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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:28 
Transit: 12:14 
Sunset: 17:00
wb_twilight   (Astronomical Twilight)  
What's Visible Now • Tonight Timeline
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All Constellations » Hydra » 

HR4810

Below the horizon.  Rise: 0:42 | Tran: 3:30 | Set: 6:17
Alt: -47.55°   Az: 80.57°   Direction: East

HR4810 is a variable giant star of spectral class K2 in the constellation of Hydra.

HR4810 visual magnitude is 5.89. Because of its faintness, HR4810 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 HR4810 star
DSS2 image of HR4810. The red arrow shows the motion of HR4810 during the next 10000 years (-5.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Celestial Coordinates

Apparent

12h 40m 24s
-30° 33’ 35”
15h 22m 35s
04h 02m 59s

J2000

12h 39m 03s
-30° 25’ 19”

Galactic Coordinates

299.77°
32.37°

Finder Chart

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  Loading map...
Finder chart for HR4810.

Magnitude, Color, Spectral Class

5.89
Giant

-0.23
K2III
4289K

The red dot in the diagram below shows where HR4810 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4810. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4810 is distant 546.98 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

167.79
546.98
-13 km/s
-0.034 arcsec/y
-0.006"/y

Alternative Designations

SAO203666
SAO203666

Visibility from Your Location

Today's HR4810 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 120.6°
Max altitude: 8.0°
Azimuth: 239.4°