Shadow on the moon? Bird? & Jupiter

OK, what's this shadow on my pic? I caught it while still dialing in focus. Its only in one of my images, 100% crop.
I'd expect a bird to be a fuzzier(more OOF) silhouette, and larger, but not sure what else it could be.

Shooting at 840mm on 1d4.

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I did end up with a nice pic of the moon next to Jupiter & 4 of its moons. Amazingly clear night for central Ohio.

Composite/stack. Moon, Jupiter and moons are 3 separate exposures. Jupiter and the Moon would be blown out to see Jupiter's moons. Position also altered. They were not this close IRL, and would not fit in a 840mm frame, though IRL it looked close to this. (close). Scale is unaltered. WB is adjusted a bit cooler for the Moon than the rest. Orientation is unaltered. Distance between Jupiter and its moons is unaltered.

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Your shadow on the moon may be a distant bat or owl that you captured.

It's a bird. I was taking sunset pics the other day and got the same thing.

Wow, that second picture is awesome!

Thinking about it a bit more, the moon was pretty low in the sky, so the Owl/Bat wouldn't have to be all that high, to still be very distant. So, you're probably right.

Nice moon shot in the second but something is definitly wrong with the picture . Jupiter is perfect round but the moons are star trailed . That can't be . Did you do some composite shots for this one ?

amazing shots!

Celestron wrote in post #10799067
Nice moon shot in the second but something is definitly wrong with the picture . Jupiter is perfect round but the moons are star trailed . That can't be . Did you do some composite shots for this one ?

Thanks, and yes it is a composite, I'll make a note above. The Moon, Jupiter and the moons, are 3 separate exposures. Jupiter was blown out to get its moons visible, and I liked the the fact I could see its colors in an underexposed shot. My bad for not noting it upfront.

JC4 wrote in post #10799103
. My bad for not noting it upfront.

Nothing wrong with composite photos at all. You did a fantastic job. It's a very nice image.

gjl711 wrote in post #10799128
Nothing wrong with composite photos at all. You did a fantastic job. It's a very nice image.

Nothing wrong with composites, but IMHO it should be mentioned up front if they are...

gjl711 wrote in post #10799128
Nothing wrong with composite photos at all. You did a fantastic job. It's a very nice image.

Thanks, I know, do it all the time. I just like being upfront, and forgot to this time. I don't want anyone who doesn't know better to think its right out of the camera or anything.

And thanks above for the comments on the pic. I stepped outside to see if I could catch the ISS, and missed it, but it was such a clear night, and I saw Jupiter so clearly, thought I'd give this picture a go. Too bad I couldn't see Neptune too, it should have been in the general area.

JC4 wrote in post #10799172
Thanks, I know, do it all the time. I just like being upfront, and forgot to this time. I don't want anyone who doesn't know better to think its right out of the camera or anything.

...

Otherwise people like me who are new to astrophotography drive themselves nuts trying to do do the same thing in a single shot, and wondering how the h*** did he do that!!

simply amazing job! Thx for sharing technique.
besides stacking did you "scooch" them closer together?

Taking shots last night, in my 55-250 lens I could not get them together in same frame @ more than 170mm or so (I'm guessing here, did not know exactly)

mtbdudex wrote in post #10799281
simply amazing job! Thx for sharing technique.
besides stacking did you "scooch" them closer together?

Taking shots last night, in my 55-250 lens I could not get them together in same frame @ more than 170mm or so (I'm guessing here, did not know exactly)

Thanks

Hahaha, caught again. Forgot, I did scooch them together too. They would not fit in this frame, or the entire Moon in the pic at 840mm.

Honest things in the pic are size, orientation and rotation. WB on the moon is adjusted a bit cooler than Jupiter.

I hope I didn't forget anything else.