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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: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sunny DaytimeWhat's Visible Now?
All Constellations » Leo Minor » 

40 Leonis Minoris

Altitude: -0.2°   Azimuth: 44.2°   Direction: North-East

40 Leonis Minoris is a multiple main-sequence star in the constellation of Leo Minor.

40 Leonis Minoris visual magnitude is 5.51. Because of its reltive faintness, 40 Leonis Minoris should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of 40 Leonis Minoris is -0.105 arcsec per year in Right Ascension and -0.063 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 40 Leonis Minoris star
DSS2 image of 40 Leonis Minoris. The red arrow shows the motion of 40 Leonis Minoris during the next 1000 years (-1.75 arcmin in Right Ascension and -1.05 arcmin in declination);

Key facts about 40 Leonis Minoris

5.51
Main-sequence

40 Leonis Minoris is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.2°
Azimuth: 44.2°
Direction: North-East

Celestial coordinates and finder chart of 40 Leonis Minoris

40 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 40 Leonis Minoris are provided in the following table:

10h 43m 01s
+26° 19’ 32”
207.12°
61.4°
Leo Minor

The simplified sky map below shows the position of 40 Leonis Minoris in the sky:

Finder chart 40 Leonis Minoris star
Simplified finder chart for 40 Leonis Minoris.

Visibility of 40 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 40 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: 63.7°
Max altitude: 64.8°
Azimuth: 296.3°

Distance of 40 Leonis Minoris from the Sun and relative movement

40 Leonis Minoris is distant 148.18 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

45.45 pc
148.18 ly
10 km/s
-0.105 arcsec/year
-0.063 arcsec/year

Spectral properties of 40 Leonis Minoris

40 Leonis Minoris belongs to spectral class A4 and has a luminosity class of V corresponding to a main-sequence star.

2.22
A4V
8403K

The red dot in the diagram below shows where 40 Leonis Minoris is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 40 Leonis Minoris. Attribution: Richard Powell / CC BY-SA

40 Leonis Minoris star system properties

40 Leonis Minoris is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 40 Leonis Minoris double sysyem:

5.51
11.81
6.3
18.4 arcsec

Alternative designations of 40 Leonis Minoris

40 Leonis Minoris
SAO81485
SAO81485