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I'm wondering whether the possibility of having one's own "heat map" of their images will find any favor amongst the users at large, or at least among those of us with a large collection of images. AB did, once upon a time, produce a global one but, if I recall it right, isn't a feature of the site. Now, with some (considerable) effort I can produce one I think but the sheer weight of the task does not appeal to me and all the info are already contained within AB so why not leverage it?
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I would love to do that, but I have too many higher priority items to really schedule it yet. However, in the short term I'm planning a strong effort into several tools that will be very useful for planning sessions.
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Not sure what is meant by "heat map" here. What is it? CS, Göran |
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Something like this: https://app.astrobin.com/u/siovene?i=e4clel#fullscreen The darker the red, the more images there are on AstroBin. That was generated statically once some years ago, using all AstroBin images. Andrea would like to have something like that dynamically updated for each account. |
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Thanks Salvatore, I see! Yes, for me it would be extremely useful for to see where my images are distributed on a sky map - i am loosing track of all of them. Cheers, Göran |
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Salvatore Iovene: That's a pity. Can one download the relevant info from AB (name, center RA/Dec, radius) of all their images stored on site? |
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andrea tasselli: Yes, you can get that with a data download request in your settings. You get the images, plus a giant CSV file that include that information. If you explain to me what you need a heatmap for, I can prioritize an equivalent or better solution that fits better with my vision for the next big feature I'm working on. Thanks! |
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Thanks for the info. I guess my aim is to give me a better idea of how much sky I have already covered and points at, maybe less obvious, areas that I want to cover in the future, which is especially relevant in the MW band. My idea of heat map is one that gives both intensity (when overlapping images exist) as well as angular area coverage information, possibly in a map that respect angular distances and gives decent granularity so you can plan ahead where to go.
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andrea tasselli: Do you need this specifically as a heatmap? Is the goal to find new targets that you have imaged? For example, would something like this help instead: - A list of constellations with percentage covered ("You have covered 43% of Aquila") - A list of popular objects that you have missed ("You're missing these objects from the Top 500 most popular targets") - A list of objects that you have missed, that people who have imaged objects similar to yours have imaged ("5 astrophotographers who have imaged targets similars to yours have imaged NGC XXXX, and you haven't") |
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I'd think so, yes I need an heat map and while the first in the list can help somewhat the other two most definitely not, if not in the negative sense  .
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Why would they be a negative?
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Areas to avoid because too many people are mucking around there ;).
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What about if this was a tool to find objects imaged less frequently instead? Obviously you don't need to hear "You haven't imaged M31 yet!"  |
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It doesn't answer the main question the heat map would give me the answer to: I want to know and see where I haven't imaged yet and how the pattern of my imaged areas distribute. I really don't care what everyone else does.
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Yeah no, I get the added utility of a heatmap. But if the dark areas in your heatmap are a tool to see what to image next, wouldn't tailored suggestions also provide a similar benefit?
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It could potentially supplement but certainly not supplant a heat map. Besides, there is a rather large number of variables into that that only I can judge, I'm afraid. Like, when, with what and would the weather allow it. Is the moon up, what phase is it and to what distance to the target and so on.
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It could get complicated indeed. I tend to do a lot of planetary nebulae which I originally started doing since some of them can allow one to use moony times for narrowband but size and brightness also enter into the equation and that combines with moon phase and distance from the moon and altitude and more to make a given planetary either a good or lousy target on any given night.
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Actually, for me something that would help a lot would be the possibility to get a list of my images sorted after Ra with Dec in a second column (a bit like for example the HASH database is organized). And then with the image date so I can easily find it on my hard drives.
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After thinking hard on how to do it I realized that heat maps aren't what is required but rather something akin to mosaicking where the patches need not to show any intensity but just uniform color and with the size in proportion with the area covered which in first approximation can set to the images radius, although ideally the four corners' coordinates would be needed for a more truthful display.
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I have this on my list now for the planning tools I'm going to work on later this year. Might not be able to do a dynamic browseable/zoomable map, but perhaps static constellation heatmaps. What that work for you?
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With good enough resolution that would probably do, thanks.
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No reason the resolution cannot be high. It could be a zoomable image, but at least initially not something a map that you can navigate like Google Sky.
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