Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:45  
clear_day Transit: 12:57  
SunsetSet: 21:09 south
sunny DaytimeWhat's Visible Now
All Constellations » Canes Venatici » 


Altitude: -4.5°   Azimuth: 351.1°   Direction: North

HR4904 is a sub-giant star in the constellation of Canes Venatici.

HR4904 visual magnitude is 6.26. Because of its reltive faintness, HR4904 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 HR4904:


HR4904 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -4.5°
Azimuth: 351.1°
Direction: North

Celestial coordinates and finder chart of HR4904

HR4904 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 HR4904 are provided in the following table:

12h 54m 13s
+33° 32’ 03”
Canes Venatici

The simplified sky map below shows the position of HR4904 in the sky:

Finder chart HR4904 star
Simplified finder chart for HR4904.

Visibility of HR4904 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 HR4904 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: 56.5°
Max altitude: 72.1°
Azimuth: 303.5°
HR4904 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4904

The image below is a photograph of HR4904 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 HR4904 is -0.09 arcsec per year in Right Ascension and 0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4904 star
DSS2 image of HR4904. The red arrow shows the motion of HR4904 during the next 10000 years (-15.00 arcmin in Right Ascension and 5.33 arcmin in declination);

Distance of HR4904 from the Sun and relative movement

HR4904 is distant 242.74 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

74.46 pc
242.74 ly
5 km/s
-0.09 arcsec/year
0.032 arcsec/year

Spectral properties of HR4904

HR4904 belongs to spectral class A7 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR4904 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4904. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4904