File:M4 and M22 with Telephoto lens (8486498227).jpg
![File:M4 and M22 with Telephoto lens (8486498227).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/M4_and_M22_with_Telephoto_lens_%288486498227%29.jpg/800px-M4_and_M22_with_Telephoto_lens_%288486498227%29.jpg?20211219113452)
Original file (2,001 × 1,000 pixels, file size: 1.18 MB, MIME type: image/jpeg)
Captions
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Summary
[edit]DescriptionM4 and M22 with Telephoto lens (8486498227).jpg |
Subject: M4 and M44 Image Size: 1000 x 1000 (each half) Image FOV: 37 minutes by 37 minutes (each half) Image Scale: 2.22 arc-second/pixel (50% reduced) Date: 2011/05/07 and 2011/05/08 (Processing backlog of old images) Exposure: M4: 9 x 5 minutes, M22: 10 x 5 minutes, ISO1600, f/8 Camera: Unmodified Canon T2i/550D Lens: Nikon 800mm f/5.6 AI-S, at f/8 (sharpest) Mount: Astro-Physics AP900 Guiding: ST-402 autoguider through TV-102iis guidescope, Maxim DL autoguiding software
Remarks: SQM-L reading start/end = 2156/21.61 (M4); 21.58/21.49 (M22) The focus on M4 appears to be off, resulting in the fuzzy stars. |
Date | |
Source | M4 and M22 with Telephoto lens |
Author | s58y |
Licensing
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This image was originally posted to Flickr by s58y at https://flickr.com/photos/45032885@N04/8486498227. It was reviewed on 19 December 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
19 December 2021
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:34, 19 December 2021 | ![]() | 2,001 × 1,000 (1.18 MB) | Siloepic (talk | contribs) | Transferred from Flickr via #flickr2commons |
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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.
Orientation | Normal |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS5.1 Windows |
File change date and time | 19:11, 1 January 2013 |
Color space | sRGB |
Date and time of digitizing | 14:10, 1 January 2013 |
Date metadata was last modified | 14:11, 1 January 2013 |
Unique ID of original document | xmp.did:E8A8102D7054E211AC95BCCCB87B5A73 |