: 79.63° Direction: East

HR4103 is a hypergiant star of spectral class K0 in the constellation of Ursa Major.

HR4103 visual magnitude is 6.35. Because of its faintness, HR4103 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 HR4103. The red arrow shows the motion of HR4103 during the next 10000 years (-3.50 arcmin in Right Ascension and -3.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 30m 08s

Declination +45° 04’ 52”

Hour Angle 22h 53m 00s

Sidereal Time 09h 23m 08s

J2000

Right Ascension 10h 28m 36s

Declination +45° 12’ 43”

Galactic Coordinates

Galactic Longitude 170.89°

Galactic Latitude 56.38°

Finder Chart

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Finder chart for HR4103.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.35

Class Hypergiant

Absolute magnitude -0.50

Spectral Type K0

Color Index (B-V) 1.32

Temperature 4086K

The red dot in the diagram below shows where HR4103 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4103. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4103 is distant 763.47 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 234.19

Distance (light year) 763.47

Radial Speed -4 km/s

Proper Motion RA -0.021 arcsec/y

Proper Motion Dec -0.019"/y

Alternative Designations

Henry Draper Catalogue HD90602

SAO Catalogue SAO43356

Hipparcos Catalogue HIP51290

Durchmusterung Catalogue BD+45 1832

FK5 Catalogue 2838

Visibility from Your Location

Today's HR4103 rise, transit and set times from Zmeyka, Russia are the following (all times relative to the local timezone Europe/Moscow):

Azimuth: 44.9° RISE 4:51

Max altitude: 89.1° TRANSIT 15:54

Azimuth: 315.1° SET 3:01

Name:	Zmeyka, Russia
Latitude:	44° 8' 34.1" N
Longitude:	43° 7' 14.9" E
Timezone:	Europe/Moscow

Set Location

Other stars in Ursa Major