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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:52 
Transit: 12:57 
Sunset: 21:03
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All Constellations » Hydra » 

HR4857

Below the horizon.  Rise: 17:43 | Tran: 21:18 | Set: 0:54
Alt: -13.64°   Az: 113.15°   Direction: East-South-East

HR4857 is a giant star of spectral class B8 in the constellation of Hydra.

HR4857 visual magnitude is 6.44. Because of its faintness, HR4857 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 HR4857 star
DSS2 image of HR4857. The red arrow shows the motion of HR4857 during the next 10000 years (-6.83 arcmin in Right Ascension and 6.67 arcmin in declination);

Celestial Coordinates

Apparent

12h 49m 15s
-24° 59’ 23”
18h 38m 38s
07h 27m 53s

J2000

12h 47m 53s
-24° 51’ 06”

Galactic Coordinates

301.91°
38.01°

Finder Chart

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Finder chart for HR4857.

Magnitude, Color, Spectral Class

6.44
Giant

-0.65
B8III
10941K

The red dot in the diagram below shows where HR4857 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4857. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4857 is distant 853.40 light years from the Sun and it is moving far from the Sun at the speed of 49 kilometers per second.

261.78
853.40
49 km/s
-0.041 arcsec/y
0.04"/y

Alternative Designations

SAO181105
SAO181105

Visibility from Your Location

Today's HR4857 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 115.0°
Max altitude: 13.5°
Azimuth: 245.0°