How NASA imaged Webb's First Deep Field with Joe DePasquale

Подписаться 224 тыс.

Просмотров 20 тыс.

50% 1

00:00 Introduction
01:00 Joe DePasquale and different workflows
01:55 How to download FITS files from MAST
04:45 Extracting and viewing image files in PixInsight
09:20 Using Star Alignment to register the images
10:55 Renaming images for later
12:00 Initial color application with Pixel Math
15:42 Crop image to just the galaxy cluster
16:30 Balancing the colors with preview images
19:27 Full Color Calibration using spiral galaxies
23:35 Apply final color calibration with Histogram Transformation
25:25 Splitting out the image into R,G,B color channels
26:18 Photoshop sharpening with APF-R plugin
28:46 Fixing the background levels
31:53 Applying color
34:06 Additional background adjustments
35:27 Camera RAW adjustments
38:34 Fine background adjustments
41:44 Removing camera artifacts
42:48 Final background neutralization and crop
44:24 Discussion with Joe
🔔 Subscribe for more: ru-vid.com...
🖖 Share this video with a fellow space traveler: • How NASA imaged Webb's...
🔴 Watch my most recent upload: goo.gl/QbRcE2
🚀 Help me improve the channel by joining the community on Patreon
/ launchpadastro
🚀 Check out Launch Pad merchandise!
teespring.com/stores/launchpa...
Disclaimer: Some of these links go to one of my websites and some are affiliate links where I'll earn a small commission if you make a purchase at no additional cost to you.
🌐 Files and Tools
Joe's files of SMACS 0723: www.dropbox.com/sh/1lsp88pt6n...
Alyssa's files of the Carina Nebula: stsci.box.com/s/e59yjyaqh01u7...
MAST: mast.stsci.edu/
FITS Liberator (free): noirlab.edu/public/products/f...
PixInsight: pixinsight.com/
GIMP (free Photoshop alternative): www.gimp.org/downloads/
APF-R Photoshop plugin: picture-instruments.com/produ...
✅ Let's connect:
For business inquiries - chris AT christianready DOT com
Twitter - @launchpadastro
Instagram - @launchpadastro
Facebook - / launchpadastronomy
Discord - / discord
📭 c/o Christian Ready
P.O. Box 66
Westminster, MD 21158
United States
Earth
~-~~-~~~-~~-~
Watch next: Solar Orbiter Discovers Surprising new Phenomenon in the Sun
• Solar Orbiter Discover...
~-~~-~~~-~~-~

Наука

Опубликовано:

12 июн 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 53

@LaunchPadAstronomy Год назад

🔴Learn how NASA processed the Carina Nebula: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1QPJd2Fl6i4.html

@kamcashman Год назад

Hello my Friend.....guess we're spending 45mins eatting breakfast today/ Thanx for early upload

@LaunchPadAstronomy Год назад

Hope you enjoy, and a good morning to you as well!

@jasoniannone9675 Год назад

Answering these fundamental questions about "false color" astronomy images is an extraordinary service. Thank you.

@jamesmnoblesjr9062 Год назад

Because they have no idea. And will never be seen or experienced in reality….

@jamesmnoblesjr9062 Год назад

You built a camera that takes pics of objects that will never ever be seen in first hand, ever. It’s a great waste of resources but if your a visually oriented person enjoy…. I live in the Here, Now…

@mrbrown6421 Год назад

Yes, WOW! Great job Joe. Since 12.25.2021, I've been wondering about image processing. Joe is an interface between deep space sensors and the human eye. What a great job.

@dandurkin9735 Год назад

ThIs is a fantastic lesson by Joe and a wonderful insight into processing Webb's images. Thank you both!

@shaikameershameer7150 Год назад

Thanks a lot for your channel and nasa team in this video for their contribution.

@ZeroSpawn Год назад

Sweet Jebus 😳, i shat myself halfway through the walk through. Had to pause the video to change my shorts. Fantastic video Lanchpad! Yaaaaa!

@LaunchPadAstronomy Год назад

lol, you're certainly welcome and sorry about the shorts.

@justexactlyperfectbrothersband Год назад

Counting stars by candlelight eh? Where's the spiral light of Venus? Its lucky for us that you have friends who's heads are full of sparkling clover and they're willing to share it with us, thanks Christian!

@LaunchPadAstronomy Год назад

They're all dim but there's one that's really bright! Of course, it's just a foreground star :) Interestingly, Webb will never observe Venus because pointing toward it would warm up the telescope, and that would be bad :)

@ebrahemmh Год назад

When I do astrophotography and got images difficult to calibrate, I restart again taking another session 😅🤦🏻 great job thanks for sharing.

@miinyoo Год назад

Good stuff. Pixel insight is neat. Photoshop with math and expressions. Much easier to be sure everything is based predictably on the raw numbers to get to a clean plate from which to then do the artsy bits and cleanup. Lots and lots of cleanup and knowledge of what to clean up. Very easy to remove or distort something that should be there and vice versa. Also I did a bit of math in my head and if it's right, JWST's exposure for one quadrant of one filter is 1/2 hour. (30minx4x6filters=12hrs) 30 minutes exposure and getting enough 13 billion year old light to resolve those super distant galaxies. Now that's what you call sensitive.

@bravo_01 Год назад

I like those types of videos. Very practical. Thank you

@LaunchPadAstronomy Год назад

Cool! I’m trying something a little different.

@Ava31415 Год назад

excellent

@icosthop9998 Год назад

Very Good For those who are into this kind of thing

@ivytarablair Год назад

aaaaagh this is MARVELOUS!!!

@CraigStocksArts 4 месяца назад

Outstanding video series. It’s reassuring to see that Joe and Alyssa’s processes are very similar to mine, especially with Photoshop. I am curious since the video is a year old, how are they using the new tools, such as spectophotometric color calibration and AI tools.

@holdinmuhl4959 Год назад

Great work!

@Anti-socialSocialClub Год назад

After being removed from the X-Men Wolverine used his computer skills to land a job at NASA

@SonofTheMorningStar666 Год назад

Yay!

@benda2250 Год назад

Thanks a lot for this. I'm sure that Joe spend more time on Pixinsight and I would love to see more. For example I would have replace the Masked BKG EQ in photoshop with a Dynamic Background extraction in Pixinsight. Also a Deconvolution in Pixinsight would have been a more mathematical approach than the APF R Plugin.

@nb9403 Год назад

Symply Thank you❤️

@MrsTitina Год назад

This is woooowww

@PafMedic Год назад

Holy Humongous Files👀👀👀Bigger Than Hubbles,I Use PixInsight As Well As Gimp,This Is Soo Different Than Processing Hubbles,Thank You Christian For A NASA Guide Along,God Bless,Stay Safe,and Clear Skies❤️🙏🏻🌏🔭✨

@TheSpiritoftheCocktail Год назад

YESSSSSSSSSSSSS!!! I'm number 9!!!

@LaunchPadAstronomy Год назад

Always good to hear from you, my friend!

@glenda917 Год назад

Wow.

@jasoniannone9675 Год назад

RE: Persistence. How does he know what parts of the image are artifacts of the instrument and what are real? I assume this is more a question of access than a question of technical ability. When he finds an unwelcome blob on a star beam, he can just ask someone. He has access to operators and data mungers who can tell him those are artifacts.

@LaunchPadAstronomy Год назад

A lot of it is knowledge of how the camera works, which has been known since testing and during calibration. And yes, Joe does have access to the instrument scientists who know the detectors very well :)

@chrisholdread174 Год назад

*Me using windows paint* I bet I can make one look better. Jokes aside he seems to know that editing program by heart

@LaunchPadAstronomy Год назад

lol! Yeah, Joe really knows his stuff.

@AdamLeuer Год назад

Is there any where to get the processed versions of Webb photos in a lossless format (e.g TIFF or even PNG)? The main NASA site seems to only have JPEGs, which is a shame.

@LaunchPadAstronomy Год назад

Hi Adam, if. you go to webbtelescope.org or esawebb.org, you'll find full res versions in both TIFF and PNG. 👍

@AdamLeuer Год назад

@@LaunchPadAstronomy Oh that's perfect, exactly what I was looking for. Thanks very much Christian!

@santimaspons Год назад

😍

@fluff1066 Год назад

It would be interesting to know what quality of monitor he uses and if it's professionally calibrated.

@turnerthemanc Год назад

And heres me thinking Joe Pasquale was a squeaky voiced Pillok!

@helderafonso2609 Год назад

wen you said ,looks so natural.it's not natural at all it's just the operator interpertation.of the original image

@fotispanagiotopoulos347 Год назад

God Jesus really 😳

@dba750 Год назад

So what does Webb see? It sounds like all the images we've seen isn't real

@LaunchPadAstronomy Год назад

Oh they're quite real, my friend. The only limitation is that we cannot see the colors of infrared so we use the colors our eyes can see.

@ZeroSpawn Год назад

8:37 pay close attention. This is what Webb sees, the light is so faint our human eye balls can't see. We have technology that can extract light our limited eyeballs fail to capture (like microscopes) . Joe is showing us how they process the Webb data to make it usable for our wittle eyeballs. Questions Dba?

@ZeroSpawn Год назад

Also Dba, please don't limit yourself by saying these images are not real. Take some time to research why Webb was built, how it was built and why it was sent via Ariane 5 rocket past the moon. Then you may understand the crazy science & engineering behind Webb’s ability to show us the incredible universe 🌌.

@pobinr Год назад

What worries me is these people are producing these images with photo shop 🙄 Surely the info should be received & shared as is. Not tweeked to look pretty so we don't know how well they represent the real appearance of the object

@hubertheiser Год назад

Firstly, the uncalibrated sensor data don't tell the "truth" either, they represent the "perception" of the sensor. Secondly, these kind of images are produced to be looked at and enjoyed by humans. As a layman, this kind of processed image gives me a good impression of what is out there. Seeing noise and sensor-introduced color imbalances doesn't really help me with anything. Thirdly, if you wish to do some scientific image analysis the raw data are there for you to use. So what harm is done by publishing processed images like these? (I mean, aside from giving flat earthers and space deniers some reason to state that all space images are just a big lie 🙂)

@LaunchPadAstronomy Год назад

Well, now you know how to download the data from MAST and see it in it's raw format 👍

@pobinr Год назад

@@LaunchPadAstronomy true. I just need to make the effort 😉

@pobinr Год назад

@@hubertheiser applying calibration factors is fine. They are doing much more than that.

@hubertheiser Год назад

@@pobinr O really? Guess I have to watch that video again...😮