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: 4:49  
clear_day Transit: 12:56  
SunsetSet: 21:04 south
sunny DaytimeWhat's Visible Now
All Constellations » Leo » 


HR4281 is a main-sequence star in the constellation of Leo.

HR4281 visual magnitude is 6.55. Because of its reltive faintness, HR4281 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 HR4281:

HR4281 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4281

HR4281 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 HR4281 are provided in the following table:

10h 59m 41s
+11° 42’ 20”

The simplified sky map below shows the position of HR4281 in the sky:

Finder chart HR4281 star
Simplified finder chart for HR4281.

Visibility of HR4281 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 HR4281 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: 78.3°
Max altitude: 50.2°
Azimuth: 281.7°
HR4281 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4281

The image below is a photograph of HR4281 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 HR4281 is -0.228 arcsec per year in Right Ascension and 0.044 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4281 star
DSS2 image of HR4281. The red arrow shows the motion of HR4281 during the next 1000 years (-3.80 arcmin in Right Ascension and 0.73 arcmin in declination);

Distance of HR4281 from the Sun and relative movement

HR4281 is distant 145.93 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

44.76 pc
145.93 ly
20 km/s
-0.228 arcsec/year
0.044 arcsec/year

Spectral properties of HR4281

HR4281 belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4281 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4281. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4281