Jump to content

HD 33266: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
Rewrite because it was rough. Also, go check out the study on this star and CP Cygni.
Line 1: Line 1:
{{Short description|A-type solitary star in the constellation Camelopardalis}}
{{Short description|A-type solitary star in the constellation Camelopardalis}}
{{Starbox begin}}
{{Starbox begin
| name = [[Henry Draper Catalogue|HD]] 33266
}}
{{Starbox observe
{{Starbox observe
⚫
| constell = [[Camelopardalis]]
⚫
|ra = {{RA|05|13|02.81}}<ref name=GaiaDR2/>
| epoch = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
|dec = {{DEC|+61|51|00.15}}<ref name=GaiaDR2/>
|appmag_v = 6.167<ref name=Hog2000/>
| ra = {{RA|05|13|02.8149}}<ref name = EDR3/>
⚫
| dec = {{DEC|+61|51|00.1463}}<ref name = EDR3/>
|epoch = J2000.0
| appmag_v = 6.17{{±|0.01}}<ref name = Tycho2000/>
⚫
|constell = [[Camelopardalis]]
}}
}}
{{Starbox character
{{Starbox character
|class = A2 III<ref name=Cowley1969/>
| type = [[main sequence]]<ref name = Caliskan2015/>
|b-v = {{val|0.032|0.005}}<ref name=Anderson2012/>
| class = A2 Vam<ref group=note name="SpecClass"/>
| b-v = +0.04<ref name = Mermilliod1986/>
| u-b = +0.08<ref name = Mermilliod1986/>
}}
}}
{{Starbox astrometry
{{Starbox astrometry
|radial_v = {{val|-4.4|2}}<ref name=Wilson1953/>
| radial_v = −4.4{{±|2.9}}<ref name = Gontcharov2006/>
|parallax = 6.7221
| parallax = 6.7795
|p_error = 0.0481
| p_error = 0.0364
| prop_mo_ra = −12.154
|parallax_footnote = <ref name=GaiaDR2/>
|prop_mo_ra = -12.055
| prop_mo_dec = +2.135
⚫
| absmag_v = +0.58<ref name = Anderson2012/>
|prop_mo_dec = 2.037
|prop_mo_footnote = <ref name=GaiaDR2/>
| parallax_footnote = <ref name = EDR3/>
|absmag_v = 0.58<ref name=Anderson2012/>
| pm_footnote = <ref name = EDR3/>
}}
}}
{{Starbox detail
{{Starbox detail
|mass = {{val|2.45|0.34|0.32}}<ref name=Stassun2019/>
| mass = 2.45{{±|0.32|0.34}}<ref name = Stassun2019/>
|radius = {{val|3.14|0.08}}<ref name=Stassun2019/>
| radius = 3.14{{±|0.08}}<ref name = Stassun2019/>
|luminosity = {{val|75.9|7.8|5.8}}<ref name=Stassun2019/>
| luminosity = 49.7<ref name = McDonald2012/>
|gravity = {{val|3.83|0.07|0.06}}<ref name=Stassun2019/>
| temperature = 8,952<ref name = McDonald2012/>
|metal_fe = -0.07<ref name=Anders2019/>
| gravity = 3.83{{±|0.07|0.06}}<ref name = Stassun2019/>
|temperature = {{val|9610|300|204|fmt=commas}}<ref name=Stassun2019/>
| metal_fe = 0.00<ref name = Gontcharov2012/>
|rotational_velocity = 15<ref name=Royer2002/>
| rotational_velocity = 15{{±|1}}<ref name = Royer2002/>
| age_myr = 340<ref name = Gontcharov2012/>
}}
}}
{{Starbox catalog
{{Starbox catalog
|names = {{odlist|BD=+61 766|HR=1675|HIP=24313|SAO=13409}}
| names = {{odlist|HD = 33266|AG = +61°422|BD = +61°766|GC = 6345|HIP = 24313|HR = 1675|SAO = 13409}}
}}
}}
{{Starbox reference
{{Starbox reference
|Simbad = HD+33266
| Simbad = HR+1675
}}
}}
{{Starbox end}}
{{Starbox end}}


'''HD 33266 (HR 1675)''' is a solitary [[star]] located in the [[constellation]] [[Camelopardalis]]. With an [[apparent magnitude]] of 6.167, it is visible to the [[naked eye|unaided eye]]. This is star is currently located 485 [[light years]] based on [[parallax]], but is drifting closer with a [[radial velocity]] of 4.4 km/s.
'''HD 33266''' ('''HR 1675''') is a solitary star in the northern [[circumpolar constellation]] [[Camelopardalis]]. It has an [[apparent magnitude]] of 6.17, making it faintly visible to the [[naked eye]]. Located 481 [[light year]]s away, it is approaching the [[Sun]] with a heliocentric [[radial velocity]] of {{val|-4.4|ul=km/s}}.


HD 33266 is an [[A-type star]] with 2.45 times the [[mass of the Sun]] and 3.14 times the [[radius of the Sun]].<ref name = Stassun2019/> It shines at {{val|49.7|ul=solar luminosity)) from its [[photosphere]] at an [[effective temperature]] of 8,952 [[Kelvin|K]],<ref name = McDonald2012/> giving it a white glow. Due to HD 33266 being an [[Am star]],<ref name = Caliskan2015/> it spins slowly with a [[projected rotational velocity]] of {{val|15|ul=km/s}}<ref name = Royer2002/> at an age of 340 [[million years]].<ref name = Gontcharov2012/> Its [[metallicity]] − elements heaver than [[helium]] − is at solar level.<ref name = Gontcharov2012/>
==Properties==

HD 33266 has a classification of “A2III”, which states that it is an [[A-type star]] that has exhausted [[hydrogen]] at its core and left the [[main sequence]]. It has 2.45 times the mass of the [[Sun]], but has 3.14 times the Sun’s radius. It radiates at 75.92 [[solar luminosities]], and has an [[effective temperature]] of 9610 [[Kelvin|K]], which gives it a white hue. HD 3266 is slightly metal deficient, with 85% the abundance of heavy metals compared to the Sun.
==Note==
{{Reflist|group=note|refs=
<ref group=note name="SpecClass">Despite it being referenced as either A2 III or IV, this is actually an Am [[main sequence star]].</ref>
}}


==References==
==References==
{{reflist|refs
{{reflist||refs=


<ref name=GaiaDR2>{{Cite DR2|285645737849125504}}</ref>
<ref name = EDR3>{{Cite Gaia EDR3|285645737849125504}}</ref>


<ref name = Tycho2000>{{cite journal |last1=Høg |first1=E. |last2=Fabricius |first2=C. |last3=Makarov |first3=V. V. |last4=Urban |first4=S. |last5=Corbin |first5=T. |last6=Wycoff |first6=G. |last7=Bastian |first7=U. |last8=Schwekendiek |first8=P. |last9=Wicenec |first9=A. |title=The Tycho-2 catalogue of the 2.5 million brightest stars |journal=Astronomy and Astrophysics |date=March 2000 |volume=355 |pages=L27–L30 |issn=0004-6361 |bibcode=2000A&A...355L..27H}}</ref>
<ref name=Hog2000>{{Citation
|title = The Tycho-2 catalogue of the 2.5 million brightest stars.
|last1 = Hog |first1 = E.
|journal = Astronomy and Astrophysics
|volume = 355 |pages = L27-30 |date = March 2000
|bibcode = 2000A&A...355L..27H
}}</ref>


<ref name = Mermilliod1986>{{cite journal |last1=Mermilliod |first1=J. -C. |title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) |journal=Catalogue of Eggen's UBV data |date=1986 |pages=0 |bibcode=1986EgUBV........0M}}</ref>
<ref name=Cowley1969>{{Citation
|title = A study of the bright A stars. I. A catalogue of spectral classifications.
|last1 = Cowley |first1 = A. |last2 = Cowley |first2 = C.
|journal = Astronomical Journal
|volume = 74 |pages = 375–406 |date = April 1969
|bibcode = 1969AJ.....74..375C |doi = 10.1086/110819
}}</ref>


<ref name = Gontcharov2006>{{cite journal |last1=Gontcharov |first1=G. A. |title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system |journal=Astronomy Letters |date=November 2006 |volume=32 |issue=11 |pages=759–771 |doi=10.1134/S1063773706110065 |issn=1063-7737 |bibcode=2006AstL...32..759G |arxiv=1606.08053|s2cid=119231169 }}</ref>
<ref name=Wilson1953>{{Citation
|title = General catalogue of stellar radial velocities.
|last1 = Wilson |first1 = Ralph Elmer
|journal = Carnegie Institution of Washington
|date = 1953
|bibcode = 1953GCRV..C......0W
}}</ref>


<ref name = Anderson2012>{{cite journal |last1=Anderson |first1=E. |last2=Francis |first2=Ch. |title=XHIP: An extended hipparcos compilation |journal=Astronomy Letters |date=May 2012 |volume=38 |issue=5 |pages=331–346 |doi=10.1134/S1063773712050015 |language=en |issn=1063-7737 |bibcode=2012AstL...38..331A |arxiv=1108.4971|s2cid=119257644 }}</ref>
⚫
<ref name=Anderson2012>{{Citation
|title = XHIP: An extended hipparcos compilation
|last1 = Anderson |first1 = E. |last2 = Francis |first2= Ch.
|journal = Astronomy Letters
|volume = 38 |pages = 331–346 |date = May 2012
|issue = 5 |bibcode = 2012AstL...38..331A |doi = 10.1134/S1063773712050015 |arxiv = 1108.4971
|s2cid = 119257644 }}</ref>


<ref name = Stassun2019>{{cite journal |display-authors=1 |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Paegert |first3=Martin |last4=Torres |first4=Guillermo |last5=Pepper |first5=Joshua |last6=Lee |first6=Nathan De |last7=Collins |first7=Kevin |last8=Latham |first8=David W. |last9=Muirhead |first9=Philip S. |last10=Chittidi |first10=Jay |last11=Rojas-Ayala |first11=Bárbara |last12=Fleming |first12=Scott W. |last13=Rose |first13=Mark E. |last14=Tenenbaum |first14=Peter |last15=Ting |first15=Eric B. |last16=Kane |first16=Stephen R. |last17=Barclay |first17=Thomas |last18=Bean |first18=Jacob L. |last19=Brassuer |first19=C. E. |last20=Charbonneau |first20=David |last21=Ge |first21=Jian |last22=Lissauer |first22=Jack J. |last23=Mann |first23=Andrew W. |last24=McLean |first24=Brian |last25=Mullally |first25=Susan |last26=Narita |first26=Norio |last27=Plavchan |first27=Peter |last28=Ricker |first28=George R. |last29=Sasselov |first29=Dimitar |last30=Seager |first30=S. |last31=Sharma |first31=Sanjib |last32=Shiao |first32=Bernie |last33=Sozzetti |first33=Alessandro |last34=Stello |first34=Dennis |last35=Vanderspek |first35=Roland |last36=Wallace |first36=Geoff |last37=Winn |first37=Joshua N. |title=The Revised TESS Input Catalog and Candidate Target List |journal=The Astronomical Journal |date=9 September 2019 |volume=158 |issue=4 |pages=138 |doi=10.3847/1538-3881/ab3467 |issn=0004-6256 |bibcode=2019AJ....158..138S |arxiv=1905.10694 |doi-access=free}}</ref>
<ref name=Stassun2019>{{Citation
|title = The Revised TESS Input Catalog and Candidate Target List
|last1 = Stassun |first1 = Kevian G.
|journal = The Astronomical Journal
|volume = 158 |issue = 4 |pages = 22 |date = October 2019
|bibcode = 2019AJ....158..138S |doi = 10.3847/1538-3881/ab3467 |arxiv = 1905.10694
|s2cid = 166227927 }}</ref>


<ref name = Gontcharov2012>{{cite journal |last1=Gontcharov |first1=G. A. |title=Dependence of kinematics on the age of stars in the solar neighborhood |journal=Astronomy Letters |date=December 2012 |volume=38 |issue=12 |pages=771–782 |doi=10.1134/S1063773712120031 |issn=0320-0108 |bibcode=2012AstL...38..771G |arxiv=1606.08814}}</ref>
<ref name=Anders2019>{{Citation
|title = Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18
|last1 = Anders |first1 = F.
|journal = Astronomy & Astrophysics
|volume = 628 |pages = 38 |date = August 2019
|bibcode = 2019A&A...628A..94A |doi = 10.1051/0004-6361/201935765 |arxiv = 1904.11302
|s2cid = 131780028 }}</ref>


<ref name = McDonald2012>{{cite journal |last1=McDonald |first1=I. |last2=Zijlstra |first2=A. A. |last3=Boyer |first3=M. L. |title=Fundamental parameters and infrared excesses of Hipparcos stars: Parameters and IR excesses from Hipparcos |journal=Monthly Notices of the Royal Astronomical Society |date=21 November 2012 |volume=427 |issue=1 |pages=343–357 |doi=10.1111/j.1365-2966.2012.21873.x |issn=0035-8711 |bibcode=2012MNRAS.427..343M |arxiv=1208.2037 |doi-access=free}}</ref>
<ref name=Royer2002>{{Citation

|title = Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
<ref name = Royer2002>{{cite journal |last1=Royer |first1=F. |last2=Grenier |first2=S. |last3=Baylac |first3=M.-O. |last4=Gómez |first4=A. E. |last5=Zorec |first5=J. |title=Rotational velocities of A-type stars: II. Measurement of ${v\sin i}$ in the northern hemisphere |journal=Astronomy & Astrophysics |date=October 2002 |volume=393 |issue=3 |pages=897–911 |doi=10.1051/0004-6361:20020943 |issn=0004-6361 |bibcode=2002A&A...393..897R |arxiv=astro-ph/0205255 |doi-access=free}}</ref>
|last1 = Royer |first1 = F. |last2 = Grenier |first2 = S.

|journal = Astronomy and Astrophysics
<ref name = Caliskan2015>{{cite journal |last1=Çalışkan |first1=Şeyma |last2=Kılıçoğlu |first2=Tolgahan |last3=Elmaslı |first3=Aslı |last4=Nasolo |first4=Yahya |last5=Avcı |first5=Zeynep |last6=Albayrak |first6=Berahitdin |title=Chemical abundance analysis of the A-type stars CP Cyg and HD 33266 |journal=New Astronomy |date=January 2015 |volume=34 |pages=6–10 |doi=10.1016/j.newast.2014.05.001 |issn=1384-1076 |bibcode=2015NewA...34....6C}}</ref>
|volume = 393 |pages = 897–911 |date = October 2002
|bibcode = 2002A&A...393..897R|doi = 10.1051/0004-6361:20020943 |arxiv = astro-ph/0205255
|s2cid = 14070763 }}</ref>


}}
}}



{{Stars of Camelopardalis}}
{{Stars of Camelopardalis}}
[[Category:Camelopardalis (constellation)]]
[[Category:Camelopardalis (constellation)]]

Revision as of 00:41, 24 April 2022

HD 33266
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Camelopardalis
Right ascension 05h 13m 02.8149s[1]
Declination +61° 51′ 00.1463″[1]
Apparent magnitude (V) 6.17±0.01[2]
Characteristics
Evolutionary stage main sequence[3]
Spectral type A2 Vam[note 1]
U−B color index +0.08[4]
B−V color index +0.04[4]
Astrometry
Radial velocity (Rv)−4.4±2.9[5] km/s
Proper motion (μ) RA: −12.154 mas/yr[1]
Dec.: +2.135 mas/yr[1]
Parallax (π)6.7795 ± 0.0364 mas[1]
Distance481 ± 3 ly
(147.5 ± 0.8 pc)
Absolute magnitude (MV)+0.58[6]
Details
Mass2.45+0.32
−0.34[7] M☉
Radius3.14±0.08[7] R☉
Luminosity49.7[8] L☉
Surface gravity (log g)3.83+0.07
−0.06[7] cgs
Temperature8,952[8] K
Metallicity [Fe/H]0.00[9] dex
Rotational velocity (v sin i)15±1[10] km/s
Age340[9] Myr
Other designations
AG+61°422, BD+61°766, GC 6345, HD 33266, HIP 24313, HR 1675, SAO 13409
Database references
SIMBADdata

HD 33266 (HR 1675) is a solitary star in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 6.17, making it faintly visible to the naked eye. Located 481 light years away, it is approaching the Sun with a heliocentric radial velocity of −4.4 km/s.

HD 33266 is an A-type star with 2.45 times the mass of the Sun and 3.14 times the radius of the Sun.[7] It shines at {{val|49.7|ul=solar luminosity)) from its photosphere at an effective temperature of 8,952 K,[8] giving it a white glow. Due to HD 33266 being an Am star,[3] it spins slowly with a projected rotational velocity of 15 km/s[10] at an age of 340 million years.[9] Its metallicity − elements heaver than helium − is at solar level.[9]

Note

  1. ^ Despite it being referenced as either A2 III or IV, this is actually an Am main sequence star.

References

  1. ^ a b c d Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  2. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
  3. ^ a b Çalışkan, Şeyma; Kılıçoğlu, Tolgahan; Elmaslı, Aslı; Nasolo, Yahya; Avcı, Zeynep; Albayrak, Berahitdin (January 2015). "Chemical abundance analysis of the A-type stars CP Cyg and HD 33266". New Astronomy. 34: 6–10. Bibcode:2015NewA...34....6C. doi:10.1016/j.newast.2014.05.001. ISSN 1384-1076.
  4. ^ a b Mermilliod, J. -C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV data: 0. Bibcode:1986EgUBV........0M.
  5. ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN 1063-7737. S2CID 119231169.
  6. ^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
  7. ^ a b c d Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256.
  8. ^ a b c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (21 November 2012). "Fundamental parameters and infrared excesses of Hipparcos stars: Parameters and IR excesses from Hipparcos". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–357. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. ISSN 0035-8711.
  9. ^ a b c d Gontcharov, G. A. (December 2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771–782. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. ISSN 0320-0108.
  10. ^ a b Royer, F.; Grenier, S.; Baylac, M.-O.; Gómez, A. E.; Zorec, J. (October 2002). "Rotational velocities of A-type stars: II. Measurement of ${v\sin i}$ in the northern hemisphere". Astronomy & Astrophysics. 393 (3): 897–911. arXiv:astro-ph/0205255. Bibcode:2002A&A...393..897R. doi:10.1051/0004-6361:20020943. ISSN 0004-6361.


Retrieved from "https://en.wikipedia.org/w/index.php?title=HD_33266&oldid=1084355260"