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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:19 
Transit: 12:14 
Sunset: 17:09
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All Constellations » Ursa Major » 

HR4550

Above the horizon.  Rise: 15:23 | Tran: 2:24 | Set: 13:21
Alt: 38.02°   Az: 74.88°   Direction: East-North-East

HR4550 is a variable and double main-sequence star of spectral class G8 in the constellation of Ursa Major.

HR4550 visual magnitude is 6.45. Because of its faintness, HR4550 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 HR4550 star
DSS2 image of HR4550. The red arrow shows the motion of HR4550 during the next 100 years (6.67 arcmin in Right Ascension and -9.69 arcmin in declination);

Celestial Coordinates

Apparent

11h 54m 16s
+37° 34’ 43”
19h 05m 19s
06h 59m 36s

J2000

11h 52m 58s
+37° 43’ 06”

Galactic Coordinates

168.42°
73.69°

Finder Chart

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Finder chart for HR4550.

Magnitude, Color, Spectral Class

6.45
Main-sequence

6.64
G8V
5436K

The red dot in the diagram below shows where HR4550 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4550. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4550 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR4550 double sysyem:

6.45
11.95
5.5
1.7 arcsec

Distance, Radial Speed, Proper Motion

HR4550 is distant 29.85 light years from the Sun and it is moving towards the Sun at the speed of 98 kilometers per second.

9.16
29.85
-98 km/s
4.003 arcsec/y
-5.813"/y

Alternative Designations

SAO62738
SAO62738
Gl 451 A

Visibility from Your Location

Today's HR4550 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 52.4°
Max altitude: 76.1°
Azimuth: 307.6°