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public  Haibei, China Haibei, China  ⓘ
TimezoneAsia/Shanghai
Sunrise: 3:41 
Transit: 11:36 
Sunset: 19:32
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All Constellations » Leo » 

42 Leonis

Above the horizon.  Rise: 8:08 | Tran: 15:13 | Set: 22:18
Alt: 45.65°   Az: 234.66°   Direction: South-West

42 Leonis is a variable main-sequence star of spectral class A1 in the constellation of Leo.

42 Leonis visual magnitude is 6.12. Because of its faintness, 42 Leonis 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.

Image of 42 Leonis star
DSS2 image of 42 Leonis. The red arrow shows the motion of 42 Leonis during the next 10000 years (-5.83 arcmin in Right Ascension and -2.50 arcmin in declination);

Celestial Coordinates

Apparent

10h 23m 12s
+14° 50’ 46”
02h 24m 36s
12h 47m 48s

J2000

10h 21m 50s
+14° 58’ 32”

Galactic Coordinates

224.49°
53.21°

Finder Chart

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Finder chart for 42 Leonis.

Magnitude, Color, Spectral Class

6.12
Main-sequence

0.30
A1V
9882K

The red dot in the diagram below shows where 42 Leonis is situated in the Hertzsprung–Russell diagram.

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

Distance, Radial Speed, Proper Motion

42 Leonis is distant 475.91 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

145.99
475.91
9 km/s
-0.035 arcsec/y
-0.015"/y

Alternative Designations

SAO99080
SAO99080

Visibility from Your Location

Today's 42 Leonis rise, transit and set times from Haibei, China are the following (all times relative to the local timezone Asia/Shanghai):

Azimuth: 75.2°
Max altitude: 57.2°
Azimuth: 284.8°