TOI-178:修订间差异
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'''TOI-178'''是在[[玉夫座]]這個星座中的一個[[行星系]]<ref name="Roman1987">{{Cite journal|last=Roman|first=Nancy G.|year=1987|title=Identification of a Constellation From a Position|url=http://vizier.u-strasbg.fr/vizier/VizieR/constellations.htx|journal=Publications of the Astronomical Society of the Pacific|volume=99|issue=617|page=695–699|bibcode=1987PASP...99..695R|doi=10.1086/132034}}. [http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5e1c7bb21397f&-out.add=.&-source=VI/42/out&-c=005.7476%20-31.1454,eq=B1875,rs=2 Requête spécifique à TOI-178] sur [[VizieR]].</ref>,在一系列[[軌道共振|拉普拉斯共振]]中至少有五顆行星,而且還可能有第六顆。這是在行星系統中發現最長的共振鏈之一。這個系統的行星,在密度上也有不尋常的變化<ref name=":0">{{Cite web|last=Plait|first=Phil|date=2021-01-25|title=A six-planet system dances in time to the tune of gravity|url=https://www.syfy.com/syfywire/a-six-planet-system-dances-in-time-to-the-tune-of-gravity|access-date=2021-01-27|website=SYFY WIRE|language=en}}</ref><ref name=":2">{{Cite web|title=Nearby Orange Dwarf Hosts Unique System of Six Planets {{!}} Astronomy {{!}} Sci-News.com|url=http://www.sci-news.com/astronomy/orange-dwarf-toi-178-system-six-planets-09284.html|access-date=2021-01-27|website=Breaking Science News {{!}} Sci-News.com|language=en-US}}</ref><ref name=":1">{{Cite journal| last=Leleu | first=A. | last2=Alibert | first2=Y. | last3=Hara | first3=N. C. | last4=Hooton | first4=M. J. | last5=Wilson | first5=T. G. | last6=Robutel | first6=P. | last7=Delisle | first7=J. -B. | last8=Laskar | first8=J. | last9=Hoyer | first9=S. | last10=Lovis | first10=C. | last11=Bryant | first11=E. M. | last12=Ducrot | first12=E. | last13=Cabrera | first13=J. | last14=Delrez | first14=L. | last15=Acton | first15=J. S. | last16=Adibekyan | first16=V. | last17=Allart | first17=R. | last18=Prieto | first18=Allende | last19=Alonso | first19=R. | last20=Alves | first20=D. | last21=Anderson | first21=D. R. | last22=Angerhausen | first22=D. | last23=Escudé | first23=Anglada | last24=Asquier | first24=J. | last25=Barrado | first25=D. | last26=Barros | first26=S. C. C. | last27=Baumjohann | first27=W. | last28=Bayliss | first28=D. | last29=Beck | first29=M. | last30=Beck | first30=T. | last31=Bekkelien | first31=A. | last32=Benz | first32=W. | last33=Billot | first33=N. | last34=Bonfanti | first34=A. | last35=Bonfils | first35=X. | last36=Bouchy | first36=F. | last37=Bourrier | first37=V. | last38=Boué | first38=G. | last39=Brandeker | first39=A. | last40=Broeg | first40=C. | last41=Buder | first41=M. | last42=Burdanov | first42=A. | last43=Burleigh | first43=M. R. | last44=Bárczy | first44=T. | last45=Cameron | first45=A. C. | last46=Chamberlain | first46=S. | last47=Charnoz | first47=S. | last48=Cooke | first48=B. F. | last49=Damme | first49=Corral Van | last50=Correia | first50=A. C. M. | last51=Cristiani | first51=S. | last52=Damasso | first52=M. | last53=Davies | first53=M. B. | last54=Deleuil | first54=M. | last55=Demangeon | first55=O. D. S. | last56=Demory | first56=B. -O. | last57=Marcantonio | first57=Di | last58=Persio | first58=Di | last59=Dumusque | first59=X. | last60=Ehrenreich | first60=D. | last61=Erikson | first61=A. | last62=Figueira | first62=P. | last63=Fortier | first63=A. | last64=Fossati | first64=L. | last65=Fridlund | first65=M. | last66=Futyan | first66=D. | last67=Gandolfi | first67=D. | last68=Muñoz | first68=García | last69=Garcia | first69=L. J. | last70=Gill | first70=S. | last71=Gillen | first71=E. | last72=Gillon | first72=M. | last73=Goad | first73=M. R. | last74=Hernández | first74=González | last75=I. | first75=J. | last76=Guedel | first76=M. | last77=Günther | first77=M. N. | last78=Haldemann | first78=J. | last79=Henderson | first79=B. | last80=Heng | first80=K. | last81=Hogan | first81=A. E. | last82=Isaak | first82=K. | last83=Jehin | first83=E. | last84=Jenkins | first84=J. S. | last85=Jordán | first85=A. | last86=Kiss | first86=L. | last87=Kristiansen | first87=M. H. | last88=Lam | first88=K. | last89=Lavie | first89=B. | last90=Etangs | first90=Lecavelier des | last91=Lendl | first91=M. | last92=Lillo-Box | first92=J. | last93=Curto | first93=Lo | last94=Magrin | first94=D. | last95=Martins | first95=C. J. A. P. | last96=Maxted | first96=P. F. L. | last97=McCormac | first97=J. | last98=Mehner | first98=A. | last99=Micela | first99=G. | last100=Molaro | first100=P. | last101=Moyano | first101=M. | last102=Murray | first102=C. A. | last103=Nascimbeni | first103=V. | last104=Nunes | first104=N. J. | last105=Olofsson | first105=G. | last106=Osborn | first106=H. P. | last107=Oshagh | first107=M. | last108=Ottensamer | first108=R. | last109=Pagano | first109=I. | last110=Pallé | first110=E. | last111=Pedersen | first111=P. P. | last112=Pepe | first112=F. A. | last113=Persson | first113=C. M. | last114=Peter | first114=G. | last115=Piotto | first115=G. | last116=Polenta | first116=G. | last117=Pollacco | first117=D. | last118=Poretti | first118=E. | last119=Pozuelos | first119=F. J. | last120=Queloz | first120=D. | last121=Ragazzoni | first121=R. | last122=Rando | first122=N. | last123=Ratti | first123=F. | last124=Rauer | first124=H. | last125=Raynard | first125=L. | last126=Rebolo | first126=R. | last127=Reimers | first127=C. | last128=Ribas | first128=I. | last129=Santos | first129=N. C. | last130=Scandariato | first130=G. | last131=Schneider | first131=J. | last132=Sebastian | first132=D. | last133=Sestovic | first133=M. | last134=Simon | first134=A. E. | last135=Smith | first135=A. M. S. | last136=Sousa | first136=S. G. | last137=Sozzetti | first137=A. | last138=Steller | first138=M. | last139=Mascareño | first139=Suárez | last140=Szabó | first140=Gy. M. | last141=Ségransan | first141=D. | last142=Thomas | first142=N. | last143=Thompson | first143=S. | last144=Tilbrook | first144=R. H. | last145=Triaud | first145=A. | last146=Turner | first146=O. | last147=Udry | first147=S. | last148=Grootel | first148=Van | last149=Venus | first149=H. | last150=Verrecchia | first150=F. | last151=Vines | first151=J. I. | last152=Walton | first152=N. A. | last153=West | first153=R. G. | last154=Wheatley | first154=P. J. | last155=Wolter | first155=D. | last156=Osorio | first156=Zapatero | last157=R. | first157=M. | display-authors=20 |date=2021-01-20|title=Six transiting planets and a chain of Laplace resonances in TOI-178|journal=Astronomy & Astrophysics|language=en|arxiv=2101.09260|doi=10.1051/0004-6361/202039767|issn=0004-6361|s2cid=231693292 }}</ref>。 |
'''TOI-178'''是在[[玉夫座]]這個星座中的一個[[行星系]]<ref name="Roman1987">{{Cite journal|last=Roman|first=Nancy G.|year=1987|title=Identification of a Constellation From a Position|url=http://vizier.u-strasbg.fr/vizier/VizieR/constellations.htx|journal=Publications of the Astronomical Society of the Pacific|volume=99|issue=617|page=695–699|bibcode=1987PASP...99..695R|doi=10.1086/132034|access-date=2021-03-06|archive-date=2019-07-17|archive-url=https://web.archive.org/web/20190717180728/http://vizier.u-strasbg.fr/vizier/VizieR/constellations.htx}}. [http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5e1c7bb21397f&-out.add=.&-source=VI/42/out&-c=005.7476%20-31.1454,eq=B1875,rs=2 Requête spécifique à TOI-178] sur [[VizieR]].</ref>,在一系列[[軌道共振|拉普拉斯共振]]中至少有五顆行星,而且還可能有第六顆。這是在行星系統中發現最長的共振鏈之一。這個系統的行星,在密度上也有不尋常的變化<ref name=":0">{{Cite web|last=Plait|first=Phil|date=2021-01-25|title=A six-planet system dances in time to the tune of gravity|url=https://www.syfy.com/syfywire/a-six-planet-system-dances-in-time-to-the-tune-of-gravity|access-date=2021-01-27|website=SYFY WIRE|language=en|archive-date=2021-05-31|archive-url=https://web.archive.org/web/20210531124748/https://www.syfy.com/syfywire/a-six-planet-system-dances-in-time-to-the-tune-of-gravity}}</ref><ref name=":2">{{Cite web|title=Nearby Orange Dwarf Hosts Unique System of Six Planets {{!}} Astronomy {{!}} Sci-News.com|url=http://www.sci-news.com/astronomy/orange-dwarf-toi-178-system-six-planets-09284.html|access-date=2021-01-27|website=Breaking Science News {{!}} Sci-News.com|language=en-US|archive-date=2021-02-05|archive-url=https://web.archive.org/web/20210205011348/http://www.sci-news.com/astronomy/orange-dwarf-toi-178-system-six-planets-09284.html}}</ref><ref name=":1">{{Cite journal| last=Leleu | first=A. | last2=Alibert | first2=Y. | last3=Hara | first3=N. C. | last4=Hooton | first4=M. J. | last5=Wilson | first5=T. G. | last6=Robutel | first6=P. | last7=Delisle | first7=J. -B. | last8=Laskar | first8=J. | last9=Hoyer | first9=S. | last10=Lovis | first10=C. | last11=Bryant | first11=E. M. | last12=Ducrot | first12=E. | last13=Cabrera | first13=J. | last14=Delrez | first14=L. | last15=Acton | first15=J. S. | last16=Adibekyan | first16=V. | last17=Allart | first17=R. | last18=Prieto | first18=Allende | last19=Alonso | first19=R. | last20=Alves | first20=D. | last21=Anderson | first21=D. R. | last22=Angerhausen | first22=D. | last23=Escudé | first23=Anglada | last24=Asquier | first24=J. | last25=Barrado | first25=D. | last26=Barros | first26=S. C. C. | last27=Baumjohann | first27=W. | last28=Bayliss | first28=D. | last29=Beck | first29=M. | last30=Beck | first30=T. | last31=Bekkelien | first31=A. | last32=Benz | first32=W. | last33=Billot | first33=N. | last34=Bonfanti | first34=A. | last35=Bonfils | first35=X. | last36=Bouchy | first36=F. | last37=Bourrier | first37=V. | last38=Boué | first38=G. | last39=Brandeker | first39=A. | last40=Broeg | first40=C. | last41=Buder | first41=M. | last42=Burdanov | first42=A. | last43=Burleigh | first43=M. R. | last44=Bárczy | first44=T. | last45=Cameron | first45=A. C. | last46=Chamberlain | first46=S. | last47=Charnoz | first47=S. | last48=Cooke | first48=B. F. | last49=Damme | first49=Corral Van | last50=Correia | first50=A. C. M. | last51=Cristiani | first51=S. | last52=Damasso | first52=M. | last53=Davies | first53=M. B. | last54=Deleuil | first54=M. | last55=Demangeon | first55=O. D. S. | last56=Demory | first56=B. -O. | last57=Marcantonio | first57=Di | last58=Persio | first58=Di | last59=Dumusque | first59=X. | last60=Ehrenreich | first60=D. | last61=Erikson | first61=A. | last62=Figueira | first62=P. | last63=Fortier | first63=A. | last64=Fossati | first64=L. | last65=Fridlund | first65=M. | last66=Futyan | first66=D. | last67=Gandolfi | first67=D. | last68=Muñoz | first68=García | last69=Garcia | first69=L. J. | last70=Gill | first70=S. | last71=Gillen | first71=E. | last72=Gillon | first72=M. | last73=Goad | first73=M. R. | last74=Hernández | first74=González | last75=I. | first75=J. | last76=Guedel | first76=M. | last77=Günther | first77=M. N. | last78=Haldemann | first78=J. | last79=Henderson | first79=B. | last80=Heng | first80=K. | last81=Hogan | first81=A. E. | last82=Isaak | first82=K. | last83=Jehin | first83=E. | last84=Jenkins | first84=J. S. | last85=Jordán | first85=A. | last86=Kiss | first86=L. | last87=Kristiansen | first87=M. H. | last88=Lam | first88=K. | last89=Lavie | first89=B. | last90=Etangs | first90=Lecavelier des | last91=Lendl | first91=M. | last92=Lillo-Box | first92=J. | last93=Curto | first93=Lo | last94=Magrin | first94=D. | last95=Martins | first95=C. J. A. P. | last96=Maxted | first96=P. F. L. | last97=McCormac | first97=J. | last98=Mehner | first98=A. | last99=Micela | first99=G. | last100=Molaro | first100=P. | last101=Moyano | first101=M. | last102=Murray | first102=C. A. | last103=Nascimbeni | first103=V. | last104=Nunes | first104=N. J. | last105=Olofsson | first105=G. | last106=Osborn | first106=H. P. | last107=Oshagh | first107=M. | last108=Ottensamer | first108=R. | last109=Pagano | first109=I. | last110=Pallé | first110=E. | last111=Pedersen | first111=P. P. | last112=Pepe | first112=F. A. | last113=Persson | first113=C. M. | last114=Peter | first114=G. | last115=Piotto | first115=G. | last116=Polenta | first116=G. | last117=Pollacco | first117=D. | last118=Poretti | first118=E. | last119=Pozuelos | first119=F. J. | last120=Queloz | first120=D. | last121=Ragazzoni | first121=R. | last122=Rando | first122=N. | last123=Ratti | first123=F. | last124=Rauer | first124=H. | last125=Raynard | first125=L. | last126=Rebolo | first126=R. | last127=Reimers | first127=C. | last128=Ribas | first128=I. | last129=Santos | first129=N. C. | last130=Scandariato | first130=G. | last131=Schneider | first131=J. | last132=Sebastian | first132=D. | last133=Sestovic | first133=M. | last134=Simon | first134=A. E. | last135=Smith | first135=A. M. S. | last136=Sousa | first136=S. G. | last137=Sozzetti | first137=A. | last138=Steller | first138=M. | last139=Mascareño | first139=Suárez | last140=Szabó | first140=Gy. M. | last141=Ségransan | first141=D. | last142=Thomas | first142=N. | last143=Thompson | first143=S. | last144=Tilbrook | first144=R. H. | last145=Triaud | first145=A. | last146=Turner | first146=O. | last147=Udry | first147=S. | last148=Grootel | first148=Van | last149=Venus | first149=H. | last150=Verrecchia | first150=F. | last151=Vines | first151=J. I. | last152=Walton | first152=N. A. | last153=West | first153=R. G. | last154=Wheatley | first154=P. J. | last155=Wolter | first155=D. | last156=Osorio | first156=Zapatero | last157=R. | first157=M. | display-authors=20 |date=2021-01-20|title=Six transiting planets and a chain of Laplace resonances in TOI-178|journal=Astronomy & Astrophysics|language=en|arxiv=2101.09260|doi=10.1051/0004-6361/202039767|issn=0004-6361|s2cid=231693292 }}</ref>。 |
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這個系統距離地球約205[[光年]],距離如此接近,意味著這一類的行星系統可能較為常見<ref name=":2" /><ref name=":0" />。這顆名為TOI-178a的恆星亮度有助於後續的觀測,這使它成為一個理想的系統。在這個系統中,我們可以擴展對行星形成和演化的理解<ref name=":1" />。 |
這個系統距離地球約205[[光年]],距離如此接近,意味著這一類的行星系統可能較為常見<ref name=":2" /><ref name=":0" />。這顆名為TOI-178a的恆星亮度有助於後續的觀測,這使它成為一個理想的系統。在這個系統中,我們可以擴展對行星形成和演化的理解<ref name=":1" />。 |
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除此之外,行星b的軌道也很接近它共振鏈的一部分。在一個週期約比1.95天稍長的軌道上,它將與行星c形成一個3:5的共振;與其他五顆行星同一個共轉參考系中。有可能整個系統最初形成於一條長長的共振鏈中,但後來最裡面的行星可能被潮汐相互作用從中拉出<ref name=":1" /> |
除此之外,行星b的軌道也很接近它共振鏈的一部分。在一個週期約比1.95天稍長的軌道上,它將與行星c形成一個3:5的共振;與其他五顆行星同一個共轉參考系中。有可能整個系統最初形成於一條長長的共振鏈中,但後來最裡面的行星可能被潮汐相互作用從中拉出<ref name=":1" /> |
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| radius_earth = {{val|1.669|0.114|0.099}} |
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{{reflist}} |
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{{2021 |
{{2021年太空活動}} |
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{{系外行星}} |
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{{Stars of Sculptor|state=collapsed}} |
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{{Sky|00|29|12.30|-|30|27|13.46|204}} |
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<!--- Categories ---> |
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[[Category:玉夫座]] |
[[Category:玉夫座]] |
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[[Category: |
[[Category:K型主序星]] |
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[[Category:TESS Objects of Interest|178, TOI]] |
[[Category:TESS Objects of Interest|178, TOI]] |
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[[Category:2MASS天體|J00291228-3027133]] |
[[Category:2MASS天體|J00291228-3027133]] |
2024年6月25日 (二) 11:26的最新版本
觀測資料 曆元 J2000 | |
---|---|
星座 | 玉夫座 |
星官 | |
赤經 | 00h 29m 12.30s[1] |
赤緯 | −30° 27′ 13.46″[1] |
視星等(V) | 11.95[1] |
特性 | |
演化阶段 | 主序星 |
光谱分类 | K[1] |
天体测定 | |
徑向速度 (Rv) | ±0.5 57.4[1] km/s |
自行 (μ) | 赤经:±0.07 149.95[1] mas/yr 赤纬:±0.04 −87.25[1] mas/yr |
视差 (π) | 15.92 ± 0.05[1] mas |
距离 | 204.9 ± 0.6 ly (62.8 ± 0.2 pc) |
詳細資料 | |
質量 | +0.027 −0.029 0.650[1] M☉ |
半徑 | ±0.011 0.651[1] R☉ |
表面重力 (log g) | ±0.15 4.45[1] |
亮度 (bolometric) | ±0.010 0.132[1] L☉ |
溫度 | ±70 4316[1] K |
金属量 [Fe/H] | ±0.05 −0.23[1] dex |
自轉速度 (v sin i) | ±0.3 1.5[1] km/s |
其他命名 | |
2MASS J00291228-3027133、Gaia DR2 2318295979126499200、TIC 251848941、TYC 6991-00475-1
| |
參考資料庫 | |
SIMBAD | 资料 |
TOI-178是在玉夫座這個星座中的一個行星系[2],在一系列拉普拉斯共振中至少有五顆行星,而且還可能有第六顆。這是在行星系統中發現最長的共振鏈之一。這個系統的行星,在密度上也有不尋常的變化[3][4][1]。
這個系統距離地球約205光年,距離如此接近,意味著這一類的行星系統可能較為常見[4][3]。這顆名為TOI-178a的恆星亮度有助於後續的觀測,這使它成為一個理想的系統。在這個系統中,我們可以擴展對行星形成和演化的理解[1]。
五個不同的行星搜索專案提供的數據證實了這個行星系統。在凌日系外行星巡天衛星(TESS,Transiting Exoplanet Survey Satellite)提供了令人感興趣,具有共振鏈系統的初步線索之後,系外行星特性探測衛星(CHEOPS)、ESPRESSO、次世代凌星巡天( NGTS,Next-Generation Transit Survey)、和SPECULOOS都提供了確認發現和改進量測的額外觀測。在未來幾年中,對各種行星凌日過程中凌日時間變化的觀測,預計在數分鐘至數十分鐘之間,將有助於卻行星質量,並揭示各種軌道的扁率[1]。
軌道的共振
[编辑]根據IAU的系外行星命名慣例,這六顆行星命名為TOI-178b到TOI-178g,其外面的五顆行星被鎖定在拉普拉斯共振的鏈條中。它們繞行母恆星的軌道週期(以天為單位)是b=1.91、c=3.24、d=6.56、e=9.96、f=15.23、和g=20.71。這雖然不是一個完美的整數比,但存在一個參考系,它每天大約旋轉1.37°,行星連續的合形成了一個重複的模式[1]。對於在這個參考系內的觀測者而言,行星c到g形成了一個共振鏈,可以用週期比表示為 2:4:6:9:12,或是用軌道比表示為18:9:6:4:3。這意味著行星c每轉18圈,行星d就完成9圈、行星e轉6圈,行星f轉4圈,行星g轉3圈。
除此之外,行星b的軌道也很接近它共振鏈的一部分。在一個週期約比1.95天稍長的軌道上,它將與行星c形成一個3:5的共振;與其他五顆行星同一個共轉參考系中。有可能整個系統最初形成於一條長長的共振鏈中,但後來最裡面的行星可能被潮汐相互作用從中拉出[1]
成員 (依恆星距離) |
质量 | 半長軸 (AU) |
轨道周期 (天) |
離心率 | 傾角 | 半径 |
---|---|---|---|---|---|---|
b | +0.39 −0.44 1.50M⊕ |
07±0.00078 0.026 | 558±0.000018 1.914 | — | +0.8 −1.3 88.8° |
+0.073 −0.070 1.152R⊕ |
c | +0.55 −0.68 4.77M⊕ |
±0.0011 0.0370 | 450+0.000020 −0.000019 3.238 |
— | +1.1 −1.6 88.4° |
+0.114 −0.099 1.669R⊕ |
d | +0.80 −1.03 3.01M⊕ |
±0.0018 0.0592 | 700±0.000016 6.557 | — | +0.20 −0.18 88.58° |
+0.075 −0.078 2.572R⊕ |
e | +1.25 −0.94 3.86M⊕ |
+0.0023 −0.0024 0.0783 |
881±0.000042 9.961 | — | +0.16 −0.13 88.71° |
+0.088 −0.090 2.207R⊕ |
f | +1.67 −1.52 7.72M⊕ |
±0.0031 0.1039 | 915+0.000115 −0.000095 15.231 |
— | +0.071 −0.069 88.723° |
+0.108 −0.110 2.287R⊕ |
g | +1.31 −1.62 3.94M⊕ |
+0.0038 −0.0039 0.1275 |
50+0.00014 −0.00011 20.709 |
— | +0.045 −0.047 88.823° |
+0.14 −0.13 2.87R⊕ |
相關條目
[编辑]參考資料
[编辑]- ^ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 Leleu, A.; Alibert, Y.; Hara, N. C.; Hooton, M. J.; Wilson, T. G.; Robutel, P.; Delisle, J. -B.; Laskar, J.; Hoyer, S.; Lovis, C.; Bryant, E. M.; Ducrot, E.; Cabrera, J.; Delrez, L.; Acton, J. S.; Adibekyan, V.; Allart, R.; Prieto, Allende; Alonso, R.; Alves, D.; et al. Six transiting planets and a chain of Laplace resonances in TOI-178. Astronomy & Astrophysics. 2021-01-20. ISSN 0004-6361. S2CID 231693292. arXiv:2101.09260 . doi:10.1051/0004-6361/202039767 (英语).
- ^ Roman, Nancy G. Identification of a Constellation From a Position. Publications of the Astronomical Society of the Pacific. 1987, 99 (617): 695–699 [2021-03-06]. Bibcode:1987PASP...99..695R. doi:10.1086/132034. (原始内容存档于2019-07-17).. Requête spécifique à TOI-178 sur VizieR.
- ^ 3.0 3.1 Plait, Phil. A six-planet system dances in time to the tune of gravity. SYFY WIRE. 2021-01-25 [2021-01-27]. (原始内容存档于2021-05-31) (英语).
- ^ 4.0 4.1 Nearby Orange Dwarf Hosts Unique System of Six Planets | Astronomy | Sci-News.com. Breaking Science News | Sci-News.com. [2021-01-27]. (原始内容存档于2021-02-05) (美国英语).