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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Coma Berenices » 


Altitude: 19.9°   Azimuth: 291.9°   Direction: West-North-West

HR4948 is a multiple sub-giant star in the constellation of Coma Berenices.

HR4948 visual magnitude is 6.54. Because of its reltive faintness, HR4948 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR4948:


HR4948 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 19.9°
Azimuth: 291.9°
Direction: West-North-West

Celestial coordinates and finder chart of HR4948

HR4948 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4948 are provided in the following table:

13h 06m 10s
+29° 01’ 45”
Coma Berenices

The simplified sky map below shows the position of HR4948 in the sky:

Finder chart HR4948 star
Simplified finder chart for HR4948.

Visibility of HR4948 from your location

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

Today's HR4948 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.0°
Max altitude: 67.5°
Azimuth: 299.0°

Digitized Sky Survey image of HR4948

The image below is a photograph of HR4948 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR4948 is -0.069 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4948 star
DSS2 image of HR4948. The red arrow shows the motion of HR4948 during the next 10000 years (-11.50 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of HR4948 from the Sun and relative movement

HR4948 is distant 351.67 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

107.87 pc
351.67 ly
5 km/s
-0.069 arcsec/year
0.001 arcsec/year

Spectral properties of HR4948

HR4948 belongs to spectral class A3 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR4948 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4948. Attribution: Richard Powell / CC BY-SA

HR4948 star system properties

HR4948 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4948 double sysyem:

6.3 arcsec

Alternative designations of HR4948