chitr:Laser Towards Milky Ways Centre.jpg

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jaankaari
Čaaešaatina: Pozorováaní Mléačané dráaahy na observatořaai Paranal v srpnu 2010 pomocí laserové korekce.
Deutsch: Mitte August 2010 schoss der ESO-Fotobotschafter Yuri Beletsky dieses Foto des Paranal-Observatoriums der ESO. Eine Gruppe von Astronomen beobachtete das Zentrum der Milchstraßae unter Verwendung der Vorrichtung zur Erzeugung eines küaanstlichen Leitsterns mit dem Yepun-Teleskop, einem der vier Unit-Teleskope des Very Large Telescope (VLT).

Yepuns Laserstrahl durchquert den süaadlichen Himmel und erzeugt einen küaanstlichen Stern in 90 km Höahe in der Mesosphäare der Erde. Der Laser-Leitstern (LGS) ist ein Teil der adaptiven Optik des VLT und wird als Referenz zur Korrektur der durch die Atmosphäare verursachten Unschäarfe-Effekte auf Aufnahmen verwendet. Die Farbe des Lasers ist exakt abgestimmt, um eine Schicht von Natrium-Atomen anzuregen, die sich in einer der oberen Schichten der Atmosphäare befindet – die bekannte Farbe der Natrium-Lampen der Straßaenbeleuchtung läaasst sich in der Farbe des Lasers wiedererkennen. Vermutlich ist diese Schicht von Natrium-Atomen ein Üaaberrest von Meteoriten, die in die Erdatmosphäare eintreten. Wenn sie durch das Licht des Lasers angeregt werden, beginnen die Atome zu leuchten und bilden so einen kleinen hellen Fleck, der als küaanstlicher Referenzstern füaar die adaptive Optik benutzt werden kann. Mittels dieser Technik köaannen Astronomen schäaarfere Beobachtungsergebnisse erhalten. Beispielsweise köaannen Forscher bei der Beobachtung des Zentrums unserer Milchstraßae besser den galaktischen Kern üaaberwachen. In diesem verschluckt ein supermassereiches schwarzes Loch Gas und Staub, wäaahrend es von nahen Sternen umkreist wird.

Das Foto wurde mit einem Weitwinkelobjektiv aufgenommen und deckt mit etwa 180° beinahe den gesamten sichtbaren Himmel ab.
English: In mid-August 2010 ESO Photo Ambassador Yuri Beletsky snapped this photo at ESO's Paranal Observatory, Chile. A group of astronomers were observing the centre of the Milky Way using the laser guide star facility at Yepun, one of the four Unit Telescopes of the Very Large Telescope (VLT).

Yepun's laser beam crosses the southern sky and creates an artificial star at an altitude of 90 km high in the Earth's mesosphere. The Laser Guide Star (LGS) is part of the VLT's adaptive optics system and is used as a reference to correct the blurring effect of the atmosphere on images. The colour of the laser is precisely tuned to energise a layer of sodium atoms found in one of the upper layers of the atmosphere — one can recognise the familiar colour of sodium street lamps in the colour of the laser. This layer of sodium atoms is thought to be a leftover from meteorites entering the Earth's atmosphere. When excited by the light from the laser, the atoms start glowing, forming a small bright spot that can be used as an artificial reference star for the adaptive optics. Using this technique, astronomers can obtain sharper observations. For example, when looking towards the centre of our Milky Way, researchers can better monitor the galactic core, where a central supermassive black hole, surrounded by closely orbiting stars, is swallowing gas and dust.

Taken with a wide angle lens, this photo covers about 180° of the sky.
Españaol: A mediados de agosto de 2010 el Embajador Fotográafico de ESO, Yuri Beletsky, tomó esta foto en el Observatorio Paranal de ESO, Chile. Un grupo de astróaanomos observaban el centro de la Víaa Láactea usando el sistema de estrella guíaaa láaser en Yepun, uno de los cuatro telescopios del Very Large Telescope (VLT).


El rayo láaser de Yepun cruza el cielo del sur y crea una estrella artificial a una altitud de 90 km de altura en la mesosfera de la Tierra. La Estrella Guíaa Láaser (LGS) es parte del sistema de óaaptica adaptativa del VLT y se utiliza como referencia para corregir el efecto borroso de la atmóasfera en las imáaagenes. El color del láaser está sintonizada precisamente para energizar una capa de áaatomos de sodio que se encuentran en una de las capas superiores de la atmóasfera - uno puede reconocer el color familiar de las láaamparas de sodio de la calle en el color del láaser. Esta capa de áaatomos de sodio se piensa que es una reminiscencia de los meteoritos que entran en la atmóasfera de la Tierra. Cuando es excitado por la luz desde el láaser, los áaatomos comienzan a brillar intensamente, formando un pequeñaao punto brillante que se puede utilizar como una estrella de referencia artificial para la óaaptica adaptativa. Usando esta téaacnica, los astróaanomos pueden obtener observaciones máas agudas. Por ejemplo, cuando se mira hacia el centro de nuestra Víaa Láactea, los investigadores pueden controlar mejor el núacleo galáaactico, donde un agujero negro supermasivo en el centro, rodeado por las estrellas que orbitan cerca, está tragando gas y polvo.

Tomado con una lente gran angular, esta foto abarca aproximadamente 180 ° del cielo.
Françaais: Utilisation d'un laser pour observer en déatail le centre galactique.
Le laser provoque la formation d'une « éatoile artificielle » dans la méasosphèare, à 90 km d'altitude. Cette source de lumièaare est utiliséaae comme réaféarence pour compenser les turbulences atmosphéaariques. Le laser est réaaglé sur la fréaaquence d'excitation du sodium. Sa couleur jaune rappelle d'ailleurs celle des lampes à sodium utiliséaaes dans l'éaaclairage urbain. Cette couche de sodium dans la méasosphèare serait une trace laisséaae par les méatéaorites qui la traversent. Cette méathode permet d'éaatudier en déatail des déatails fins du ciel, tels que l'activité du trou noir se trouvant dans le centre galactique, objet de l'éaatude menéaae ici. Photo prise à la mi-aoûaat 2008 au VLT sur le Cerro Paranal, au Chili. La photo, prise avec un grand angle, couvre 180°.
Galego: Foto tomada a mediados de agosto de 2010 por Yri Beletsky nas instalacióaans de Yepun, unha das catro instalacióaans telescóaapicas do VLT (siglas inglesas de Telescopio Moi Grande) do ESO (siglas inglesas do gl:Observatorio Espacial Europeo) de Cerro Paranal (Chile). A foto está tomada cun grande angular, que cobre arredor de 180º da bóaaveda celeste. Nela pode verse o uso dun láaser para observar detalladamente o centro da nosa galaxia, a Víaa Láactea. O láaser provoca a creacióan dunha estrela artificial na mesosfera a 90 km de altitude, debido a que está sincronizado coa frecuencia de exticatióaan do sodio. Por iso, a súaaa cor amarela-laranxa lembra áas láaampadas de sodio usadas na iluminacióaan urbana. Suponse que esta capa de áaatomos de sodio son os restos dos meteoritos que entran na atmosfera terrestre. Cando se excitan pola luz do láaser, os áaatomos comezan a brillar formando un punto rechamante que pode usarse como unha estrela artificial de referencia para calibrar os sistemas óaapticos: usando este sitema, os astróaanomos poden obter observacióaans máais exactas. Por exemplo: cando se observa o centro da nosa galaxia, os investigadores poden controlar mellor o núacleo galáaactico, onde un burato negro central supermasivo rodeado de estrelas orbitando moi preto, absorbe gas e po.
Italiano: Il 6 agosto 2010, il Photo Ambassador dell'ESO, Yuri Beletsky, ha scattato questa fotografia all'Osservatorio astronomico del Paranal in Cile, dove un gruppo di astronomi stava osservando il centro della Via Lattea usando uno dei quattro telescopi ottici (chiamato "Yepun") del Very Large Telescope (VLT).
Il raggio laser di Yepun attraversa il cielo australe e crea una stella artificiale ad un'altitudine di 90 chilometri, all'altezza della mesosfera della Terra. Questa Laser Guide Star (LGS) è parte del sistema ottico adattivo del VLT ed è usata come riferimento per correggere l'effetto blur dell'atmosfera sulle immagini. Il colore del laser è calibrato precisamente per energizzare uno strato di atomi di sodio che si trova in uno degli strati superiori dell'atmosfera — si può riconoscere il familiare colore dei lampioni stradali, che usano lampade al sodio. Si pensa che questo strato di atomi di sodio sia un residuo lasciato da meteoriti penetrati nell'atmosfera terrestre. Quando eccitati dalla luce emessa dal laser, gli atomi iniziano a brillare, formando un piccolo punto luminoso che può essere usato come stella artificiale di riferimento dall'ottica adattiva. Usando questa tecnica, gli atronomi possono ottenere osservazioni più precise. Per esempio, quando si osserva il centro della Via Lattea, i ricercatori possono monitorare meglio il centro galattico, dove un buco nero supermassiccio, circondato a breve distanza da stelle orbitanti, ingoia gas e polveri.
Scattata con lenti panoramiche, questa fotografia copre il cielo a circa 180°.
Tiếang Việat: Chiếau tia laser hưaớang về tâam củaaa Ngâan Hà từ mộaat trạam thiêaan văan đaaơaan vị củaaa hệ thốaang thiêaan văan VLT.
Tüarkçae: 2010'un Ağaustos ayıaanda ESO Fotoğaraf Büayüakelçaisi Yuri Beletsky ESO'nun Paranal Göazlemevi'nde bu inanıaalmaz fotoğaarafı çaaekti. Bir grup göaakbilimci Yepun (Çaaok Büayüak Teleskop (VLT)'un döaart teleskobundan biri)'un lazer kıaalavuz öaazelliğaaini kullanarak Samanyolu'nun merkezini göaazlemledi.
Рaaуaaсaaсaaкaaиaaй: В аaaвaaгaaуaaсaaтaaе 2010 г. гaaрaaуaaпaaпaaа аaaсaaтaaрaaоaaнaaоaaмaaоaaв нaaаaaбaaлaaюaaдaaаaaлaaа цaaеaaнaaтaaр Мaaлaaеaaчaaнaaоaaгaaо Пaaуaaтaaи с иaaсaaпaaоaaлaaьaaзaaоaaвaaаaaнaaиaaеaaм лaaаaaзaaеaaрaaнaaоaaгaaо оaaбaaоaaрaaуaaдaaоaaвaaаaaнaaиaaя тaaеaaлaaеaaсaaкaaоaaпaaа Yepun (Вaaеaaнaaеaaрaaа нaaа яaaзaaыaaкaaе иaaнaaдaaеaaйaaцaaеaaв Мaaаaaпaaуaaчaaе), оaaдaaнaaоaaгaaо иaaз чaaеaaтaaыaaрaaеaaх тaaеaaлaaеaaсaaкaaоaaпaaоaaв Оaчaеaнaь Бaaоaaлaaьaaшaaоaaгaaо Тaеaлaеaсaкaоaпaа Еaaвaaрaaоaaпaaеaaйaaсaaкaaоaaй юaжaнaоaй оaaбaaсaaеaaрaaвaaаaaтaaоaaрaaиaaи (аaaнaaгaaл. ESO), Оaaбaaсaaеaaрaaвaaаaaтaaоaaрaaиaaя Пaaаaaрaaаaaнaaаaaл, Чaaиaaлaaи. Фaaоaaтaaо пaaоaaсaaлaaа ESO Юaaрaaиaaя Бaaеaaлaaеaaцaaкaaоaaгaaо.
Уaaкaaрaaаaaїaaнaaсaaьaaкaaа: В сaaеaaрaaпaaнaaі 2010 р. гaрaуaпaа аaaсaaтaaрaaоaaнaaоaaмaaіaaв сaaпaaоaaсaaтaaеaaрaaіaaгaaаaaлaaа цaaеaaнaaтaaр Чaaуaaмaaаaaцaaьaaкaaоaaгaaо Шaaлaaяaaхaaу з вaaиaaкaaоaaрaaиaaсaaтaaаaaнaaнaaяaaм лaaаaaзaaеaaрaaнaaоaaгaaо оaaбaaлaaаaaдaaнaaаaaнaaнaaя тaaеaaлaaеaaсaaкaaоaaпaaа Yepun (Вaaеaaнaaеaaрaaа мaaоaaвaaоaaю іaaнaaдaaіaaаaaнaaцaaіaaв Мaaаaaпaaуaaчaaе) (оaaдaaнaaоaaгaaо з чaaоaaтaaиaaрaaьaaоaaх тaaеaaлaaеaaсaaкaaоaaпaaіaaв Дaaуaaжaaе Вaaеaaлaaиaaкaaоaaгaaо Тaеaлaеaсaкaоaпaа Єaaвaaрaaоaaпaaеaaйaaсaaьaaкaaоaaї пaіaвaдaеaнaнaоaї оaaбaaсaaеaaрaaвaaаaaтaaоaaрaaіaaї (аaaнaaгaaл. ESO), Оaaбaaсaaеaaрaaвaaаaaтaaоaaрaaіaaя Пaaаaaрaaаaaнaaаaaл, Чaaиaaлaaі. Фaaоaaтaaо пaaоaaсaaлaaа ESO Юaaрaaіaaя Бaaіaaлaaеaaцaaьaaкaaоaaгaaо.
日aa本aa語: ヨaaーaaロaaッaaパaa南aa天aa天aa文aa台 (ESO) パaラaナaルa天a文a台a(aチaリa)aがa備aえaるa4基aのa巨a大a望a遠a鏡aのa一aつaイaェaプaンa望a遠a鏡aにaよaるa、aレaーaザaーaガaイaドaをa使a用aしaたa天aのa川a銀a河aのa中a心a部aのa観a測a。a2010年a8月a中a旬a、aESO のaフaォaトa・aアaンaバaサaダaーaでaあaるaユaーaリa・aベaレaツaキaーaのa撮a影a。
中a文a(a简a体a)a‎: 2010年a八a月a中a旬a,ESO摄a影a大a使aYuri Beletsky在aESO的a智a利帕aa瑞aa纳aa天aa文aa台拍a了a这a张a照a片a。a一a群a天a文a学a家a正a在a用aYepun的激aa光aa导aa引aa星设aa施aa观aa测aa银aa河aa中aa心aa,aYepun是a那a个甚aa大aa望aa远aa镜望a远a镜a中a四a个a单a元a望a远a镜a中a的a一a个a。

Yepus的a激a光a束a穿a越a南a部a的a天a空a,a在a海a拔a90千a米a的a地a球中aa间aa层造a了a一a个a人a工a星a。a激a光a导a引a星a是a甚a大a望a远a镜a的a适a应a性a光a学a系a统a的a一a部a分a,a它a作a为a一a个a参a考a点a可a以a用a来a纠a正a大a气a层a导a致a的a图a像a的a模a糊a。a那a束a激a光a的a颜a色a(a频a率a)a被a精a确a地a调a谐a用a来a激a发a上a层a大a气a中a的a一a个a钠a原a子a层a,a你a肯a定a能a认a出a这a束a激a光a的a颜a色a,a就a是a你a熟a悉a的a街a边a钠a灯a的a颜a色a。a这a层a钠a原a子a被a认a为a进a入a地a球a大a气a层a的a陨a石a的a残a留a物a。a当a这a些a钠a原a子a被a激a光a激a发a后a,a这a些a原a子a开a始a闪a烁a,a形a成a一a个a小a亮a点a可a以a被a适a应a性a光a学a设a备a用a作a一a个a人a工a参a考a星a。a使a用a这a种a技a术a,a天a文a学a家a可a以a获a取a更a清a晰a的a观a测a结a果a。a例a如a,a当a观a测a银a河a中a心a时a,a研a究a人a员a可a以a更a好a地a监a视a银a心a,a那a里a有a一a个a超a大a黑a洞a,a被a近a处a绕a它a旋a转a的a恒a星a包a围a着a,a吞a噬a着a气a体a和a星a际a尘a埃a。

使a用a一a个a广a角a镜a头a拍a摄a,a这a幅a照a片a得a以a覆a盖a180°a的a天a空a。
اaaلaaعaaرaaبaaيaaة: اaaطaaلaaاaaق لaaيaaزaaر فaaي مaaرaaصaaد بaaاaaرaaنaaاaaل - تaaشaaيaaلaaي - مaaوaaجaaه اaaلaaي طaaرaaيaaق دaaرaaب اaaلaaتaaبaaاaaنaaة.
فaaاaaرaaسaaی: اaaیaaن نaaگaaاaaرaaه رaaا اaaمaaبaaسaaدaaوaaر یaaوaaرaaی بaaلaaتaaسaaکaaی دaaر اaaوaaاaaسaaط اaaوaaت ۲aa۰aa۱aa۰ گaaرaaفaaتaaهaa‌aaاaaسaaت. گaaرaaوaaهaaی اaaز سaaتaaاaaرaaهa‌aشaنaاaسaاaنa، مaaرaaکaaز کaaهaaکaaشaaاaaن رaaاaaه شaaیaaرaaی رaaا تaaوaaسaaط سaaتaaاaaرaaه هaaدaaاaaیaaت لaaیaaزaaرaaی دaaر یaaپaaوaaن (یaaکaaی اaaز چaaهaaاaaر عaaدaaد اaaز بaaزaaرaaگaaتaaرaaیaaن تaaلaaسaaکaaوaaپaa‌aaهaaاaaی دaaنaaیaaا) رaaصaaد مaaیaa‌aaکaaرaaدaaنaaد. پaaرaaتaaوaaی لaaیaaزaaرaaی «aیaaپaaوaaنa» اaaز قaaسaaمaaت جaaنaaوaaبaaی آaaسaaمaaاaaن عaaبaaوaaر مaaیaa‌aaکaaنaaد و سaaتaaاaaرaaهa‌aاaی سaaاaaخaaتaaگaaی دaaر ۹aa۰ کaaیaaلaaوaaمaaتaaرaaی لaaاaaیaaه مaaزaaوaaسaaفaaر زaaمaaیaaن بaaه وaaجaaوaaد مaaیaa‌aaآaaوaaرaaد. رaaنaaگ لaaیaaزaaر بaaرaaاaaی اaaنaaرaaژaaی دaaاaaدaaن بaaه اaaتaaمaa‌aaهaaاaaی سaaدaaیaaم لaaاaaیaaه بaaاaaلaaاaaیaaی اaaتaaمaaسaaفaaر تaaنaaظaaیaaم شaaدaaه کaaه هaaمaaاaaن رaaنaaگ آaaشaaنaaاaaی لaaاaaمaaپaa‌aaهaaاaaی سaaدaaیaaم دaaر خaaیaaاaaبaaاaaنaa‌aaهaaا اaaسaaت. وaaقaaتaaی اaaیaaن اaaتaaمaa‌aaهaaا تaaوaaسaaط لaaیaaزaaر بaaرaaاaaنaaگaaیaaخaaتaaه مaیa‌aشaوaنaدa، شaaرaaوaaع بaaه تaaاaaبaaش مaaیaa‌aaکaaنaaنaaد و نaaقaaطaaهaaٔ نaaوaaرaaاaaنaaی کaaوaaچaaکaaی رaaا شaaکaaل مaaیaa‌aaدaaهaaنaaد کaaه مaaیaa‌aaتaaوaaاaaنaaد بaaه عaaنaaوaaاaaن یaaک سaaتaaاaaرaaه مaaرaaجaaع سaaاaaخaaتaaگaaی جaaهaaت اaaنaaطaaبaaاaaق نaaوaaرaaهaaا اaaسaaتaaفaaاaaدaaه شaaوaaد. بaaا اaaسaaتaaفaaاaaدaaه اaaز اaaیaaن شaaیaaوaaه فaaنaaاaaوaaرaaی سaaتaaاaaرaaهa‌aشaنaاaسaاaن مaaیaa‌aaتaaوaaاaaنaaنaaد بaaه رaaصaaدaaهaaاaaی دaaقaaیaaقaa‌aaتaaرaaی دaaسaaت یaaاaaبaaنaaد. بaaرaaاaaی مaaثaaاaaل وaaقaaتaaی بaaه سaaمaaت مaaرaaکaaز کaaهaaکaaشaaاaaن رaaاaaه شaaیaaرaaی نaaگaaاaaه اaaنaaدaaاaaخaaتaaه مaیa‌aشaaوaaدa، مaaحaaقaaقaaاaaن بaaهaaتaaر مaaیaa‌aaتaaوaaاaaنaaنaaد هaaسaaتaaه کaaهaaکaaشaaاaaن رaaا بaبaیaنaنaدa، مaaحaaلaaی کaaه یaaک سaaیaaاaaهaaچaaاaaلaaه فaaوaaق بaaزaaرaaگ تaaوaaسaaط سaaتaaاaaرaaهa‌aهaاaی کaaه دaaوaaر آaaن مaaیaa‌aaگaaرaaدaaنaaد اaaحaaاaaطaaه شaaدaaه و گaaاaaز و خaaاaaکaaسaaتaaر بaaه خaaوaaد جaaذaaب مaaیaa‌aaکaaنaaد.
dinaank
srot
This media was produced by the European Southern Observatory (ESO), under the identifier potw1036a

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information.

lekhak ESO/Yuri Beletsky (ybialets at eso.org)
anya sanskaranon

Derivative works of this file:

camera sthaan 24° 37′ 38″ S, 70° 24′ 15″ W yeh aur anya aaspaas ki chhaviyon yahaan par dekhein: open street maip - Google pruthvi info

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w:en:Creative Commons
एट्रीब्यूसन
This file is licensed under the Creative Commons Attribution 4.0 International license.
tum mukt ho:
  • saajha karein – rachana ko kaupi, vitrit aur sanchaarit karne ke liye
  • reemiks karne ke liye – kaam anukoolit karne ke liye
nimnalikhit kaaranon ke antargat:
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Assessment[sampaadan]

POTY
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Wikimedia CommonsWikipedia

This file was awarded first place in Picture of the Year 2010.
yeh vikimeediya kaumans par ek nirvaachit tasveer (Featured pictures) hai aur sarvottam chhaviyon mein se ek maani gayi hai.



yadi apaake paas bhi iske samaroop gunavata ka chitr hai jise upayukt kaupeeraait license ke antargat prakaashit kiya ja sakta hai, to sunishchit roop se ise upload karein, taig lagaayein aur naamaankit karein.


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Picture of the day This image was selected as a picture of the day for . It was captioned as follows:
English: In mid-August 2010 ESO Photo Ambassador Yuri Beletsky snapped this amazing photo at ESO's Paranal Observatory. A group of astronomers were observing the centre of the Milky Way using the laser guide star facility at Yepun, one of the four Unit Telescopes of the Very Large Telescope (VLT).
Annotations This image is annotated: View the annotations at Commons

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vartamaan 11:29, 8 April 2016 11:29, 8 अप्रैल 2016 के संस्करण का अंगूठाकार प्रारूप। 2,000 × 1,816 (2.04 MB) Jean-Fréadéaric Reverted to version as of 16:19, 21 September 2010 (UTC)
07:00, 8 April 2016 07:00, 8 अप्रैल 2016 के संस्करण का अंगूठाकार प्रारूप। 2,000 × 1,816 (2.08 MB) SteinsplitterBot Bot: Image rotated by 180°
16:19, 21 September 2010 16:19, 21 सितंबर 2010 के संस्करण का अंगूठाकार प्रारूप। 2,000 × 1,816 (2.04 MB) Lars Lindberg Christensen {{Information |Description={{en|1=In mid-August 2010 ESO Photo Ambassador Yuri Beletsky snapped this amazing photo at ESO's Paranal Observatory. A group of astronomers were observing the centre of the Milky Way using the laser guide star facility at Ye

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