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Object Info/Apparent Data
#2
Hello,

Regarding the Apparent Data tab of the Object Info, the "Altitude above visible horizon" is the actual, observed, apparent altitude above a clear horizon (e.g. the ocean) including the effects of refraction.

Regarding the atlas, there are other charts that are more appropriate to this purpose. Think of the atlas like a book atlas. You wouldn't use an atlas on your desk for this task. Sure, the interactive atlas can technically be put into something akin to the modes of the other charts. But there is a reason that there are special purpose charts: they can better serve a specific purpose than the atlas can. Use either the Naked Eye chart or a telescope/binocular finder chart for this. The Naked Eye chart displays the visible horizon, taking into account the altitude of the observer and refraction, so it is well suited. If you will be using a telescope, or binoculars, then use the custom finder chart for your telescope or binoculars. Not only does this have the same naked eye view, but it can also show you want you would see in the eyepiece, and again, the horizon accounts for altitude and refraction in both views. If it were me, I'd use the finder chart for my 8x50 binoculars. Open the chart for it via the moon in an observing list, and then try time stepping forward/backward by a minute for each click. Another advantage of this chart is that it will help you find the right part of the sky to be looking at, because the naked eye portion will display any visible stars.
Clear skies,
Greg
Head Dude at Skyhound
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Messages In This Thread
Object Info/Apparent Data - by bigmasterdrago - 2021-10-29, 05:01 PM
RE: Object Info/Apparent Data - by theskyhound - 2021-10-29, 05:23 PM
RE: Object Info/Apparent Data - by PMSchu - 2021-10-29, 05:33 PM
RE: Object Info/Apparent Data - by bigmasterdrago - 2021-10-29, 06:46 PM

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