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How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:UgxduHMNaOj5xpsoqPB4AaABAg] I hope Roman doesn’t need glasses like Hubble did. Cuz, no Shuttle…

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:UgzWQd7l1FBsrktJshZ4AaABAg] Very interesting and enjoyable, but "how sharp of an image"? Is that even English? I reckon you've spent too much time in the US.

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugz06AGneZwCwyt4Pbl4AaABAg] Genuine question has Hubble received any damage in its illustrious history? Micro meteorites, tiny space debris, maybe particles hitting its detector and permanently damaging a pixel or two? Or is it still as pristine as the day it was at least repaired ? love your videos. Always so well explained and put together so thank you ?

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugxa7de6DiU_2rAs4y54AaABAg] A couple of telescope parameters you didn't mention - focal length and f-ratio. Focal length is how much a telescope magnifies. The Hubble has a focal length of 57.6 meters while the Roman has a focal length of 18.96 meters, so Hubble magnifies more than Roman. The Hubble produces an image of a given object about 3 times larger than Roman. On Hubble, 1 arc minute of sky is spread over 16.8 mm on the sensor where Roman is only 5.5 mm. Think of a 300mm versus 28mm camera lens. However, to compensate for shorter focal length, Roman has smaller pixels than Hubble, sampling the image provided by the mirror more finely and making it able to resolve objects in the near infrared similar to Hubble. That leads to f-ratio, which is how efficient the telescope is at gathering light. It is calculated by dividing the focal length by the diameter of the mirror. Hubble has an f-ratio of f/24 while Roman has an f-ratio of f/7.9. Roman has approximately 9 times higher light concentration per pixel than Hubble and why it can image much faster than Hubble. The resolution is the same because the mirrors are the same diameter. Resolution depends on the wavelength of light and the diameter of the mirror, specifically resolution = 1.22 x wavelength / Diameter. The field of view isn't controlled by just the sensor size (like she says), it's controlled by sensor size AND focal length. Because of the longer focal length of the Hubble, it only has a field of view (how much of the sky it sees) of 0.05 square degrees while Roman has a view of 0.28 square degrees, about 100 times larger. Plus, Roman has a much larger sensor than Hubble. Think a 4 x 5" sheet film versus a 35mm slide. So Roman gathers light much faster over a larger area than Hubble, and why Roman can complete a survey in 17 months that would take Hubble 17 years. For reference, the Hubble telescope was designed to resolve Cepheid variables (a very important tool for measuring cosmic distances) in nearby galaxies to calibrate the Hubble constant, the expansion rate of the universe. Hubble trades survey speed and wide coverage to achieve unrivaled spatial resolution in UV and visible light. Roman trades UV coverage and super-high optical magnification to capture Hubble-quality near-infrared resolution across vast swathes of space at unprecedented speed.

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugzir4dS14a4tIxCz4d4AaABAg] Thank you, I haven’t heard of this Roman telescope. Just a side note, your hair is beautiful.

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugz1U579llvSPWczCkV4AaABAg] An important point here is why it has a larger fov is not just the sensor, but also the smaller focal length. They are both brilliant telescopes, but they will be used slightly differently with the different fov's and focal length (57 vs 19 meters respectively). Which is still a crazy amount for roman. What makes roman so amazing is not just the fov, but also how fast the optics are (can gather a lot of light in a shorter amount of time) at an f/7.9 focal ratio compared to Hubbles f/24. So the fast optics and fov will make for an incredible telescope that scan large patches of the sky in a shorter time.

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugwv9jPg1dso7ds7Kmp4AaABAg] Under budget and ahead of schedule. And the administration is trying to destroy the center that managed this program.

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:UgwRUB5MfPwntxfxNtN4AaABAg] How the current number if staff will manage to process all the additional data that will arrive?

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugw4C3VazFsyiWVDLiJ4AaABAg] Does that mean Hubble is done once Roman is up there taking pics ?

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:UgyPSRIipZApS_GbB794AaABAg] Sorry, but the shape of the mirrors (i.e. the optical formula) allows for a larger field of view. Then the detector. The very first wifpic (wide field and planetary) camera of the HST had 4 800x800 pixels CCDs. Now we can do slightly better.

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:UgykJ75cR-7vzqW3JeN4AaABAg] They don’t have the same resolution

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugzm-xXz1Pj5pqoqqMV4AaABAg] Your accent makes names like "Hubble" sound like music.

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:UgxeXOCwk9R5EAYCj814AaABAg] Wait, wait, wait......the 30th? Of this month?!?!? I thought this was still years out!

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:Ugx8p57fcm9sN2fD8JR4AaABAg] Every bit of this was news to me. Thanks, teacher!

2026-08-16　과학/테크/IT트렌드

How is Roman's field of view 100 times bigger than Hubble's?! #shorts [댓글]

[ytcid:UgzG4Wir6wnU0clzblV4AaABAg] You say 17 years in this short, but the same line in the video is 17 hundred years

2026-08-16　과학/테크/IT트렌드

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