34 Leonis Minoris

{{Starbox begin

| name = 34 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 = 34 Leonis Minoris

| x = 372 | y = 436

}}

| caption = Location of 34 LMi on the map (circled)

}}

{{Starbox observe

| epoch = J2000.0 (ICRS)

| constell = Leo Minor

| ra = {{RA|10|33|30.91104}}

| dec = {{DEC|+34|59|19.3006}}

| appmag_v = 5.58{{±|0.01}}

}}

{{Starbox character

| type = subgiant

| class = A2 V

| b-v = +0.02

| u-b = +0.04

}}

{{Starbox astrometry

| radial_v = 7{{±|10}}

| parallax = 6.3892

| p_error = 0.0706

| parallax_footnote =

| prop_mo_ra = −28.397

| prop_mo_dec = −3.072

| pm_footnote =

| absmag_v = −1.02

}}

{{Starbox detail

| mass = 2.40{{±|0.42}}

| radius = 4.85{{±|0.25}}

| luminosity = 323{{±|54|46}}

| gravity = 3.50{{±|0.25}}

| temperature = 9,333{{±|152|149}}

| metal_fe = −0.03

| rotational_velocity = 165{{±|8}}

| age_myr = 406{{±|134|172}}

}}

{{Starbox catalog

| names = 11 H. Leonis Minoris, {{odlist|F = 34 LMi|AG = +35°1020|BD = +35°2154|GC = 14501|HD = 91365|HIP = 51685|HR = 4137|SAO = 62121}}

}}

{{Starbox reference

| Simbad = 34+LMi

}}

34 Leonis Minoris (34 LMi), also known as HD 91365 or 11 H. Leonis Minoris 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 5.58. Gaia DR3 parallax measurements imply a distance of 510 light-years, and it is currently receding with a poorly constrained heliocentric radial velocity of {{val|7|ul=km/s}}. At its current distance, 34 LMi's brightness is diminished by interstellar extinction of 0.16 magnitudes and it has an absolute magnitude of −1.02.

The object has received several stellar classifications over the years. Most sources generally agree that it is an early A-type main-sequence star with the classes ranging from A0 to A2. Anne Cowley and colleagues found that 34 LMi has broad or nebulous absorption lines in its spectrum, which could be a result of rapid rotation. However, D. R. Palmer gave a class of A0 IV, indicating that it is an evolved A-type subgiant. Richard O. Gray and Robert F. Garrison found a class of A1 III-IV, indicating that it has a luminosity class intermediate between a subgiant and giant star.

34 LMi has 2.4 times the mass of the Sun and an enlarged radius of {{solar radius|4.85|link=y}}. It radiates 323 times the luminosity of the Sun from its photosphere at an effective temperature of {{val|9333|ul=K|fmt=commas}}. At the age of 406 million years 34 LMi is 1.9% past its main sequence lifetime, meaning that it has evolved to the subgiant branch. The star has a near-solar metallicity at [Fe/H] = −0.03 (93% solar). Like many hot stars 34 LMi spins rapidly, having a projected rotational velocity of {{val|165|ul=km/s}}.

References

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{{Cite simbad|title = 34 Leonis Minoris|access-date = June 27, 2023}}

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}}

Category:A-type subgiants