File:Ritchey–Chrétien at Kickapoo Valley Reserve 2-b.jpg
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Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,280 × 960 pixels | 2,560 × 1,920 pixels | 4,864 × 3,648 pixels.
Original file (4,864 × 3,648 pixels, file size: 8.42 MB, MIME type: image/jpeg)
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Captions
A Ritchey–Chrétien telescope on a strain wave mount imaging under the dark skies of Kickapoo Valley Reserve.
Summary
[edit]| DescriptionRitchey–Chrétien at Kickapoo Valley Reserve 2-b.jpg |
English: I did a photo shoot with my rig at Kickapoo Valley Reserve in southewest Wisconsin while acquiring broadband data on IC 10. You can see the summer Milky Way setting with the bright stars of Cygnus on the upper left, and the Little Dipper is visible to the upper right.
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| Date | |||
| Source | Raw file sent to me (Cart) by the author per this diff | ||
| Author | Photo Brainandforce, edited from raw by Cart | ||
| Other versions |
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| This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: two brighter spots down right have been removed.
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Licensing
[edit]This file is licensed under the Creative Commons Attribution 4.0 International license.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:30, 11 November 2025 | 4,864 × 3,648 (8.42 MB) | W.carter (talk | contribs) | crop | |
| 21:23, 11 November 2025 | 5,472 × 3,648 (9.31 MB) | W.carter (talk | contribs) | Uploaded a work by Brainandforce from Raw file sent to me by the author per [https://commons.wikimedia.org/w/index.php?title=User_talk:Brainandforce&diff=prev&oldid=1112553026 this diff] with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
| Camera manufacturer | Canon |
|---|---|
| Camera model | Canon EOS R6 |
| Exposure time | 15/1 sec (15) |
| F-number | f/4 |
| ISO speed rating | 12,800 |
| Date and time of data generation | 01:27, 28 September 2025 |
| Lens focal length | 24 mm |
| Width | 5,472 px |
| Height | 3,648 px |
| Bits per component |
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| Pixel composition | RGB |
| Orientation | Normal |
| Number of components | 3 |
| Horizontal resolution | 240 dpi |
| Vertical resolution | 240 dpi |
| Software used | Adobe Photoshop 24.3 (Windows) |
| File change date and time | 22:30, 11 November 2025 |
| Exposure Program | Manual |
| Exif version | 2.31 |
| Date and time of digitizing | 01:27, 28 September 2025 |
| APEX shutter speed | −3.906891 |
| APEX aperture | 4 |
| APEX exposure bias | 0 |
| Maximum land aperture | 4.125 APEX (f/4.18) |
| Metering mode | Pattern |
| Flash | Flash did not fire |
| DateTimeOriginal subseconds | 70 |
| DateTimeDigitized subseconds | 70 |
| Color space | sRGB |
| Focal plane X resolution | 1,520 |
| Focal plane Y resolution | 1,520 |
| Focal plane resolution unit | 3 |
| Custom image processing | Normal process |
| Exposure mode | Manual exposure |
| White balance | Auto white balance |
| Scene capture type | Standard |
| Serial number of camera | 302021000107 |
| Lens used | RF24-105mm F4 L IS USM |
| Date metadata was last modified | 23:30, 11 November 2025 |
| Unique ID of original document | DD7DAE6DBC51E0D1146375AFE3BE4C88 |
| IIM version | 4 |