Epsilon Boötis: Perbedaan antara revisi
Tampilan
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{{Starbox begin |
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| name=Epsilon Boötis A/B |
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}} |
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{{Starbox image |
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| image = |
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<div style="position: relative">[[Berkas:Boötes IAU.svg|250px|alt=Diagram showing star positions and boundaries of the Boötes constellation and its surroundings]] |
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<div style="position: absolute; left: 41.5%; top: 49.2%">[[Berkas:Cercle rouge 100%.svg|12px]]</div> |
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</div> |
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| caption=Lokasi ε Boötes (dilingkari) |
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}} |
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{{Starbox observe |
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| epoch = J2000 |
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| ra = {{RA|14|44|59.21746}}<ref name=aaa474_2_653/> |
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| dec = {{DEC|+27|04|27.2099}}<ref name=aaa474_2_653/> |
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| appmag_v = 2.37<ref name=clpl4_99/> / 5.12<ref name=SIMBAD_B/> |
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| constell = [[Boötes]] |
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}} |
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{{Starbox character |
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| class = K0 II-III<ref name=aj110_2425/> + A2 V<ref name=aj74_375/> |
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| b-v = +0.97<ref name=clpl4_99/> |
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| u-b = +0.73<ref name=clpl4_99/> |
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| r-i = |
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| v-r = |
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| variable = |
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}} |
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{{Starbox astrometry |
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| radial_v = −16.31<ref name=aj135_1_209/> |
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| prop_mo_ra = −50.95<ref name=aaa474_2_653/> |
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| prop_mo_dec = +21.07<ref name=aaa474_2_653/> |
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| parallax = 16.10 |
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| p_error = 0.66 |
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| parallax_footnote = <ref name=aaa474_2_653/> |
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| absmag_v = −1.61<ref name=Anderson2012/> |
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}} |
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{{Starbox detail |
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| component1 = A |
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| mass = 4.6<ref name=aaa352_217/> |
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| radius = 33<ref name=aj135_1_209/> |
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| luminosity = 501<ref name=aj135_1_209/> |
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| temperature = 4,550<ref name=aj135_1_209/> |
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| gravity = 2.2<ref name=aj135_1_209/> |
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| metal = –0.13<ref name=aj135_1_209/> |
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| rotational_velocity = 10.9<ref name=aj135_1_209/> |
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| age_myr = {{nowrap|37.4 ± 4.2}}<ref name=mnras410_1_190/> |
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| component2 = B |
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| rotational_velocity2 = 123<ref name=aaa393_897/> |
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}} |
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{{Starbox catalog |
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| names = [[Bayer designation|ε]] Boo, Izar, Pulcherrima, Mirac, Mirak, Mirach, [[Flamsteed designation|36]] Boo, [[Bonner Durchmusterung|BD]]+27° 2417, [[Hipparcos catalogue|HIP]] 72105<ref name=SIMBAD/><br>'''A:''' [[Henry Draper catalogue|HD]] 129989, [[Harvard Revised catalogue|HR]] 5506, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 83500.<ref name=SIMBAD_A/><br>'''B:''' HD 129988, HR 5505.<ref name=SIMBAD_B/> |
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}} |
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{{Starbox reference |
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|Simbad=eps+Boo |
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}} |
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{{Starbox end}} |
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'''Epsilon Boötis (ε Boo / ε Boötis)''' adalah salah satu [[bintang]] di [[rasi]] [[Boötes]]. [[Bintang]] ini merupakan [[bintang ganda]] dengan [[magnitudo]] 2.35 dan berjarak 210 [[tahun cahaya]]. |
'''Epsilon Boötis (ε Boo / ε Boötis)''' adalah salah satu [[bintang]] di [[rasi]] [[Boötes]]. [[Bintang]] ini merupakan [[bintang ganda]] dengan [[magnitudo]] 2.35 dan berjarak 210 [[tahun cahaya]]. |
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== Etimologi == |
== Etimologi == |
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[[Bintang]] ini memiliki nama tradisional '''Izar''' atau '''Pulcherrima.'''. Nama ''Izar'' berasal dari |
[[Bintang]] ini memiliki nama tradisional '''Izar''' atau '''Pulcherrima.'''. Nama ''Izar'' berasal dari [[bahasa Arab]] إزار ’izār, sedangkan ''Pulcherrima'' berasal dari [[bahasa Latin]] yang berarti "yang tercinta" [[Nama]] lain yang diberikan oleh para astronom untuk [[bintang]] ini adalah: |
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{| class="wikitable" |
{| class="wikitable" |
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Baris 13: | Baris 67: | ||
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| 梗河东星 / Gěnghédōngxīng|| [[China]] || [[bintang]] di timur [[rasi]] [[Daftar asterisme di Akar#Lembing di Langit|Lembing di Langit]]<ref>http://www.chinese-tools.com/tools/sinograms.html</ref> |
| 梗河东星 / Gěnghédōngxīng|| [[China]] || [[bintang]] di timur [[rasi]] [[Daftar asterisme di Akar#Lembing di Langit|Lembing di Langit]]<ref>http://www.chinese-tools.com/tools/sinograms.html</ref> |
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|- |
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| Al Minṭakah al ʽAwwāʼ|| [[Bahasa Arab|Arab]] || ikat pinggang sang penggembala<ref name=sb1>http://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Bootes*.html</ref> |
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|- |
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| Cingulum Latratoris|| [[Bahasa Latin|Latin]] || ikat pinggang sang penggembala<ref name="wiki-indonesia.club">http://wiki-indonesia.club/w/index.php?title=Epsilon_Bo%C3%B6tis&action=edit§ion=1</ref> |
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|- |
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| Quae in crure dextro juxta cingulum (Almagest)|| [[Bahasa Latin|Latin]] || yang di kaki kanan, dekat ikat pinggang (sang penggembala)<ref name="wiki-indonesia.club"/> |
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|} |
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Selain [[rasi]] [[Boötes]], bintang ini juga merupakan anggota dari berbagai rasi atau asterisma berikut: |
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{| class="wikitable" |
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|- |
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! nama rasi / asterisma |
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! asal |
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! arti |
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! anggota lainnya |
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|- |
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| Kite<ref>{{Cite web |url=http://www.bisque.com/tom/asterisms/bootesa.asp#The%20Kite |title=Salinan arsip |access-date=2009-08-11 |archive-date=2010-01-25 |archive-url=https://web.archive.org/web/20100125091125/http://www.bisque.com/tom/asterisms/bootesa.asp#The%20Kite |dead-url=yes }}</ref> || || layang-layang|| [[Arcturus|α Boo]], [[Delta Boötis|δ Boo]], [[Beta Boötis|β Boo]], [[Gamma Boötis|γ Boo]], [[Rho Boötis|ρ Boo]] |
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|- |
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| 梗河 / Gěnghé || [[China]] || [[Daftar asterisme di Akar#Lembing di Langit|Lembing di Langit]]|| [[Sigma Boötis|σ Boo]], [[Rho Boötis|ρ Boo]] |
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|- |
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| Al Aulād al Nadhlāt<ref name=sb1/> || [[Bahasa Arab|Arab]] || anak dari si kecil|| [[Rho Boötis|ρ Boo]], [[Sigma Boötis|σ Boo]], [[Psi Boötis|ψ Boo]] |
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|} |
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== Referensi == |
== Referensi == |
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{{reflist |
{{reflist|refs= |
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<ref name=aaa474_2_653>{{cite journal | 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 }}</ref> |
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<ref name=Anderson2012>{{citation |
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| title=XHIP: An extended hipparcos compilation |
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| last1=Anderson | first1=E. | last2=Francis | first2=Ch. |
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| journal=Astronomy Letters |
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| volume=38 | issue=5 | pages=331 | year=2012 |
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| bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 |
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| arxiv=1108.4971 | postscript=. }}</ref> |
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<ref name=aj135_1_209>{{citation | display-authors=1 | last1=Massarotti | first1=Alessandro | last2=Latham | first2=David W. | last3=Stefanik | first3=Robert P. | last4=Fogel | first4=Jeffrey | title=Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity | journal=The Astronomical Journal | volume=135 | issue=1 | pages=209–231 |date=January 2008 | doi=10.1088/0004-6256/135/1/209 | bibcode=2008AJ....135..209M }}</ref> |
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<ref name=clpl4_99>{{cite journal | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | year=1966 | bibcode=1966CoLPL...4...99J }}</ref> |
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<ref name=aj74_375>{{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 |date=April 1969 | doi=10.1086/110819 | bibcode=1969AJ.....74..375C }}</ref> |
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<ref name=aaa393_897>{{citation | display-authors=1 | 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 in the northern hemisphere. II. Measurement of v sin i | journal=Astronomy and Astrophysics | volume=393 | pages=897–911 |date=October 2002 | doi=10.1051/0004-6361:20020943 | bibcode=2002A&A...393..897R |arxiv = astro-ph/0205255 }}</ref> |
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<ref name=aj110_2425>{{citation | last1=Luck | first1=R. Earle | last2=Wepfer | first2=Gordon G. | title=Chemical Abundances for F and G Luminosity Class II Stars | journal=Astronomical Journal | volume=110 | page=2425 |date=November 1995 | doi=10.1086/117702 | bibcode=1995AJ....110.2425L }}</ref> |
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<ref name=SIMBAD>{{citation | title=CCDM J14449+2704AB | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=CCDM+J14449 | accessdate=2012-01-09 }}</ref> |
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<ref name=SIMBAD_A>{{citation | title=HR 5505 -- Star in double system | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HR+5505 | accessdate=2012-01-09 }}</ref> |
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<ref name=SIMBAD_B>{{citation | title=HR 5506 -- Star in double system | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HR+5505 | accessdate=2012-01-09 }}</ref> |
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<ref name=aaa352_217>{{citation | last1=Gondoin | first1=P. | title=Evolution of X-ray activity and rotation on G-K giants | journal=Astronomy and Astrophysics | volume=352 | pages=217–227 |date=December 1999 | bibcode=1999A&A...352..217G }}</ref> |
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}} |
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{{astronomi-stub}} |
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[[Kategori:Rasi bintang Boötes]] |
[[Kategori:Rasi bintang Boötes]] |
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[[en:Epsilon Boötis]] |
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[[es:Izar (estrella)]] |
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[[fi:Epsilon Bootis]] |
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[[fr:Epsilon Bootis]] |
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[[ja:イザール]] |
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[[ko:목동자리 엡실론]] |
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[[lb:Izar (Stär)]] |
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[[nl:Izar]] |
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[[pl:Izar]] |
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[[sk:Izar]] |
Revisi terkini sejak 5 Januari 2023 02.12
Data pengamatan Epos J2000 Ekuinoks J2000 | |
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Rasi bintang | Boötes |
Asensio rekta | 14j 44m 59.21746d[1] |
Deklinasi | +27° 04′ 27.2099″[1] |
Magnitudo tampak (V) | 2.37[2] / 5.12[3] |
Ciri-ciri | |
Kelas spektrum | K0 II-III[4] + A2 V[5] |
Indeks warna U−B | +0.73[2] |
Indeks warna B−V | +0.97[2] |
Astrometri | |
Kecepatan radial (Rv) | −16.31[6] km/s |
Gerak diri (μ) | RA: −50.95[1] mdb/thn Dek.: +21.07[1] mdb/thn |
Paralaks (π) | 16,10±0,66[1] mdb |
Jarak | 203 ± 8 tc (62 ± 3 pc) |
Magnitudo mutlak (MV) | −1.61[7] |
Detail | |
A | |
Massa | 4.6[8] M☉ |
Radius | 33[6] R☉ |
Luminositas | 501[6] L☉ |
Gravitasi permukaan (log g) | 2.2[6] |
Suhu | 4,550[6] K |
Metalisitas | –0.13[6] |
Kecepatan rotasi (v sin i) | 10.9[6] km/s |
Usia | 37.4 ± 4.2[9] megatahun |
B | |
Kecepatan rotasi (v sin i) | 123[10] km/s |
Penamaan lain | |
Referensi basis data | |
SIMBAD | data |
Epsilon Boötis (ε Boo / ε Boötis) adalah salah satu bintang di rasi Boötes. Bintang ini merupakan bintang ganda dengan magnitudo 2.35 dan berjarak 210 tahun cahaya.
Etimologi
[sunting | sunting sumber]Bintang ini memiliki nama tradisional Izar atau Pulcherrima.. Nama Izar berasal dari bahasa Arab إزار ’izār, sedangkan Pulcherrima berasal dari bahasa Latin yang berarti "yang tercinta" Nama lain yang diberikan oleh para astronom untuk bintang ini adalah:
nama lain | asal bahasa | arti |
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梗河一 / Gěnghéyī | China | bintang pertama di rasi Lembing di Langit[13] |
梗河东星 / Gěnghédōngxīng | China | bintang di timur rasi Lembing di Langit[14] |
Al Minṭakah al ʽAwwāʼ | Arab | ikat pinggang sang penggembala[15] |
Cingulum Latratoris | Latin | ikat pinggang sang penggembala[16] |
Quae in crure dextro juxta cingulum (Almagest) | Latin | yang di kaki kanan, dekat ikat pinggang (sang penggembala)[16] |
Selain rasi Boötes, bintang ini juga merupakan anggota dari berbagai rasi atau asterisma berikut:
nama rasi / asterisma | asal | arti | anggota lainnya |
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Kite[17] | layang-layang | α Boo, δ Boo, β Boo, γ Boo, ρ Boo | |
梗河 / Gěnghé | China | Lembing di Langit | σ Boo, ρ Boo |
Al Aulād al Nadhlāt[15] | Arab | anak dari si kecil | ρ Boo, σ Boo, ψ Boo |
Referensi
[sunting | sunting sumber]- ^ a b c d e van Leeuwen, F. (November 2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752 . Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- ^ a b c Johnson, H. L.; et al. (1966). "UBVRIJKL photometry of the bright stars". Communications of the Lunar and Planetary Laboratory. 4 (99). Bibcode:1966CoLPL...4...99J.
- ^ a b "HR 5506 -- Star in double system", SIMBAD, Centre de Données astronomiques de Strasbourg, diakses tanggal 2012-01-09
- ^ Luck, R. Earle; Wepfer, Gordon G. (November 1995), "Chemical Abundances for F and G Luminosity Class II Stars", Astronomical Journal, 110: 2425, Bibcode:1995AJ....110.2425L, doi:10.1086/117702
- ^ Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819
- ^ a b c d e f g Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity", The Astronomical Journal, 135 (1): 209–231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971 , Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
- ^ Gondoin, P. (December 1999), "Evolution of X-ray activity and rotation on G-K giants", Astronomy and Astrophysics, 352: 217–227, Bibcode:1999A&A...352..217G
- ^ Kesalahan pengutipan: Tag
<ref>
tidak sah; tidak ditemukan teks untuk ref bernamamnras410_1_190
- ^ Royer, F.; et al. (October 2002), "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i", Astronomy and Astrophysics, 393: 897–911, arXiv:astro-ph/0205255 , Bibcode:2002A&A...393..897R, doi:10.1051/0004-6361:20020943
- ^ "CCDM J14449+2704AB", SIMBAD, Centre de Données astronomiques de Strasbourg, diakses tanggal 2012-01-09
- ^ "HR 5505 -- Star in double system", SIMBAD, Centre de Données astronomiques de Strasbourg, diakses tanggal 2012-01-09
- ^ salah satu rasi bintang menurut bangsa Cina
- ^ http://www.chinese-tools.com/tools/sinograms.html
- ^ a b http://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Bootes*.html
- ^ a b http://wiki-indonesia.club/w/index.php?title=Epsilon_Bo%C3%B6tis&action=edit§ion=1
- ^ "Salinan arsip". Diarsipkan dari versi asli tanggal 2010-01-25. Diakses tanggal 2009-08-11.