A very quick intro to astrophotography
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This document provides a quick introduction to astrophotography and some of the challenges involved. It discusses different types of targets like the Milky Way, moon, planets, and deep sky objects that can be photographed with various lens types from wide angles to telephoto lenses. It also outlines issues like light pollution, sensor and equipment limitations, atmospheric effects, and other problems. Finally, it provides examples and resources on topics like light pollution filters, tracking mounts, stacking software, and techniques for addressing noise, rotation, and other sensor-related problems.
A very quick intro to astrophotography
- 1. A very quick intro to astrophotography …or one more reason to lose sleep at night Ingvar Stepanyan (rreverser@) https://www.instagram.com/rreverser/
- 2. Milky Way photography (wide angle lenses) https://pxhere.com/en/photo/1188031
- 3. Meteor showers (wide angle lenses) https://www.instagram.com/p/CDzQfr0n76F/
- 4. Moon (moderate telephoto lenses) https://www.instagram.com/p/B-0YNHfn8FU/
- 5. Planetary photography (longer telephoto) https://www.instagram.com/p/CCgxBuJHxxt/
- 6. Planetary photography (longer telephoto) https://www.instagram.com/p/CDmsYWrn-bq/
- 7. Planetary photography (longer telephoto) https://www.instagram.com/p/CCgceOHHHgR/
- 8. Deep sky photography (moderate to long) https://www.reddit.com/r/Astronomy/comments/21ck60/the_ apparent_diameter_of_more_objects_compared_to/
- 9. Deep sky photography (moderate to long) https://www.instagram.com/p/CDLokivnsx6/
- 10. Deep sky photography (moderate to long) https://www.instagram.com/p/CCy6xZGHsmq/
- 11. Deep sky photography (moderate to long) https://www.instagram.com/p/CG5XQ-GnVze/
- 12. Deep sky photography (moderate to long) https://www.instagram.com/p/CHzBJ8hHjpA/
- 13. Issues (the fun part!) • Light pollution • Sensor & lens resolution • Sensor capacity (max amount of light) • Sensor noises (random, read noise, dark current, fixed pattern, …) • Earth rotation (star trailing) • Weather and atmosphere (glow, fluctuations, clouds, …) • Photobombing (satellites, planes, birds, …) • …(couldn’t fit more)…
- 14. Light pollution https://owlcation.com/stem/Light-Pollution-and-How-We-Can-Beat-It
- 21. Earth rotation https://commons.wikimedia.org/wiki/File:All_In_A_Spin_Star_trail.jpg
- 22. Earth rotation 500/focal length = max shutter speed in seconds 500/10mm = 50 sec 500/200mm = 2.5sec (and don’t forget the crop factor)
- 23. Earth rotation Telescopic mounts (shown: some Sky-Watcher model)
- 24. Earth rotation Star trackers (shown: Star Adventurer Mini)
- 25. Sensor noises: random noise https://skyandtelescope.org/astronomy-blogs/imaging-foundations-richard-wright/astrophotography-gentle- introduction-noise/
- 28. Solution: stacking • AutoStakkert • SiriL • DeepSkyStacker • Sequator • APT • PixInsight • …
- 31. Sensor noises & vignetting https://beltoforion.de/en/astrophotography/stacking.php
- 32. Sensor noises & vignetting https://beltoforion.de/en/astrophotography/stacking.php
- 33. Sensor noises & vignetting https://beltoforion.de/en/astrophotography/stacking.php
- 34. Sensor noises & vignetting https://www.reddit.com/r/astrophotography/comments/7apmpb/comparison_of_an_image_with_and_without_dark_and/
- 35. Like, share, subscribe, go out and do it! Ingvar Stepanyan who/rreverser https://www.instagram.com/rreverser/