Lambda2 Sculptoris

{{for|other star systems with this Bayer designation|Lambda Sculptoris{{!}}λ Sculptoris}}

{{Starbox begin

| name = Lambda² Sculptoris

}}

{{Starbox observe

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Sculptor

| ra = {{RA|00|44|12.09871}}

| dec = {{DEC|−38|25|18.0704}}

| appmag_v = +5.90

}}

{{Starbox character

| type = red clump

| class = K1 III

| b-v = +1.15

| u-b =

| r-i =

| variable =

}}

{{Starbox astrometry

| radial_v = +26.5

| prop_mo_ra = +246.29

| prop_mo_dec = +120.53

| parallax = 9.63

| p_error = 0.40

| parallax_footnote =

| absmag_v = +0.82

}}

{{Starbox detail

| source =

| mass = 1.49

| radius = 14

| luminosity = 63

| temperature = {{Val|4531|25|fmt=commas}}

| gravity =

| metal_fe = {{Val|−0.04|0.05}}

| rotational_velocity =

| age_gyr = 3.58

}}

{{Starbox catalog

| names = {{odlist|B=λ² Scl | CD=−39°181 | FK5=26 | HD=4211 | HIP=3456 | HR=195 | SAO=192703 }}

}}

{{Starbox reference

| Simbad = lam02+Scl

}}

Lambda² Sculptoris is an orange-hued star in the southern constellation of Sculptor. On dark nights it is faintly visible to the naked eye, having an apparent visual magnitude of +5.90. Based upon an annual parallax shift of 9.63 mas as measured from Earth, it is located roughly 340 light-years from the Sun. It has a relatively large proper motion, advancing {{Val|0.284|0.015|u=arcsecond}} per year across the sky.

At an age of about 3.58 billion years, Lambda² Sculptoris is an evolved red-clump giant star with a stellar classification of K0 III. It is presently on the horizontal branch and is generating energy through the nuclear fusion of helium at its core. The star has an estimated 1.49 times the mass of the Sun and has expanded to about 14 times the Sun's radius. It is radiating 63 times the solar luminosity from its photosphere at an effective temperature of {{val|4531|fmt=commas|ul=K}}.

References

{{reflist|refs=

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| doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=. }}

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| bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015

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{{citation

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{{citation | display-authors=1

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| title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)

| edition=3rd | journal=Astronomy and Astrophysics

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{{citation | postscript=.

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| last4=Pietrzyński | first4=G. | last5=Gieren | first5=W.