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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: 7:41  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Leo » 


Altitude: 50.5°   Azimuth: 183.1°   Direction: South

HR4378 is a main-sequence star in the constellation of Leo.

HR4378 visual magnitude is 6.66. Because of its reltive faintness, HR4378 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 HR4378:


HR4378 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 50.5°
Azimuth: 183.1°
Direction: South

Celestial coordinates and finder chart of HR4378

HR4378 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 HR4378 are provided in the following table:

11h 18m 20s
+11° 59’ 04”

The simplified sky map below shows the position of HR4378 in the sky:

Finder chart HR4378 star
Simplified finder chart for HR4378.

Visibility of HR4378 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 HR4378 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: 78.0°
Max altitude: 50.5°
Azimuth: 282.0°

Digitized Sky Survey image of HR4378

The image below is a photograph of HR4378 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 HR4378 is 0.004 arcsec per year in Right Ascension and -0.036 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4378 star
DSS2 image of HR4378. The red arrow shows the motion of HR4378 during the next 10000 years (0.67 arcmin in Right Ascension and -6.00 arcmin in declination);

Distance of HR4378 from the Sun and relative movement

HR4378 is distant 567.94 light years from the Sun and it is moving towards the Sun at the speed of 35 kilometers per second.

174.22 pc
567.94 ly
-35 km/s
0.004 arcsec/year
-0.036 arcsec/year

Spectral properties of HR4378

HR4378 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4378 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4378. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4378