40 Leonis Minoris

Above the horizon. Rise: 11:51 | Tran: 20:21 | Set: 4:54

Alt: 15.96° Az: 292.20° Direction: West-North-West

40 Leonis Minoris is a multiple main-sequence star of spectral class A4 in the constellation of Leo Minor.

40 Leonis Minoris visual magnitude is 5.51. Because of its faintness, 40 Leonis Minoris is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

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);

Celestial Coordinates

Apparent

Right Ascension 10h 44m 25s

Declination +26° 11’ 31”

Hour Angle 06h 28m 56s

Sidereal Time 17h 13m 22s

J2000

Right Ascension 10h 43m 01s

Declination +26° 19’ 32”

Galactic Coordinates

Galactic Longitude 207.12°

Galactic Latitude 61.4°

Finder Chart

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Finder chart for 40 Leonis Minoris.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.51

Class Main-sequence

Absolute magnitude 2.22

Spectral Type A4V

Color Index (B-V) 0.17

Temperature 8403K

The red dot in the diagram below shows where 40 Leonis Minoris is situated in the Hertzsprung–Russell diagram.

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

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:

Main star magnitude 5.51

Secondary star magnitude 11.81

Magnitude difference 6.3

Separation 18.4 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 45.45

Distance (light year) 148.18

Radial Speed 10 km/s

Proper Motion RA -0.105 arcsec/y

Proper Motion Dec -0.063"/y

Alternative Designations

Flamsteed designation 40 Leonis Minoris

Henry Draper Catalogue HD92769

SAO Catalogue SAO81485

Hipparcos Catalogue HIP52422

Durchmusterung Catalogue BD+27 1927

Aitken Double Star Catalogue ADS7899

Visibility from Your Location

Today's 40 Leonis Minoris rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 63.8° RISE 11:51

Max altitude: 64.7° TRANSIT 20:21

Azimuth: 296.2° SET 4:54

Set Location

Other stars in Leo Minor