32 Leonis Minoris

{{Starbox begin

| name = 32 Leonis Minoris

}}

{{Starbox image

| image = {{Location mark

| width = 280

| image = Leo Minor constellation map.svg

| float = center |position = right

| mark = Red circle.svg | mark_width = 8 | mark_link = 32 Leonis Minoris

| x = 404 | y = 280

}}

| caption = Location of 32 LMi on the map (circled)

}}

{{Starbox observe

| epoch = J2000.0 (ICRS)

| constell = Leo Minor

| ra = {{RA|10|30|06.44761}}

| dec = {{DEC|+38|55|30.4758}}

| appmag_v = 5.78{{±|0.01}}

}}

{{Starbox character

| type = subgiant

| class = A4 V or A4 III

| b-v = +0.07

| u-b = +0.14

}}

{{Starbox astrometry

| radial_v = 2{{±|4.3}}

| parallax = 4.4749

| p_error = 0.0527

| parallax_footnote =

| prop_mo_ra = −16.446

| prop_mo_dec = −4.506

| pm_footnote =

| absmag_v = −1.02

}}

{{Starbox detail

| mass = 2.01{{±|0.39}}

| radius = 6.58{{±|0.33}}

| luminosity = 241{{±|41|35}}

| gravity = 3.07{{±|0.37}}

| temperature = 8,511{{±|79|78}}

| metal_fe = −0.80

| rotational_velocity = 70{{±|8}}

| age_myr = 465

}}

{{Starbox catalog

| names = {{odlist|F = 32 LMi|AG = +39°1131|BD = +39°2357|GC = 14417|HD = 90840|HIP = 51420|HR = 4113|SAO = 62076}}

}}

{{Starbox reference

| Simbad = 32+LMi

}}

32 Leonis Minoris (32 LMi), also known as HD 90840, is a solitary star located in the northern constellation Leo Minor. It is faintly visible to the naked eye as a white-hued point of light with an apparent magnitude of 5.78. The object is located relatively far at a distance of 729 light-years based on Gaia DR3 parallax measurements and it is currently receding with a heliocentric radial velocity of {{val|2|ul=km/s}}, which is somewhat constrained. At its current distance, 32 LMi's brightness is diminished by 0.14 magnitudes due to interstellar extinction and it has an absolute magnitude of −1.02.

The object has been given several stellar classifications over the years, ranging from main sequence (V) to giant star (III) and A1 to A4. Two of the classifications are A4 V and A4 III. It has 2.01 times the mass of the Sun but at the age of 465 million years, 32 LMi is now on the subgiant branch{{fv|date=June 2023}} and it has expanded to 6.58 times the radius of the Sun. It radiates 241 times the luminosity of the Sun from its photosphere at an effective temperature of {{val|8511|ul=K|fmt=commas}}. 32 LMi is metal deficient with an iron abundance only 15.9% that of Sun ([Fe/H] = −0.80) and it spins modestly with a projected rotational velocity of {{val|70|ul=km/s}}.

References

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{{Cite simbad|title = 32 Leonis Minoris|access-date = June 29, 2023}}

}}

Category:A-type subgiants