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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
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Transit: 11:43 
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All Constellations » Ursa Major » 

HR3645

Above the horizon.  Circumpolar today
Alt: 45.35°   Az: 24.30°   Direction: North-North-East

HR3645 is a hypergiant star of spectral class F0 in the constellation of Ursa Major.

HR3645 visual magnitude is 5.96. Because of its faintness, HR3645 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.

Image of HR3645 star
DSS2 image of HR3645. The red arrow shows the motion of HR3645 during the next 10000 years (-14.17 arcmin in Right Ascension and -10.50 arcmin in declination);

Celestial Coordinates

Apparent

09h 18m 19s
+72° 50’ 28”
17h 14m 33s
02h 32m 52s

J2000

09h 15m 52s
+72° 56’ 45”

Galactic Coordinates

139.99°
36.14°

Finder Chart

Finder chart HR3645 star
Simplified finder chart for HR3645.

Magnitude, Color, Spectral Class

5.96
Hypergiant

1.21
F0III
8321K

The red dot in the diagram below shows where HR3645 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3645. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR3645 is distant 290.81 light years from the Sun

89.21
290.81
-0.085 arcsec/y
-0.063"/y

Alternative Designations

SAO6792
SAO6792

Visibility from Your Location

HR3645 is circumpolar and transits at 06:14 UTC (altitude: 68.6°)