Universe Guide

11 Leonis Minoris - HD82885 - HIP47080

11 Leonis Minoris is a white to yellow subgiant star that can be located in the constellation of LeoMinor. HIP47080 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD82885. 11 Leonis Minoris has alternative name(s), 11 Leonis Minoris , 11 LMi.

Location of 11 Leonis Minoris

The location of the star in the galaxy is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the star is compared to the celestial equator and is expressed in degrees. For 11 Leonis Minoris, the location is 09h 35m 40.03 and +35d48`38.8 .

Proper Motion of 11 Leonis Minoris

All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun. In the case of a star, its the galactic centre. The constellations that we see today will be different than they were 50,000 years ago or 50,000 years from now. Proper Motion details the movements of these stars and are measured in milliarcseconds. The star is moving -259.81 ± 000.17 towards the north and -728.71 ± 000.32 east if we saw them in the horizon.

Physical Properties (Colour, Temperature, Radius) of 11 Leonis Minoris

11 Leonis Minoris has a spectral type of G8IV-V. This means the star is a white to yellow coloured subgiant star. The star has a B-V Colour Index of 0.77 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 5,364 Kelvin.

11 Leonis Minoris has been calculated as 1.22 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 847,772.46.km.

11 Leonis Minoris Apparent and Absolute Magnitudes

11 Leonis Minoris has an apparent magnitude of 5.40 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of 5.16 If you used the 2007 Parallax value, you would get an absolute magnitude of 5.12. Magnitude, whether it be apparent/visual or absolute magnitude is measured by a number, the smaller the number, the brighter the Star is. Our own Sun is the brightest star and therefore has the lowest of all magnitudes, -26.74. A faint star will have a high number.

Distance to 11 Leonis Minoris

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 89.45 which gave the calculated distance to 11 Leonis Minoris as 36.46 light years away from Earth or 11.18 parsecs. In 2007, Hipparcos data was revised with a new parallax of 87.96 which put 11 Leonis Minoris at a distance of 37.08 light years or 11.37 parsecs.

It would take a spaceship travelling at the speed of light, 36.46 years using the 1997 distance to get there. We don't have the technology or spaceship that can carry people over that distance yet.

Source of Information

The source of the information if it has a Hip I.D. is from Simbad, the Hipparcos data library based at the University at Strasbourg, France. Hipparcos was a E.S.A. satellite operation launched in 1989 for four years. The items in red are values that I've calculated so they could well be wrong. Information regarding Stellar Age, Metallicity or Mass is from the E.U. Exoplanets. The information was obtained as of 12th Feb 2017.

11 Leonis Minoris Facts

Traditional Name11 Leonis Minoris
Short Name11 LMi
Alternative Name(s)11 Leonis Minoris
Hipparcos Library I.D.47080
Bonner DurchmusterungBD+36 1979
Henry Draper Designation82885
Celestial TypeStar
Absolute Magnitude5.16 / 5.12
Apparent Magnitude5.40
Right Ascension (R.A.)09h 35m 40.03
Declination (Dec.)+35d48`38.8
1997 Distance from Earth89.45 Parallax (milliarcseconds)
 36.46 Light Years
 11.18 Parsecs
2007 Distance from Earth87.96 Parallax (milliarcseconds)
 37.08 Light Years
 11.37 Parsecs
Proper Motion Dec.-259.81 ± 0.17 milliarcseconds/year
Proper Motion RA.-728.71 ± 0.32 milliarcseconds/year
B-V Index0.77
Spectral TypeG8IV-V
Colour(G) White to Yellow
Star Typesubgiant star
Radius (x the Sun)1.22
Calculated Effective Temperature5,364 Kelvin

Location of 11 Leonis Minoris in Leo Minor

11 Leonis Minoris Location in Leo Minor

The map was generated using Night Vision, an awesome free application by Brian Simpson.

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