Event JSON
{
"id": "52ed0dfe2234e0157415b3274d4e1a835899c88bb8b77833430a34ca45a14335",
"pubkey": "b7ce179d647f82b9aab9861949568063e91db6dc77265754c3b473624924cae2",
"created_at": 1779441596,
"kind": 1,
"tags": [
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"nebula"
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"url https://pixelfed.de/storage/m/_v2/1483/0d402c64b-2701fc/pDAWHc69YKQk/LGtoDo9Xp7c2znAayNZYzb9COD9lgzaaG7QTYo74.jpg",
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[
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[
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[
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"-"
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"content": "This is my attempt at processing James Webb Space Telescope (JWST) data of Sh 2-305. It is an emission nebula usually visible in red (H II emission), but it is displayed here in false-color infrared. Blue areas emit higher-energy photons than red regions. This area is a stellar nursery where gas and dust remnants from supernovae or collisions form new stars. The three versions show the nebula only, with galaxies only, and with everything else.\n\n\n\nA great deal of work went into creating a clean nebula image with as few artifacts as possible. After data extraction and initial stretching with #Siril, the single monochrome filter images were combined, processed, and cropped in #GIMP. The combined image was then run through #StarNet++ to remove most of the stars. Since StarNet++ does not work well with JWST data, it leaves artifacts for every star, especially the brighter ones, whose long spikes typical of JWST overlay large parts of the image. I therefore had to remove each star artifact manually using the clone and healing tools in GIMP. This took tens of hours to complete. #GMIC additionally helped reduce banding. As such, this is an artistic interpretation by me and is not scientifically accurate. The full resolution versions can be downloaded from https://www.picturavis.com/index?/tags/1204-jwst (these JWST images are crazily detailed).\n\n\n\nThe person responsible for this JWST proposal is Mark McCaughrean of the Max-Planck-Institut für Astronomie in Heidelberg. He also shared an initial version of the uncropped processed image: https://www.flickr.com/photos/markmccaughrean/55209728128/\n\n\n\nAttribution: NASA/ESA/CSA\n\nTelescope: JWST/NIRCam\n\nProposal ID: 4547\n\nObservation description: The stellar \u0026 sub-stellar initial mass function in Sharpless 305: imaging\n\nRelease date: 02.04.2026\n\nFilters (mapping): F140M (blue), F150W+162M (light blue), F182M (blue-green), F212N (green), F300M (light green), F335M (yellow), F360M (orange), F444W (red)\n\n\n\n#Sharpless305 #Sh2305 #JWST #JamesWebb #NIRCam #Nebula #SpaceTelescope #astrophotography #DeepSky #DigiKam\nhttps://pixelfed.de/storage/m/_v2/1483/0d402c64b-2701fc/pDAWHc69YKQk/LGtoDo9Xp7c2znAayNZYzb9COD9lgzaaG7QTYo74.jpg\nhttps://pixelfed.de/storage/m/_v2/1483/0d402c64b-2701fc/Gdd38ZRcf62P/TgOxNcpwld4eJSfZLqOOD6RL37ffUFPylyEj00Ak.jpg\nhttps://pixelfed.de/storage/m/_v2/1483/0d402c64b-2701fc/pExZNVpi7Ote/UPZZmdMNw6ZMPBNmnrVtcZTVN9xHYRrzgJOT0HCP.jpg\n",
"sig": "f19d25dcca8acc8a5d54343fb3dc861966d57a63ab8f52556ddf008e0b231a47af65c3b4720eb005ad29f1f7c3fa14d29c00087e99c0ab3badef42fa134edc33"
}
