33 Arietis

{{Short description|Binary star system in the constellation Aries}}

{{Starbox begin

| name = 33 Arietis

}}

{{Starbox observe

| epoch = J2000

| ra = {{RA|02|40|41.07563}}

| dec = {{DEC|+27|03|39.4040}}

| appmag_v = +5.33

| constell = Aries

}}

{{Starbox character

| class = A3 V

| r-i =

| v-r =

| b-v = +0.09

| u-b = +0.13

| variable =

}}

{{Starbox astrometry

| radial_v = +21.0

| prop_mo_ra = +64.83

| prop_mo_dec = -26.05

| parallax = 14.09

| p_error = 0.32

| parallax_footnote =

| absmag_v =

}}

{{Starbox detail

| mass =

| radius =

| luminosity =

| temperature =

| metal_fe =

| rotational_velocity = 107

| age_gyr =

}}

{{Starbox catalog

| names = BD+26° 443, HD 16628, HIP 12489, HR 782, SAO 75510.

}}

{{Starbox reference

| Simbad = 33+Ari

}}

33 Arietis (abbreviated 33 Ari) is a binary star in the northern constellation of Aries. 33 Arietis is the Flamsteed designation. The combined apparent magnitude of 5.33 is bright enough to be seen with the naked eye. Based upon an annual parallax shift of 14.09 mas, the distance to this system is approximately {{Convert|231|ly|pc|abbr=off|lk=on}}.

The primary component is an A-type main sequence star with a magnitude of 5.40 and a stellar classification of A3 V. It has a magnitude 8.40 companion at an angular separation of 28.6 arcseconds. An excess of infrared emission suggests the presence of circumstellar dust in this system. In the 24μm band, this debris disk has a mean temperature of 815 K, which puts it at a radius of 0.85 astronomical units (AU) from the primary star. Excess emission appears in the 70μm band, which has a temperature of 103 K and a radius out to 42 AU.

This star was located in the constellation Musca Borealis.

References

{{reflist|refs=

{{citation | first=F. | last=van Leeuwen |date=November 2007 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | arxiv=0708.1752 | s2cid=18759600 | postscript=. }}

{{citation | display-authors=1 | last1=Cowley | first1=A. | last2=Cowley | first2=C. | last3=Jaschek | first3=M. | last4=Jaschek | first4=C. | title=A study of the bright A stars. I. A catalogue of spectral classifications | journal=Astronomical Journal | volume=74 | pages=375–406 | doi=10.1086/110819 | bibcode=1969AJ.....74..375C | postscript=. |date=April 1969}}

{{citation | display-authors=1 | last1=Palmer | first1=D. R. | last2=Walker | first2=E. N. | last3=Jones | first3=D. H. P. | last4=Wallis | first4=R. E. | title=The radial velocities spectral types and projected rotational velocities of 633 bright northern A stars | journal=Royal Observatory Bulletin | volume=135 | page=385 | year=1968 | bibcode=1968RGOB..135..385P | postscript=. }}

{{citation | last1=Royer | first1=F. | last2=Zorec | first2=J. | last3=Gómez | first3=A. E. | title=Rotational velocities of A-type stars. III. Velocity distributions | journal=Astronomy and Astrophysics | volume=463 | issue=2 | pages=671–682 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R | arxiv=astro-ph/0610785 | postscript=. |date=February 2007| s2cid=18475298 }}

{{citation | last1=Osawa | first1=K. | last2=Hata | first2=S. | title=Three colour photometry of B8-A2 stars | journal=Annals of the Tokyo Astronomical Observatory | volume=6 | page=148 | year=1960 | bibcode=1960AnTok...6..148O | postscript=. }}

{{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 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | postscript=. |date=September 2008| doi-access=free | s2cid=14878976 }}

{{citation | display-authors=1 | last1=Trilling | first1=D. E. | last2=Stansberry | first2=J. A. | last3=Stapelfeldt | first3=K. R. | last4=Rieke | first4=G. H. | last5=Su | first5=K. Y. L. | last6=Gray | first6=R. O. | last7=Corbally | first7=C. J. | last8=Bryden | first8=G. | last9=Chen | first9=C. H. | title=Debris disks in main-sequence binary systems | journal=The Astrophysical Journal | volume=658 | issue=2 | pages=1264–1288 | doi=10.1086/511668 | bibcode=2007ApJ...658.1289T | arxiv=astro-ph/0612029 | postscript=. |date=April 2007| s2cid=14867168 }}

}}

External links

[http://aladin.u-strasbg.fr/AladinPreview?-c=02+40+41.0755%2B27+03+39.394&ident=*++33+Ari&submit=Aladin+previewer Aladin previewer]
[http://aladin.u-strasbg.fr/java/nph-aladin.pl?script=get+Aladin+*++33+Ari+11arcmin%3Bget+simbad+*++33+Ari+11arcmin&from=Simbad4&submit=Aladin+applet Aladin sky atlas]
[http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%20782 HR 782]
[http://vizier.u-strasbg.fr/viz-bin/VizieR-S?CCDM%20J02407%2b2704A CCDM J02407+2704]

016628

Category:Binary stars

012489

Arietis, 33

Category:Aries (constellation)

Category:A-type main-sequence stars

0782

Category:Durchmusterung objects