36 Aurigae

{{Starbox image

| image = 250px

| caption = The visual band light curve of 36 Aurigae, adapted from Adelman (2005)

}}

{{Starbox observe

| epoch = J2000

| constell = Auriga

| ra = {{RA|06|00|58.56230}}

| dec = {{DEC|+47|54|06.9180}}

| appmag_v = 5.71

}}

{{Starbox character

| type =

| class = {{nowrap|A1 Vp Si}} or {{nowrap|B9.5p Si,Fe}}

| b-v = {{Val|−0.007|0.004}}

| u-b =

| variable = α² CVn

}}

{{Starbox astrometry

| radial_v = {{Val|+15.8|2.1}}

| prop_mo_ra = +4.186

| prop_mo_dec = −20.368

| parallax = 3.5882

| p_error = 0.1266

| parallax_footnote =

| absmag_v = −1.97

}}

{{Starbox detail

| source =

| mass = {{Val|4.42|0.43}}

| radius =

| luminosity = {{Val|724|348|234}}

| temperature = {{Val|10046|522|496|fmt=commas}}

| metal_fe =

| gravity =

| rotational = 14.370 d

| rotational_velocity = 20

| age_myr =

}}

{{Starbox catalog

| names = {{odlist | F=36 Aur | V=V444 Aurigae | BD=+47°1227 | HD=40394 | HIP=28499 | HR=2101 | SAO=40778|2MASS=J06005856+4754069}}

}}

{{Starbox reference

| Simbad = 36+Aur

}}

36 Aurigae is a single variable star located about 910 light years away from the Sun in the constellation Auriga. It has the variable star designation V444 Aurigae, while 36 Aurigae is the Flamsteed designation. This object is visible to the naked eye as a dim, white-hued star with a baseline apparent visual magnitude of 5.71. It is moving further from the Earth with a heliocentric radial velocity of +16 km/s.

36 Aurigae was discovered to be a variable star when the Hipparcos data was analyzed. Because of that, it was given its variable star designation in 1999.

This is a magnetic chemically peculiar star that has been given stellar classifications of {{nowrap|A1 Vp Si}} and {{nowrap|B9.5p Si,Fe}}, indicating it is a late B- or early A-type star showing peculiarities of silicon and iron in the spectrum. It is an Alpha² Canum Venaticorum variable that ranges in visual magnitude from 5.70 down to 5.74 with a period of 14.368 days. The star has 4.4 times the mass of the Sun and is radiating 724 times the Sun's luminosity from its photosphere at an effective temperature of 10,046 K.

References

{{Reflist|refs=

{{cite journal

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| url=https://ibvs.konkoly.hu/pub/ibvs/4601/4659.pdf | access-date=2 December 2024}}

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| doi=10.1134/S1063773712050015 | s2cid=119257644 }}

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| journal=Monthly Notices of the Royal Astronomical Society

| bibcode=2017MNRAS.468.2745N | arxiv=1703.05218 | doi=10.1093/mnras/stx674 | doi-access=free | s2cid=119215348 }}

{{citation

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| journal=The Publications of the Astronomical Society of the Pacific

| volume=117 | issue=831 | pages=476–482 | date=May 2005

| doi=10.1086/429640 | bibcode=2005PASP..117..476A | doi-access=free }}

{{citation

| display-authors=1 | last1=Abt | first1=Helmut A.

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| title=Rotational Velocities of B Stars

| journal=The Astrophysical Journal | postscript=.

| volume=573 | issue=1 | pages=359–365 | date=July 2002

| doi=10.1086/340590 | bibcode=2002ApJ...573..359A | doi-access=free }}

{{citation

| display-authors=1 | last1=Samus | first1=N. N.

| last2=Kazarovets | first2=E. V. | last3=Durlevich | first3=O. V.

| last4=Kireeva | first4=N. N. | last5=Pastukhova | first5=E. N.

| title=General Catalogue of Variable Stars

| version=5.1 | journal=Astronomy Reports

| year=2017 | volume=61 | issue=1 | pages=80–88

| bibcode=2017ARep...61...80S | postscript=. | doi=10.1134/s1063772917010085 | s2cid=125853869 }}

{{citation

| last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A.

| title=A catalogue of multiplicity among bright stellar systems

| journal=Monthly Notices of the Royal Astronomical Society

| volume=389 | issue=2 | pages=869–879 | date=September 2008

| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | postscript=.

| bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}

}}

External links

[http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%202101 HR 2101]
[http://aladin.u-strasbg.fr/AladinPreview?-c=06+00+58.5613%2B47+54+06.924&ident=V*+V444+Aur&submit=Aladin+previewer Image 36 Aurigae]

Category:A-type main-sequence stars

Category:B-type main-sequence stars

Category:Alpha2 Canum Venaticorum variables