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public LocationGreenwich, United Kingdom
Sunrise: 4:53 
Transit: 12:55 
Sunset: 20:59
wb_twilight   (Civil Twilight)   What's Visible Now?


Altitude: -33.1°   Azimuth: 176.9°   Direction: South

HR4930 is a variable giant star in the constellation of Musca.

HR4930 visual magnitude is 6.03. Because of its reltive faintness, HR4930 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4930 is -0.023 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4930 star
DSS2 image of HR4930. The red arrow shows the motion of HR4930 during the next 10000 years (-3.83 arcmin in Right Ascension and -2.33 arcmin in declination);

Key facts about HR4930


HR4930 is below the horizon from Greenwich, United Kingdom.

Altitude: -33.1°
Azimuth: 176.9°
Direction: South

Celestial coordinates and finder chart of HR4930

HR4930 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4930 are provided in the following table:

13h 03m 05s
-71° 28’ 33”

The simplified sky map below shows the position of HR4930 in the sky:

Finder chart HR4930 star
Simplified finder chart for HR4930.

Visibility of HR4930 from your location

Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR4930 is currently not visible from Greenwich, United Kingdom

Distance of HR4930 from the Sun and relative movement

HR4930 is distant 1,574.88 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

483.09 pc
1,574.88 ly
-5 km/s
-0.023 arcsec/year
-0.014 arcsec/year

Spectral properties of HR4930

HR4930 belongs to spectral class B1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4930 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4930. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4930