Universe Guide

Leo Minor, The Small Lion Constellation

Leo Minor Constellation Star Map

Leo Minor (Pronounciation:Lee-o Mine-nore, Abbrev:LMi, Latin:Leonis Minoris) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Leo Minor takes up 231.956 sq. degrees of the night sky which equates to 0.56% of the night sky. Leo Minor is the 64th largest in terms of size in the night sky.

The constellation name means The Small Lion . It was not one of the original constellations that had been devised by Ptolemy, instead it was created by Johannes Hevelius years later.

There are 4 stars that make up the main constellation. The hipparcos satellite scanned and detailed 607 stars. There are 22 stars that can be seen with the naked eye in the constellation on a very clear night sky.

Leo Minor is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Leo Minor is a northern hemispheric constellation which means it can't be seen easily or at all from the southern hemisphere.

There are 2 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Leo Minor.

There are no deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.

The image at the top right of this page was generated using Night Vision, a free to use and download application by Brian Simspon.

Distance to Leo Minor

You can't just go to one location and arrive at the constellation because the constellation is made up of stars at different locations and different distances. The nearest main star in the constellation is at a distance of 92.11 light years and the furthest main star is a distance of 185.00 light years. The average distance to the main stars is 131.48 light years.

Leo Minor Star Facts

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

11 Leonis Minoris, Leo Minor's Nearest Star

The nearest star to Earth is 11 Leonis Minoris which is roughly about 37.08 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HD 87883 which is about 59.38 Light Years.

HIP 47579, Leo Minor's Furthest Star

The furthest star that is located in the constellation is HIP 47579 and it is 326163.3 light years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

Praecipua, Brightest Star in Leo Minor

The brightest star in Leo Minor is Praecipua and is located about 112.13 light years from the Sun. The star has a apparent magnitude of 3.79 but an absolute magnitude of 1.47 when the star is viewed from a distance of 10 Parsecs or 32.6 Light Years. There is no star in the constellation with an Alpha Bayer Designation, there is only Beta Leonis Minoris and that is the second brightest star in Leo Minor.

33 Leonis Minoris, Leo Minor's Dimmest Visible Star

The dimmest star that can be seen in Leo Minor with the naked eye is 33 Leonis Minoris. The dim star has an apparent magnitude of 5.9. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan.

Leo Minor Mythology

Created by Johannes Hevelius in around 1687 and recognised by the International Astronomical Union. It is located above Leo and below Ursa Major hence its name.

Meteor Showers Radiating from Leo Minor

There are 6 Meteor Showers that occur during the year within this constellation based on information gathered from Adam Mickiewicz University (Poland). The list below are major ones and which I have a date period for.

NameActivityPeak ActivityClosest Star
Leonis MinoridsOct 19 - Oct 27 Oct 23  
December Leonis Minoris5 Dec- 4 Feb20-Dec  

List of Main Stars in Leo Minor

The following list contains the stars that make up the constellation. For a larger list of stars in the entire constellation area, please visit the For a list of named stars, that is stars that don't start HD or HIP, please visit Leo Minor Star List page.

NameBayerDistance (Lt.Yr.)Right AscensionDeclinationSpectral TypeColour
Beta Leonis MinorisBeta Leonis Minoris153.9210h 27m 53.09+36d 42` 26.9G8III-IVYellow
Praecipua94.8710h 53m 18.64+34d 12` 56.0K0III-IVOrange
10 Leonis Minoris185.0009h 34m 13.38+36d 23` 51.4G8IIIYellow
21 Leonis Minoris92.1110h 07m 25.73+35d 14` 40.9A7VWhite

Leo Minor Facts

NameLeo Minor
Is a Zodiac Sign No
Brightest StarPraecipua
Area231.956 sq. deg.
Percentage of Night Sky0.56%
Size Position64th
Hemisphere Northern
Site Exoplanet Count2
Meteor Shower Count6
Nearest Star11 Leonis Minoris
Nearest Star with Exoplanet(s)HD 87883
Brightest StarPraecipua
Dimmest Star33 Leonis Minoris
Furthest StarHIP 47579
Bright Star Count22
Hipparcos Star Count607
Main Star Count4
Messier Deep Space Object Count0
Bordering / Neighbouring / Surrounding ConstellationsUrsa Major

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

List of Deep Space Objects (Galaxies, Nebulas, Supernovas, etc) in Leo Minor

NameTypeDistanceDeclinationRight Ascension
NGC 3003Galaxy+33 25 17.3609 48 36m 050
NGC 3021Spiral Galaxy100,000,00033:33:5.3509h 50h 59m 06
NGC 3430Barred Spiral Galaxy+32 57 01.5310 52 11m 415
NGC 3486Intermediate Barred Spiral Galaxy+28 58 29.3511 00 23m 946
NGC 3512Barred Spiral Galaxy+28 02 12.39276989211 04 02m 9540329434

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