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Thread: Dust filaments on bulge of M31

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  1. #1
    Member petersurma's Avatar
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    Yes, seems like you sketched a fair indication of them, great ! Position (from M31 core) roughly halfway out to HIP3447 = SAO36609 is correct. Your sketch focus was on larger scales, sure (impressing anyway, wow !). I guess anyone else is just waiting for M31 to come up 'behind' (in alpha) the milky way, after the summer (or at least very late in the night), finally verifying (or falsifying) what a crazy German said once on the forum... :-)

    Wrt the 'theory' of field sweeping I have not heard a lot on the 'subjective' background of it to observers - that's why I asked (decoupled thread). I would have guessed that especially those guys in the sketching biz have their special opinion on this technique.

    As you say, yes, enlargement of the field of view (in your mind, i.e. you remember the other parts you already have swept over + patch them into a joint impression/picture) is also one clear objective, of course. I remember using FS e.g. on California regularily. This neb is so big, you can't get it well (in reasonably big scopes i.e. small fields) without sweeping over.

    But still, I was always amazed on HOW effective this technique really is. Seems our visual system is very much trained on enhancing perception during movements... I wonder if there is some more scientific work on it !?

    And of course, there must be more experience on this topic in the field of DSObserving.
    Last edited by petersurma; May 22nd, 2023 at 01:24 PM.
    Peter

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