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How many photos do I need to cover a full circle around the tripod, and all the sky as well?

I've calculated my angle of view (AOV) from their spec sheet, with my Sony RX10 IV Camera as

$\alpha_{horizon} = 3.4388°$

$\alpha_{vertical} = 2.3150°$

$\alpha_{diagonal} = 4.1446°$

Any help would be appreciated.

Thanks in advance!

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  • $\begingroup$ Did you try astronomy.stackexchange.com? $\endgroup$
    – Nosrati
    Commented May 7, 2019 at 21:12
  • $\begingroup$ @Nosrati: It's not really an astronomy question... $\endgroup$
    – Brian Tung
    Commented May 7, 2019 at 21:34
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    $\begingroup$ The entire sky down from the zenith to the horizon covers a solid angle of about $20626$ square degrees. Each of your photos covers about $8$ square degrees. Let's add a margin of about $15$ to $20$ percent to allow for necessary overlap, and you probably need about $24000/8 = 3000$ photos. That's a ballpark figure, and doesn't tell you exactly how to arrange them, although starting each "row" at the same point and having some minimal overlap should be OK. $\endgroup$
    – Brian Tung
    Commented May 7, 2019 at 21:37
  • $\begingroup$ Keep in mind that unless you attach a large lens to this camera (possibly shooting afocally?), most of your shots will show blank sky. If you do this during the day, that's not necessarily a problem, although shooting around the Sun might be interesting. If you're shooting at night, you should be aware that the night sky moves noticeably over the course of just a few minutes. $\endgroup$
    – Brian Tung
    Commented May 7, 2019 at 21:40
  • $\begingroup$ @BrianTung I want to basically build a motorized tripod to make "gigapixel" type photos. Any idea on the formula to calculate these kind of things, so I can rework the math a bit for other things like figuring out what motors to use and the gearing? $\endgroup$
    – Mr. Demetrius Michael
    Commented May 17, 2019 at 19:17

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