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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: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sleep NighttimeWhat's Visible Now?
All Constellations » Leo Minor » 

42 Leonis Minoris

Altitude: 64.0°   Azimuth: 225.0°   Direction: South-West

42 Leonis Minoris is a double main-sequence star in the constellation of Leo Minor.

42 Leonis Minoris visual magnitude is 5.24. Because of its reltive faintness, 42 Leonis Minoris 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 42 Leonis Minoris is -0.023 arcsec per year in Right Ascension and -0.037 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 42 Leonis Minoris star
DSS2 image of 42 Leonis Minoris. The red arrow shows the motion of 42 Leonis Minoris during the next 10000 years (-3.83 arcmin in Right Ascension and -6.17 arcmin in declination);

Key facts about 42 Leonis Minoris


42 Leonis Minoris is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 64.0°
Azimuth: 225.0°
Direction: South-West

Celestial coordinates and finder chart of 42 Leonis Minoris

42 Leonis Minoris 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 42 Leonis Minoris are provided in the following table:

10h 45m 51s
+30° 40’ 55”
Leo Minor

The simplified sky map below shows the position of 42 Leonis Minoris in the sky:

Finder chart 42 Leonis Minoris star
Simplified finder chart for 42 Leonis Minoris.

Visibility of 42 Leonis Minoris 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 42 Leonis Minoris 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: 59.3°
Max altitude: 69.2°
Azimuth: 300.7°

Distance of 42 Leonis Minoris from the Sun and relative movement

42 Leonis Minoris is distant 377.31 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

115.74 pc
377.31 ly
12 km/s
-0.023 arcsec/year
-0.037 arcsec/year

Spectral properties of 42 Leonis Minoris

42 Leonis Minoris belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 42 Leonis Minoris is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 42 Leonis Minoris. Attribution: Richard Powell / CC BY-SA

42 Leonis Minoris star system properties

42 Leonis Minoris is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 42 Leonis Minoris double sysyem:

198.1 arcsec

Alternative designations of 42 Leonis Minoris

42 Leonis Minoris