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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:10 
Transit: 13:06 
Sunset: 21:02
wb_twilight   (Civil Twilight)   What's Visible Now?
All Constellations » Musca » 

HR4820

Below the horizon.  Never rises today
Alt: -36.75°   Az: 200.05°   Direction: South-South-West

HR4820 is a variable supergiant star of spectral class F7 in the constellation of Musca.

HR4820 visual magnitude is 6.33. Because of its faintness, HR4820 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 HR4820 star
DSS2 image of HR4820. The red arrow shows the motion of HR4820 during the next 100000 years (-6.67 arcmin in Right Ascension and -3.33 arcmin in declination);

Celestial Coordinates

Apparent

12h 43m 36s
-69° 32’ 30”
03h 27m 08s
16h 10m 45s

J2000

12h 42m 05s
-69° 24’ 26”

Galactic Coordinates

302.1°
-6.55°

Finder Chart

Finder chart HR4820 star
Simplified finder chart for HR4820.

Magnitude, Color, Spectral Class

6.33
Supergiant

-2.53
F7I
5342K

The red dot in the diagram below shows where HR4820 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4820. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4820 is distant 1,928.99 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

591.72
1,928.99
4 km/s
-0.004 arcsec/y
-0.002"/y

Alternative Designations

SAO251996
SAO251996

Visibility from Your Location

HR4820 is currently not visible from Greenwich, UK