Epsilon Draconis: Perbedaan antara revisi
Tampilan
Konten dihapus Konten ditambahkan
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Infobox Tag: Suntingan perangkat seluler Suntingan peramban seluler |
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Baris 1: | Baris 1: | ||
{{Starbox begin | |
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name=Epsilon Draconis}} |
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{{Starbox image |
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| image=[[File:Draco constellation map.png|250px]] |
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| caption=Lokasi ε Draconis (kiri atas).}} |
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{{Starbox observe |
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|epoch=J2000 |
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| ra={{RA|19|48|10.3521}}<ref name="SIMBAD">{{cite simbad |
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| title=* eps Dra |
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| accessdate=2010-12-18}}</ref> |
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| dec={{DEC|70|16|04.549}}<ref name="SIMBAD"/> |
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| appmag_v=3.9974<ref name="LEEUWEN"/> |
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| constell=[[Draco (constellation)|Draco]]}} |
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{{Starbox character |
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| class=G8III+F5III <ref name="SIMBAD"/> |
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|b-v=+0.88 <ref name="MERMILLIOD">{{cite journal |
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| author=Mermilliod, J.-C. |
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| title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) |
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| journal=Catalogue of Eggen's UBV data. SIMBAD |
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| year=1986 |
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| bibcode=1986EgUBV........0M}}</ref> |
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|u-b=+0.48<ref name="MERMILLIOD"/> |
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| variable= }} |
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{{Starbox astrometry |
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|radial_v=+3.1<ref name="SIMBAD" /> |
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|prop_mo_ra=+79.31<ref name="LEEUWEN"/> |
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|prop_mo_dec=39.08<ref name="LEEUWEN"/> |
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|parallax=22.04 |
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|p_error=0.37 |
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|parallax_footnote=<ref name="LEEUWEN">{{cite journal |
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| title=Hipparcos, the New Reduction |
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| author=van Leeuwen, F |
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|date=November 2007 |
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| publisher=[[Centre de Données astronomiques de Strasbourg]] |
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| pages=653–664 |
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| issue=2 |
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| volume=474 |
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| url=http://vizier.u-strasbg.fr/viz-bin/VizieR-S?HIP%2068756 |
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| doi=10.1051/0004-6361:20078357 |
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| journal=[[Astronomy and Astrophysics]] |
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| bibcode=2007A&A...474..653V |
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| accessdate=2010-12-18|arxiv = 0708.1752 }}</ref> |
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|absmag_v=0.71<ref name="LEEUWEN"/>}} |
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{{Starbox detail |
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|mass=2.7<ref name="MALLIK1">{{cite journal |
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| title=Li abundances and velocities in F and G stars |
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|author1=Mallik, Sushma V. |author2=Parthasarathy, M. |author3=Pati, A. K. |date=October 2003 |
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| work=[[VizieR]] |
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| publisher=[[Centre de Données astronomiques de Strasbourg]] |
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| url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=J/A%2bA/409/251/table1&recno=121 |
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| accessdate=2010-12-18}}</ref><ref name="MALLIK2">{{cite journal |
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| title=Lithium and rotation in F and G dwarfs and subgiants |
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|author1=Mallik, Sushma V. |author2=Parthasarathy, M. |author3=Pati, A. K. |date=October 2003 |
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| journal=Astronomy and Astrophysics |
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| volume=409 |
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| issue=1 |
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| pages=251–261 |
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| url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2003A%2526A...409..251MFUL |
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| doi=10.1051/0004-6361:20031084 |
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| bibcode=2003A&A...409..251M |
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| accessdate=2010-12-18}}</ref> |
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|radius=10 |
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|luminosity=~60 |
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|temperature=5,068 <ref name="MALLIK1"/> |
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|metal_fe=-0.31<ref name="SOUBIRIAN">{{cite journal |
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|author1=Soubiran, C. |author2=Bienaymé, O. |author3=Mishenina, T. V. |author4=Kovtyukh, V. V. | title=Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants |
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| journal=Astronomy and Astrophysics |
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| year=2008 |
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| volume=480 |
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| issue=1 |
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| pages=91–101 |
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| url=http://cds.aanda.org/index.php?option=article&access=bibcode&bibcode=2008A%2526A...480...91S |
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| format=PDF |
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| accessdate=2010-12-18 |
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| bibcode=2008A&A...480...91S |
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| doi=10.1051/0004-6361:20078788|arxiv = 0712.1370 }}</ref> |
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|rotational_velocity=1.2 <ref name="MALLIK1"/> |
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|age_myr= 500<ref name="MALLIK1"/>}} |
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{{Starbox catalog |
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|names=Tyl, [[Bayer designation|ε Dra]], [[Flamsteed designation|63 Dra]], [[Harvard Revised catalogue|HR]] 7582, [[Astronomische Gesellschaft Katalog|AG]]+70° 689, [[Bonner Durchmusterung|BD]]+69° 1070, [[Henry Draper Catalogue|HD]] 188119, [[Hipparcos catalogue|HIP]] 97433, [[General Catalogue of Trigonometric Stellar Parallaxes|PLX]] 4689, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 9540, [[Boss General Catalogue|GC]] 27471, [[Catalog of Components of Double and Multiple Stars|CCDM]] J19482+7016AB, [[2MASS]] J19481035+7016045, [[IRAS]] 19483+7008}} |
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{{Starbox reference |
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|Simbad=HD+188119}} |
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{{Starbox end}} |
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'''Epsilon Draconis (ε Dra / ε Draconis)''' adalah salah satu bintang di rasi [[Draco]]. Epsilon Draconis tergolong bintang dengan kelas K0 dan [[magnitudo]] 3.84. Bintang ini berada pada jarak 146 [[tahun cahaya]] dari [[Bumi]]. |
'''Epsilon Draconis (ε Dra / ε Draconis)''' adalah salah satu bintang di rasi [[Draco]]. Epsilon Draconis tergolong bintang dengan kelas K0 dan [[magnitudo]] 3.84. Bintang ini berada pada jarak 146 [[tahun cahaya]] dari [[Bumi]]. |
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Revisi per 21 Mei 2018 03.29
Data pengamatan Epos J2000 Ekuinoks J2000 | |
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Rasi bintang | Draco |
Asensio rekta | 19j 48m 10.3521d[1] |
Deklinasi | 70° 16′ 04.549″[1] |
Magnitudo tampak (V) | 3.9974[2] |
Ciri-ciri | |
Kelas spektrum | G8III+F5III [1] |
Indeks warna U−B | +0.48[3] |
Indeks warna B−V | +0.88 [3] |
Astrometri | |
Kecepatan radial (Rv) | +3.1[1] km/s |
Gerak diri (μ) | RA: +79.31[2] mdb/thn Dek.: 39.08[2] mdb/thn |
Paralaks (π) | 22,04±0,37[2] mdb |
Jarak | 148 ± 2 tc (45,4 ± 0,8 pc) |
Magnitudo mutlak (MV) | 0.71[2] |
Detail | |
Massa | 2.7[4][5] M☉ |
Radius | 10 R☉ |
Luminositas | ~60 L☉ |
Suhu | 5,068 [4] K |
Metalisitas [Fe/H] | -0.31[6] |
Kecepatan rotasi (v sin i) | 1.2 [4] km/s |
Usia | 500[4] megatahun |
Penamaan lain | |
Referensi basis data | |
SIMBAD | data |
Epsilon Draconis (ε Dra / ε Draconis) adalah salah satu bintang di rasi Draco. Epsilon Draconis tergolong bintang dengan kelas K0 dan magnitudo 3.84. Bintang ini berada pada jarak 146 tahun cahaya dari Bumi.
Etimologi
Bintang ini memiliki nama tradisional Tyl dan Kin Yu (bahasa China untuk "ikan emas"). Nama lainnya untuk bintang ini adalah :
nama lain | asal bahasa | arti |
---|---|---|
天廚三 / Tiānchúsān | China | bintang ketiga pada rasi Dapur di Langit[7] |
Selain rasi Draco, bintang ini juga merupakan anggota dari berbagai rasi atau asterisma berikut :
nama rasi / asterisma | asal | arti | anggota lainnya |
---|---|---|---|
天廚 / Tiānchú | China | Dapur di Langit | σ Dra, δ Dra, ρ Dra, 64 Dra, π Dra |
Al Tāis[8] | Arab | kambing | δ Dra, ρ Dra, π Dra |
Referensi
- ^ a b c d "* eps Dra". SIMBAD. Centre de données astronomiques de Strasbourg. Diakses tanggal 2010-12-18.
- ^ a b c d e van Leeuwen, F (November 2007). "Hipparcos, the New Reduction". Astronomy and Astrophysics. Centre de Données astronomiques de Strasbourg. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Diakses tanggal 2010-12-18.
- ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV data. SIMBAD. Bibcode:1986EgUBV........0M.
- ^ a b c d Mallik, Sushma V.; Parthasarathy, M.; Pati, A. K. (October 2003). "Li abundances and velocities in F and G stars". VizieR. Centre de Données astronomiques de Strasbourg. Diakses tanggal 2010-12-18.
- ^ Mallik, Sushma V.; Parthasarathy, M.; Pati, A. K. (October 2003). "Lithium and rotation in F and G dwarfs and subgiants". Astronomy and Astrophysics. 409 (1): 251–261. Bibcode:2003A&A...409..251M. doi:10.1051/0004-6361:20031084. Diakses tanggal 2010-12-18.
- ^ Soubiran, C.; Bienaymé, O.; Mishenina, T. V.; Kovtyukh, V. V. (2008). "Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants" (PDF). Astronomy and Astrophysics. 480 (1): 91–101. arXiv:0712.1370
. Bibcode:2008A&A...480...91S. doi:10.1051/0004-6361:20078788. Diakses tanggal 2010-12-18.
- ^ salah satu rasi bintang menurut bangsa Cina
- ^ http://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Draco*.html