File:The Great Orion Nebula in Narrowband.jpg
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Summary
[edit]DescriptionThe Great Orion Nebula in Narrowband.jpg |
English: Here's an image I captured this last week of the Orion Nebula M42. Everyone who has done any astronomy is probably quite familiar with this star-forming region that sits in the middle of Orion's sword. The colors will not be familiar to most people, since the colors are falsely introduced by using narrowband filters. Red represents Sii emission, green/orange represents H-alpha emission, and blue represents Oiii emissions. The most interesting photographic thing about the Orion nebula is the immense brightness dynamic range in the area. The inner core, the trapezium, can be seen well in just small fifteen second exposures in most amateur telescopes, but the outer wispy clouds took me over 16hrs of exposure to properly show. This also presents a problem in how one can show both the dim and faint at the same time, which is actually quite easily solved in post-processing using HDR composition and adaptive histogram transformations.
Technical details: Equipment: Orion ed80tcf refractor SBIG ST8300m CCD Baader narrowband filters Paramount MyT equatorial mount Exposure: 28*1800" Ha 35*120" Ha 15*1800" Oiii 30*120" Oiii 10*1800" Sii Total: 30hrs |
Date | |
Source | Own work |
Author | Astrofalls |
This image was uploaded as part of Wiki Science Competition 2019. |
Assessment
[edit]
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This image was selected as picture of the day on Vietnamese Wikipedia for 5 September 2023.
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Licensing
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:25, 21 November 2019 | 2,250 × 1,800 (5 MB) | Astrofalls (talk | contribs) | User created page with UploadWizard |
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Metadata
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Pixel composition | RGB |
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Orientation | Normal |
Horizontal resolution | 120 dpi |
Vertical resolution | 120 dpi |
Software used | Adobe Photoshop CC 2019 (Macintosh) |
File change date and time | 14:26, 12 November 2019 |
Date and time of digitizing | 12:34, 12 November 2019 |
Date metadata was last modified | 07:26, 12 November 2019 |
Unique ID of original document | xmp.did:6e64fe84-b59c-4f29-bbc2-b77a4cef84af |
IIM version | 2 |
- Images from Wiki Science Competition 2019 in the United States
- Featured pictures on Wikimedia Commons
- Quality images
- Featured pictures on Wikipedia, Vietnamese
- CC-BY-4.0
- Self-published work
- General category images from Wiki Science Competition 2019
- General category images from Wiki Science Competition 2019 in the United States
- Uploaded via Campaign:wsc-us
- Photographs taken with Orion telescopes
- Taken with SBIG STF-8300