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/...
2. www.esa.int/ES...
3. physics.stacke...
4. • Stellar spectra
5. • Hubble's law
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நன்றி

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First guy on Tamil KZbin 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.

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11th std padicha ellarukkum theriyum

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Me✋

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🤚

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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.

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[@Visaipalagai]

Glad you like them!

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வாழ்வதற்கு ஒரு அர்த்தம் உண்டு என்பத உணர்த்திட்ட தல

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Ranjith THE LEGEND Kumar 👑 🔥💯

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[@kirankarthick4956]

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I hit the like button for your hardwork . Keep rocking

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Waiting next epi.

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[@user-vz8mg5tl7w]

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

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

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

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

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புதிய style . நன்றாக உள்ளது.

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

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Ungaloda thiramai viyappaga irukku. Vaalthukkal

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Bro, hitting like button while watching...

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

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Lovely informatioms bro!

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

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Wow

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வேற லெவல் வெறித்தனம் bro video நான் மிகவும் ஆவலாய் உள்ளேன் அடுத்த பதிவிற்காய்

[@mathivanang1594]

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

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Aye thaliye valikkudu bro but super explanation

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

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Hatsoff bro... So much stuff...

[@RatheeshRTM]

Excellent

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

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

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

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This is one of your best videos. Great 👍

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Super expline bro thanks for making a amazing vedio 🙏

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

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

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Awesome hardwork brother ✨

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

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

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Really amazing work. Congrats

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Semma bro

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

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Amazing...👍👍👌😇

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Intha chanal oru arivu pokkisham😍👍👌😍

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Perfect explanation 👌👍

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[@Trancyrealm]

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

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I love it

[@naveenraj2008eee]

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

[@natarasangunasekaran4137]

மிகவும் பயனுள்ளதாக இருந்தது தாய் தமிழில் வழங்குவதற்கு கோடானுகோடி நன்றிங்க

[@dparthibhan1]

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

[@Sanjay-jn4eu]

Sema waiting for episode 2

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

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

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Science is lovable❤️❤️

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great video bro...ur hardwork speaks.

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Amazing Graphics and animations !!! 🤩

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Semma super👌 vera level👏👏👏👏👏🙏

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Your really a great scientist it's amazing

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Hardwork never fails, You are the Great..

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hats off to ur efforts

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

[@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

[@sureshrajp7552]

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

[@elangokumar8313]

Hi Ranjith bro.. A great work..bro