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: 6:46  
clear_day Transit: 12:51  
SunsetSet: 18:55 south
sunny DaytimeWhat's Visible Now
All Constellations » Leo » 


Altitude: 60.3°   Azimuth: 186.6°   Direction: South

HR3952 is a sub-giant star in the constellation of Leo.

HR3952 visual magnitude is 5.66. Because of its reltive faintness, HR3952 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 HR3952:


HR3952 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 60.3°
Azimuth: 186.6°
Direction: South

Celestial coordinates and finder chart of HR3952

HR3952 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3952 are provided in the following table:

10h 02m 48s
+21° 56’ 57”

The simplified sky map below shows the position of HR3952 in the sky:

Finder chart HR3952 star
Simplified finder chart for HR3952.

Visibility of HR3952 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 HR3952 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: 68.1°
Max altitude: 60.5°
Azimuth: 291.9°

Digitized Sky Survey image of HR3952

The image below is a photograph of HR3952 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 HR3952 is -0.017 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3952 star
DSS2 image of HR3952. The red arrow shows the motion of HR3952 during the next 10000 years (-2.83 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR3952 from the Sun and relative movement

HR3952 is distant 1,582.52 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

485.44 pc
1,582.52 ly
3 km/s
-0.017 arcsec/year
-0.006 arcsec/year

Spectral properties of HR3952

HR3952 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR3952 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3952. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3952