How Astronomers measure Distance in Space? | Episode 1 | Visaipalagai

How to measure distance in Space? Stellar parallax the difference in direction of a celestial object as seen by an observer from two widely separated points. The measurement of parallax is used directly to find the distance of the body from the Earth (geocentric parallax) and from the Sun (heliocentric parallax). The two positions of the observer and the position of the object form a triangle; if the base line between the two observing points is known and the direction of the object as seen from each has been measured, the apex angle (the parallax) and the distance of the object from the observer can be found simply.
Reference links:
1. astro.unl.edu/naap/hr/hr_back...
2. www.esa.int/ESA_Multimedia/Im...
3. physics.stackexchange.com/que...
4. • Stellar spectra
5. • Hubble's law
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[@rajarajan75]

உலக தரம் வாய்ந்த வீடியோ பதிவு..... அதுவும் தாய் மொழியில் பார்ப்பது எளிதாக புரிகிறது.. ஆழ்ந்த சிந்தனையை தம் தாய் மொழியிலேயே அனுபவைப்பது vera level feel.... science lovers ku andha feeling purium...🤩🤩❤️

[@jaikrishnan2988]

raja rajan yes sago

[@arasump6556]

👍

[@sankarkrishnaswamy2176]

Really👍👍👍

[@adithya8650]

Yes

[@jayamboobathi4153]

விண்வெளி காதலன் யாரவது இருக்கீங்களா ?

[@spideydhivya7620]

Me✋

[@karthisankar8007]

🤚

[@gmohanrajg]

ஒரு சிலர் தினமும் வீடியோ போடுறாங்க...ஆனால் ஒரு பயனும் இல்ல...ஆனால் நம் ரஞ்சித் ஒரு வீடியோ போட்டாலும் ஊரையே கலக்குராரு.... அவருடைய கடின உழைப்புக்கு நான் தலை வணங்குகிறேன்....

[@Visaipalagai]

நன்றி

[@abrar2926]

விண்வெளி தான் அனைத்திற்கும் ஆரம்பம்
Any Univers Lover 🥰😍🤩😘

[@manikandanalagesan8640]

ME :புரியிது ஆனா 🙄🙄
inner ME; அட நாலுதடவ பாத்தா புரியும் பா😇😇😇

[@dineshkumarelumalai3219]

You deserve millions of subscribers... but, as usual in our country, No one will realize the best things soon. Please never stop this superb contribution to people like us...

[@jeevaraj1195]

Even trillion

[@ViyanUlagam]

Agreed nanba 👍🏼

[@varatharajaperumal7909]

@@jeevaraj1195 but there are only 8 billion people in the world bro

[@jeevaraj1195]

@@varatharajaperumal7909 bro ethalam nama excitement la anba solarathu aaraya kudathu anubavikanum

[@varatharajaperumal7909]

Ok bro 😅

[@adhithasimhanraghavan7516]

First guy on Tamil UA-cam to use the terminology "Parsec". It's the rare unit year of light year, which only few people know. Great video Ranjith!. Remember reading this concept in Universe in a nutshell.

[@Pradeepkumar-id3bw]

11th std padicha ellarukkum theriyum

[@adhithasimhanraghavan7516]

@@Pradeepkumar-id3bw See 11th std la electron microscope nu oru topic varum..adhu padishta quantum thermodynamics of electron theriyum nu arthama brother? What has been taught in schools is very fundamental. Don't jump into conclusions too soon.

[@user-rh8om8dk1e]

@@adhithasimhanraghavan7516 👍👍

[@rajansgs4110]

I never skipped advertisement in your channel, because l realised your hard work, dedication and passion...

[@nivashinimack2401]

Who are all like to star gazing regularly !? 😍🔭🌃
Daily I starting star gazing and end up with how wonder the universe is 😌❤️

[@vidhyapathia6343]

I feel the same...🌠

[@thiruselvammalarvizhi5429]

Especially me and my friend when talk about stars or any space related contents we just refuse to move on, because we are astrophile (space lover) . I think you too like us......

[@nivashinimack2401]

@@thiruselvammalarvizhi5429 ☺️ Hi-Fi 🙌

[@nivashinimack2401]

@@dineshkhanna8346 நட்சத்திர பார்வை bro 😅

[@aakaasha6123]

I love to do so. But I sleep regularly at 8:00 pm. So I can't unless I use apps like skyview.

[@vijayakumar261]

We honour you work na. 🤗🌎

[@anbarasana5661]

Finally the king is back...💚

[@sathish5680]

வாழ்வதற்கு ஒரு அர்த்தம் உண்டு என்பத உணர்த்திட்ட தல

[@manjumanju-ym4jq]

Unga video mattum skip panna mudiyala 👍 அற்புதமான விளக்கம்

[@sainikpraveen5293]

I could see the hardwork.. vazhtukal 🙌🏾

[@gmohanrajg]

A minute ago I thought about u as common man...But u are my Super Hero...What an intelligent...What a hard work...No words to say...Hats off to u...

[@kanagarajraji]

Bro unga videokaga marana waitng....Thayavu senji innum niraya video podunga in niraya topics. Romba intrestinga solringa..super bro....

[@kannanramachandran8778]

We belong to space, we are space. Good work brother keep going.

[@vidhyapathia6343]

I'm also committed with universe bro💜🌠

[@dharsen91]

Vinveli kadhal. Nanum kadhalikiren antha vinveliyai. Mikavum arumayana thalaippu. Ungal tamiluku nan adimai. Enaku neraya karpanaigal odikite irukum. Antha karpanai ellam unga video pakurathula irunthu innum virivaikite poguthu. Nenga solurathula avlo thelivana arthangal iruku. Mathavangaluku ithu kandipa purinje aaganum nu nenga edukura efforts enala unara mudiyuthu. Ungala pathu enakum enaku therinjatha Mathavangaluku solanum nu aarvam athigama aaguthu. Athe madiri nan therinjukitathu elam romba kammi num thonuthu. Mikka nandri intha tharavuku. Valga valamudan.

[@gokulakrishna5760]

Ranjith THE LEGEND Kumar 👑 🔥💯

[@Ganeshkumar-on3cm]

Introduction awesome thalaiva ur doing great job thalaiva 👍

[@vijaym2990]

Oru flow a pogum pothu TV serial mathiri "Thodarum" pottingale? I'm waiting. Evlo technicala irunthalum Ithavida yaaralayum swarasyama solla mudiyathu.

[@gmohanrajg]

U not making a video...U are making scientists...Tamil Scientists...

[@thepulikesi]

U posted video as u said.. Grt

[@suriyanarayanan1606]

Proud to be the viewer of Best Science Channel in Tamil. I appreciate your hard work.

[@jayammicky]

சிம்பிள் ஆனால், பவர்ஃபுல்.! அற்புதமான காணொளி, பாராட்டுகள்..

[@vimal8121989]

Very impressed. You always maintains your standard bro 👌👌👏👏👏

[@aval_kavithai]

Ranjith ARMY... Neenga school teacher ah polam. Neraya future scientist ah create pannalam

[@jagadeeshwaranv32]

Intha mari mesmerizing-a video podreenga but intha mari video tha views poga matikuthu😭 don't leave ur hope Ranjith bro

[@kirankarthick4956]

Super anna how to calculate earth tilt pls tell me

[@rbaskaran1218]

Va thala! Va thala! Va thala!

[@sivakumars5405]

Bro, hitting like button while watching...

[@karthickmpg6476]

விண்வெளி காதல் title amazing 🤩 bro

[@elangoelangovan1371]

👍👌👏வணக்கம்🙏ரஞ்சித்குமார் நண்பரே அருமை விளக்கம்👍👌👏

[@SathishKumar-ux1uh]

Vinveli kaathal. Me too bro 😍🔥. Inum neraya ethir parkiren. Your works are super. Hats off. ✌️

[@bigfist855]

Your Vedios are always well researched, delicious graphics, well explained and always amazing content

[@Visaipalagai]

Glad you like them!

[@arulpranavana7272]

Brilliant dear..
Ithuku pinadi irukura ungaloda work.... Extraordinary 👍👍👌👌👌

[@manishar9920]

Unga full video understand agalanalum something i learned new, really it's very interesting, keep doing ur work and ur editing is very nice

[@thiruselvammalarvizhi5429]

First of all nandri thala intha video upload pannathuku, neenga Vera sollitu seiyama uttuduviyo nu parthan, nalla vaela upload pannitnga.... Then na oru astrophile(space lover) , so I love this video very much😍😍😍😍 especially I love all space related videos in this channel.....in editing, explanation etc ellathilum massu bro intha channel.....I am eagerly waiting for next video...by the way next video eppo varum nu therinjikalama?😁😂enrendum #visaipalagai subscriber😍🙏

[@dkraja5419]

Most awaited video.
Thanks Bro

[@spgandhi1356]

You are doing great things that even make the non science people understand science easily and effectively...

[@vinojack6525]

சொல்வதற்கு வார்த்தைகள் இல்லை மிகவும் அழகான தமிழ்ப் பதிவு சகோ நன்றி...

[@jegan5369]

புதிய style . நன்றாக உள்ளது.

[@karikalan190ce]

மிகச் சிறப்பான பதிவு! இதற்கான உழைப்பும், நேரமும் எந்த அளவிற்குத் தேவைப்பட்டிருக்கும் என்பது படத்தொகுப்பு செய்பவர்களுக்கும், வரைகலை தெரிந்தவர்களுக்கும் புரிந்துகொள்ளக் கூடியதாக இருக்கும். மிகச் சிறப்பான சேவை சகோ. மிகச் சொற்பமான ஆங்கில வார்த்தைகளைப் பாவித்திருப்பது மிகவும் சிறப்பு. இக் காணொளியின் இணைப்பை, நான் பார்க்கின்ற அனைத்துக் காணெளிகளிலும் பின்னூட்டமாக கொடுக்கப் போகின்றேன். 'சிறந்த தமிழ் அறிவுச்சேவை - விசைப்பலகை' எனும் பெயரில். உங்கள் பணி இன்னும் மிகச் சிறப்பா அமைய வாழ்த்துக்கள். நன்றி!

[@prabhakaran9097]

Big effort 👌🔥

[@thakshana185]

I hit the like button for your hardwork . Keep rocking

[@user-vz8mg5tl7w]

I'm very much interested to know and understand about the mysteries of the universe.

[@hajimohamed2919]

Hi Ranjith, love from Bangalore.... you are creating high quality video with up skilled content...bravo 🤝

[@bharanidharan8606]

ANNA IM WAITING FOR THE NEXT LOVE OF SCIENCE 😍😍😍😍😍😍

[@MohanKumar-mn9oh]

Waiting next epi.

[@sumipavi7689]

No words.....excellent 👍👍👍👌👌👌👌👌

[@saroprabu]

மிகவும் பயனுள்ள அருமையான பதிவு உங்கள் வர்ணனையும் மிகவும் அருமை... வாழ்த்துக்கள் நண்பா...

[@freshvibes2944]

Ungaloda thiramai viyappaga irukku.
Vaalthukkal

[@SuperVITHURSHAN]

super bro for us it's very hard to imagine how much of hard work you put to made this video useful
my question is :
since starts are moving constantly , in nearby future will we be able to see those stars with naked eye ?

[@Visaipalagai]

Will explain in another video because it includes expansion of the universe

[@sagayaraja9722]

வேற லெவல் வெறித்தனம் bro video நான் மிகவும் ஆவலாய் உள்ளேன் அடுத்த பதிவிற்காய்

[@dparthibhan1]

This video and standard of explanation is on par with international science documentaries. Thanku ranjith. Eagerly waiting for series

[@KoreanremixStatues]

Please upload it soon...
Eagerly waiting for next episode...

[@techne6556]

Awesome hardwork brother ✨

[@solarajak6376]

Super bro put frequently many videos like this. I have learnt many things in this video.

[@gkarthikeyan25]

You are great...
I keep on watching your videos . Keep up...

[@vpjack25]

waited video ... hard work ... my dear student ... hats off u...

[@vijayabaskar417]

Hardwork never fails,
You are the Great..

[@mthn_mg]

Hatsoff bro... So much stuff...

[@shyam3645]

What an explanation seriously hatsoff anna love you 😻 now I understand how they found the star is this much light year from the earth 🥰

[@karikalam2214]

Nice work!! Keep it up!!don't compare other you tube channels!! We are the best🤗🤗🤗

[@astrocentric]

Lovely informatioms bro!

[@with_mettur]

Bro super video but full video. Based on formula so kojam confuse panra mathiri eruku .
But cleara eruku eruthalu..

[@natarasangunasekaran4137]

மிகவும் பயனுள்ளதாக இருந்தது
தாய் தமிழில் வழங்குவதற்கு கோடானுகோடி நன்றிங்க

[@kalaigopi3634]

Intha chanal oru arivu pokkisham😍👍👌😍

[@gokulrajmp07]

Ithu tua anna real visaipalagai....neenga intha mathiri galaxy videos tha yennaku rommaba pidikum anna

[@naveenraj2008eee]

Hi sir
Explained brilliantly..
Thanks...🙏👍😊

[@sakthisureshbabu9213]

This is one of your best videos. Great 👍

[@mathivanang1594]

Excellent video making skill and presentation skill..👌..keep on 😎

[@shasha-cf1nd]

Bro sema video
Unga video real va awesome
Neraya video podunga bro
Yepo than neega video poduvinga nu waiting pni tu irunthen ...👍👍👍👍

[@1618michael]

You have a sense of film making(documentary) , soothing music. Rich content. Great channel.

[@narayanamoorthym6235]

Super expline bro thanks for making a amazing vedio 🙏

[@kaliraj8729]

Your really a great scientist it's amazing

[@praveenraj5925]

Super2 thalaivaa..complicated maths eh clear ah graphical way le simple puriye vechitingge..hi d n r

[@ramkrishnan1972]

Really amazing work. Congrats

[@sureshse5930]

தெளிவான விளக்கம்

[@rebahathkhan5019]

Thought this would be boring but was very interesting, bro i learned this parallax method and weins displacement in 1st puc.

[@kishorekumar6976]

Aye thaliye valikkudu bro but super explanation

[@prakasht8450]

Song punch new and it is easy to understand.... Great effort bro 😃☺️👌👌

[@bharathtbpt-0316]

Semma bro

[@onetalkies9948]

Perfect explanation 👌👍

[@aravindhanramanathan2564]

Congratulations and thanks for your effort really awesome👏✊👍

[@adithya8650]

Science is lovable❤️❤️

[@ry2492]

Wow

[@jprajan6309]

Vera level quality and editing bro

[@ashley_sammit]

vera level video sagothararae. Very clear and we can see the hardwork and dedication of yours

[@trysomething2506]

Super bro..!keep give such videos like this...

[@Trancyrealm]

Beyond... Worth... Thanks...

[@sureshrajp7552]

Ellaraum adutha level mu kootitu poringa..... congrats ranjith.....,👏👏...keep going...

[@antonynixson6956]

சற்று கடினமான தொகுப்பு நன்றி தம்பி உங்கள் உழைப்பிற்கு.

[@Elumalai_007]

Amazing Graphics and animations !!! 🤩

[@navsribe]

Very good content with very good description 👌👍 keep rocking ranjith

[@gokulk9885]

I became your fan dude 🔥

[@hemachandrang6284]

English subtitles could take it to another level. Great video!!

[@iindharsam]

Semma super👌 vera level👏👏👏👏👏🙏

[@Sanjay-jn4eu]

Sema waiting for episode 2