Interesting object

https://www.legacysurvey.org//viewer/?ra=358.2227&dec=-0.6931&layer=hsc-dr2&zoom=16
These look so neat. Why is it that some objexts have this effect bd others dont?

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What effect do you mean?

Spiral

Sorry, this got missed somehow!

Why some galaxies form spirals of various types and others don’t is the topic, in various forms, of tens of thousands of papers over the past 6+ decades

Google galaxy morphology for a start

Dr R. Buta is a friend of Galaxy Zoo and a leading expert in the field
https://ned.ipac.caltech.edu/level5/Sept11/Buta/frames.html

Thank you I will check it out!