7 Leonis

Below the horizon. Rise: 12:02 | Tran: 19:14 | Set: 2:30

Alt: -22.16° Az: 339.86° Direction: North-North-West

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

7 Leonis visual magnitude is 6.36. Because of its faintness, 7 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.

DSS2 image of 7 Leonis. The red arrow shows the motion of 7 Leonis during the next 10000 years (-6.33 arcmin in Right Ascension and 0.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 37m 15s

Declination +14° 15’ 55”

Hour Angle 10h 43m 09s

Sidereal Time 20h 20m 25s

J2000

Right Ascension 09h 35m 52s

Declination +14° 22’ 46”

Galactic Coordinates

Galactic Longitude 218.36°

Galactic Latitude 42.85°

Finder Chart

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Finder chart for 7 Leonis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.36

Class Main-sequence

Absolute magnitude 0.39

Spectral Type A1V

Color Index (B-V) 0.01

Temperature 10002K

The red dot in the diagram below shows where 7 Leonis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 7 Leonis. Attribution: Richard Powell / CC BY-SA

Star System Properties

7 Leonis is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 7 Leonis double sysyem:

Main star magnitude 6.36

Secondary star magnitude 9.56

Magnitude difference 3.2

Separation 41.2 arcsec

Distance, Radial Speed, Proper Motion

7 Leonis is distant 510.17 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

Distance (parsec) 156.49

Distance (light year) 510.17

Radial Speed 20 km/s

Proper Motion RA -0.038 arcsec/y

Alternative Designations

Flamsteed designation 7 Leonis

Henry Draper Catalogue HD83023

SAO Catalogue SAO98662

Hipparcos Catalogue HIP47096

Durchmusterung Catalogue BD+15 2077

Aitken Double Star Catalogue ADS7448

Visibility from Your Location

Today's 7 Leonis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 75.7° RISE 12:02

Max altitude: 52.8° TRANSIT 19:14

Azimuth: 284.3° SET 2:30

Set Location

Other stars in Leo