The astrophotography tag has no wiki summary.
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0answers
20 views
Aligning images of starfields
I have two images taken within 30 minutes of each other in the same part of the sky. They are very similar but are slightly offset due to the Earth's rotation and other factors.
I know: the X, Y ...
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1answer
75 views
I want the Saturn's position in terms of Declination and Right Ascension?
I want the Saturn's position in terms of Declination and Right Ascension for a couple of month in the interval of 1 hour in a text file to do a simulation. Which site can provide me these data?
Or ...
6
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2answers
143 views
Why do astronomers never put a scale on their photographs?
Why do astronomers never put a scale on their photographs? I have been looking at images of the Bird nebula, a collision of three galaxies, but in none of the dozen or so that I have found, nor in the ...
3
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1answer
85 views
If the observable universe keeps expanding would we eventualy see light 24/7… clouds permiting?
If we can see more observable universe could there be a time when day and night looked the same?
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1answer
43 views
Does an uneven and/or moving surface affect quality when using a solar filter?
I have chosen to make my own solar filter using Baader as opposed to Mylar or anything else based on these: http://physics.stackexchange.com/a/25204/6805 and ...
6
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1answer
123 views
What sort of equipment would I need to take a photo like this?
I'm interested in doing some astrophotography and I'm looking into the equipment needed to get a photo like this: http://www.flickr.com/photos/cscunha1984/6619321531/in/faves-heyvian/
I'm not looking ...
3
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3answers
44 views
Quality loss when adding more components to a telescope?
I would think this would be inherently true, but I'm curious:
(Assuming the highest quality amateur instruments are used.)
Is quality lost when, say, adding a T-mount adapter, diagonal or any other ...
-1
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2answers
2k views
Celestron NexStar 6 SE vs. Orion XT8 [closed]
I'm interested in purchasing a new telescope and have narrowed it down to the NexStar 6 SE vs. the Orion XT8.
I'd like to be able to get into astrophotography and read that having the Go-To ...
6
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3answers
39 views
How to get started in Astronomy (UK based) [closed]
I have always been interested in space and astronomy (in my youth - I wanted to be an astronaut).
However for various reasons, I never quite got started. I now want to get started - small but ...
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4answers
10k views
Can the “Milky Way” galaxy be seen by the naked eye in a clear sky?
Is this photo "real"? Are the stars not super-imposed in the image?
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0answers
24 views
What equipment is needed for equatorial drift scanning/TDI with a Dobsonian?
It should be possible to do a "parked scan" along the celestial equator ("stripe 82" and "stripe 10") with a Dobsonian telescope, as no tracking is required. I can foresee two issues, though: first, ...
15
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5answers
730 views
What do the colors in false color images represent?
Every kid who first looks into a telescope is shocked to see that everything's black and white. The pretty colors, like those in this picture of the Sleeping Beauty Galaxy (M64), are missing:
The ...
7
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1answer
31 views
When taking a sequence of exposures for stacking/coaddition, what dither patterns are most commonly desired? Why?
When taking a sequence of exposures for stacking/coaddition, what dither patterns are most commonly desired? When visiting a telescope, what default dither patterns would a visiting astronomer like to ...
