The dark lanes of M13 enhanced
Posted: Fri May 27, 2022 10:51 am
By now it's probably known that I experiment a lot. Not only with object choices but also with equipment and processing. So doing weird things like processing a M13 capture (a mix of 30sec and 600sec shots) with StarNet v2 and see what happens.
I was expecting a kind of washed out, faint "blob" since all the stars were removed (StarNet v2 really does a great job) ... but much to my surprise it was more than that: the "propeller" became visible right away and some other structures too.
I processed the starless M13 in Photoshop and that gave even better results but it still was a kind of blob. By adding the stars back into it but at high transparency level, it became way more obvious
In the past they thought those dark lanes were dus lanes but now we know those dark lanes are randomly formed by the lack of bright(er) stars in those regions. So it only looks like this from our perspective on Earth.
Some lanes (like the propeller) are very obvious, others aren't. And since it's all happening in a small spot, it's actually a kind of cosmic Rorschach-test.
A dark lane that I see for example, will not be seen by someone else. So it's kind of subjective.
Nevertheless I am happy with this result. Especially since I've not seen it shown this way before (besides sketches). At least, not that I could find.
Here below the result with below it a version where I indicated the lanes I could see.
Menno
I was expecting a kind of washed out, faint "blob" since all the stars were removed (StarNet v2 really does a great job) ... but much to my surprise it was more than that: the "propeller" became visible right away and some other structures too.
I processed the starless M13 in Photoshop and that gave even better results but it still was a kind of blob. By adding the stars back into it but at high transparency level, it became way more obvious
In the past they thought those dark lanes were dus lanes but now we know those dark lanes are randomly formed by the lack of bright(er) stars in those regions. So it only looks like this from our perspective on Earth.
Some lanes (like the propeller) are very obvious, others aren't. And since it's all happening in a small spot, it's actually a kind of cosmic Rorschach-test.
A dark lane that I see for example, will not be seen by someone else. So it's kind of subjective.
Nevertheless I am happy with this result. Especially since I've not seen it shown this way before (besides sketches). At least, not that I could find.
Here below the result with below it a version where I indicated the lanes I could see.
Menno
- The dark lanes of M13
- M13-bsm.jpg (239.77 KiB) Viewed 707 times
- M13-csm.jpg (240.53 KiB) Viewed 707 times