[mypspname]

Please help! see the pic.. why the ghost image (second moon)?? what can I do to avoid it?? Tia.

[ijd]

use a polarizing filter

[tbeachly]

That's no moon - it's a space station

Sorry couldn't resist

[cedmondson]

My guess is that you had a skylight / UV filter on the lens. Remove the filter & you won't get this.
ijd's suggestion that you use a polarizer might help to reduce the reflection from the surface of the water but it won't correct the ghosting.

[geniusworkin]

cant you edit it out ?

im sure any photo editing suite will have that funtionality.

gw

[mypspname]

Thanks guys.. maybe that was the UV filter. I'll try removing it.

[ryanyboy]

Nah, it's to big to be a space station....

Couldn't resist it either!