Can anyone tell me how these shots were taken?

[susanhmorgan]

Hi! I was checking out my local skywatching calendar and there are 2 shots on their front page that left me with a visible question mark on my forehead.. The have startrails but the silhouettes of the people with their telescope are clear... To have startrails, you have to leave your camera setting on bulb and these people with their telescopes couldn't have sat there that long to have these photos taken.. Anyone know?? Here's the link: Morehead Planetarium and Science Center :: Skywatching Sessions
Thanks!

[windrider86]

Easy, PHOTOSHOP!

[zona5101]

a composite of two images

[SwissJon]

Certainly is.. I took this photo of myself for a 30sec shot sillouette.. Took 3 tries to get it and even then my head is slightly blurred.. Not even close to getting star trails. You're looking at 8 mins or more for decent star trails, depending on the focal length.

[susanhmorgan]

Thank you for your replies. I wish I was adept at photoshop!! I'd love to learn how to merge 2 or 3 or so images. Anyway thanks for erasing the dumb question mark from my forehead!!

[windrider86]

No question is ever dumb! Keep practicing and you'll be an expert in no time!

[PixSixSix]

I think another way to do it is to do your star trail photos over a period of time (either one long exposure or several 30 second exposures) and then do one final shot with the people in it and then smash em all together in photoshop.

[jamesev]

Originally Posted by susanhmorgan

Thank you for your replies. I wish I was adept at photoshop!! I'd love to learn how to merge 2 or 3 or so images. Anyway thanks for erasing the dumb question mark from my forehead!!

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