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Andromeda Galaxy
Lens: Takumar 200 F4 Camera: Pentax K-5 Photo Location: Everglades National Park ISO: 1600 Shutter Speed: Above 6s Aperture: F5 
Posted By: stanzhou, 12-29-2014, 09:35 PM


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12-29-2014, 09:43 PM   #2
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How did you do it?
12-29-2014, 09:54 PM   #3
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QuoteOriginally posted by MadMathMind Quote
How did you do it?
mount camera on this
Sky-Watcher USA - Star Adventurer Photo Package - Mounts
12-29-2014, 11:42 PM   #4
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Wow! How does this thing track? I don't see any GPS references in the product description so I suppose it is not GPS based... But I have no experience in astrophotography so forgive my ignorance. Your shot is very pretty, but it seems too close for a 200mm lens. Is it a crop? Anyway you did this, I like it!

12-29-2014, 11:57 PM   #5
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Wow great shot.
12-30-2014, 07:55 AM   #6
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Wow!!!!!!!
12-30-2014, 09:24 AM   #7
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QuoteOriginally posted by Pentaxpixie Quote
Wow! How does this thing track? I don't see any GPS references in the product description so I suppose it is not GPS based... But I have no experience in astrophotography so forgive my ignorance. Your shot is very pretty, but it seems too close for a 200mm lens. Is it a crop? Anyway you did this, I like it!
I'm not the OP but I'll answer anyway.

Tracking: It tracks mechanically. You point the axis of rotation at Polaris, the north star. That process is called "polar alignment". The mount rotates at 1 revolution per day to offset Earth's rotation. (southern hemisphere users have a tougher time using this because there's no bright "south star" to align.)

Is it a crop? Maybe, but not by much. The Andromeda Galaxy is large. It's 6 times wider than the moon.
12-30-2014, 10:03 AM   #8
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QuoteOriginally posted by DeadJohn Quote
I'm not the OP but I'll answer anyway.

Tracking: It tracks mechanically. You point the axis of rotation at Polaris, the north star. That process is called "polar alignment". The mount rotates at 1 revolution per day to offset Earth's rotation. (southern hemisphere users have a tougher time using this because there's no bright "south star" to align.)

Is it a crop? Maybe, but not by much. The Andromeda Galaxy is large. It's 6 times wider than the moon.
It's not a crop. I was astonished when I see it. The Galaxy is much larger than we thought

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