Citizen scientist Judy Schmidt explains the basics of how she transformed raw telescope data into a spectacular image of the Phantom Galaxy.
, its proper name is M74. We're just going to enter the name of that galaxy in the MAST search bar, just like if you were using Google. Normally, I like to use the advanced search because it's just easier for me to filter a bunch of things out.Editor's note: Look at the left-hand side of the MAST archives webpage for the advanced search parameters.We need to avoid the yellow and the orange results.
Another thing that's very useful is"Calibration Level." That is the 'wrongness' of the data. Select Calibration Level 3 to get the images that have been aligned and matched.The James Webb Space Telescope's imagery of NGC 628 shows glowing dust in this citizen science image. Once you have that, I'll explain the filters as quickly as I can. There's a column in the image information where it says"Filters.
Space.com: So overall, the key would be to get a variety of filters from different wavelengths. You want longer ones, you want shorter ones. How many, minimum, is good to work with? Two, three?I download them all and I puzzle it until it looks right. Once you've selected your image, click"show filter" and you can see a thumbnail. With this M74 filter, I don't know exactly what I'm looking at yet because it's so small, but it looks awesome.
A large portion of the James Webb Space Telescope's dataset is available online, for free, through the MAST archive.You click,"Add data products to download basket." Make sure not to download everything you see at first. Right now, I can see more than 1,000 files. I'd recommend you select I2D, the rectified 2D image. It's a FITS file, which seems to be pretty familiar for anyone who does astronomy. The FITS file is compressed into a ZIP file. .
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