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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
SunriseRise: 6:44  
clear_day Transit: 12:10  
SunsetSet: 17:38
sleep NighttimeWhat's Visible Now?
All Constellations » Leo Minor » 


Altitude: 79.1°   Azimuth: 173.4°   Direction: South

HR3987 is a giant star in the constellation of Leo Minor.

HR3987 visual magnitude is 6.32. Because of its reltive faintness, HR3987 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR3987 is -0.014 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3987 star
DSS2 image of HR3987. The red arrow shows the motion of HR3987 during the next 10000 years (-2.33 arcmin in Right Ascension and -0.33 arcmin in declination);

Key facts about HR3987


HR3987 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 79.1°
Azimuth: 173.4°
Direction: South

Celestial coordinates and finder chart of HR3987

HR3987 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 HR3987 are provided in the following table:

10h 10m 58s
+40° 39’ 41”
Leo Minor

The simplified sky map below shows the position of HR3987 in the sky:

Finder chart HR3987 star
Simplified finder chart for HR3987.

Visibility of HR3987 from your location

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

HR3987 is circumpolar and transits at 23:29 UTC (altitude: 79.2°)

Distance of HR3987 from the Sun and relative movement

HR3987 is distant 595.98 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

182.82 pc
595.98 ly
14 km/s
-0.014 arcsec/year
-0.002 arcsec/year

Spectral properties of HR3987

HR3987 belongs to spectral class K3


The red dot in the diagram below shows where HR3987 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3987. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3987