Photograph the Milky Way? - tracking tripod
Is it possible for the Milky Way, without the camera on a tripod instead of photo? If yes, what is the exposure time is longer than I can use without star stripes?
Saturday, January 30, 2010
Tracking Tripod Photograph The Milky Way?
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The Milky Way is about 30 light-years across! And then, the space satire that takes pictures of the area is moving very slowly in comparison to his size! So we should have 400,000 years have just enough to take a picture of the entire Milky Way!
Yes, but with some considerations. If you are in a dark sky and use a high ISO setting, like 1600 or later, you can after the conquest of the stars with the naked eye in only 15-30 seconds. In a broad spectrum of construction lines begin to be evident even go over 30 seconds.
Yes, but with some considerations. If you are in a dark sky and use a high ISO setting, like 1600 or later, you can after the conquest of the stars with the naked eye in only 15-30 seconds. In a broad spectrum of construction lines begin to be evident even go over 30 seconds.
It also comes on the goal that you are saving, what size they print their final demise of the object. With the 35mm format, I found that the term of not more than 0.001 "in the film produced acceptable results. This is an equation that I avoided in the past used to calculate the exposure time up to scratch reprehensible.
Exposure (in seconds) = 350 / (F x cos (declination))
"F" is the focal length in mm and "decline" is the decline of the image that is closest to the celestial equator.
Use as a starting point if you are using a 35-mm camera and see what will be shot on film (or CCD). If you find that the results are acceptable, try to reproduce the exposure until you find your own limits. You can comfortably through that covers what will be surprised.
Take a picture that contains the weakness of the Milky Way, a long-term exposure requires ten minutes or less. So there was definitely for surveillance in a way needed. It took a few photos with my digital camera in a dark sky last weekend. The longest of my shutter remains open is 60 seconds. He showed that the swan is the Milky Way and the stars are about one order of magnitude 5th I zoomed in 3x and had over a beam during the exposure of one minute. No zoom and bands is obvious.
Tom: The Milky Way is the band of light that we are in the sky, the light from stars created in the spiral arms of our galaxy.
There are more people and more (including astronomers) with the name of the Milky Way to the entire object named "Galaxy represented" (capital letters) to. To avoid confusion, you could say that our galaxy (where) the capital G), or the Milky Way (with or without capital.
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On the day when I used to do to this, I found that the exposure of 30 seconds with a short focal length (also known as wide-angle) at 400 ASA Ektachrome slide film was barely enough to see a peak like this (It was) a dark spot.
The wide angle lens has given me more of the sky, and much weaker bands (in the picture is not visible) to the eye.
When I try the same thing today (and no doubt that this question was asked), I have a series of 30 frames per second (eg, 20 of them) with a Canon Digital Rebel () and stack them (after the alignment process), so that the light add to the 20 picturesed up, I am the sensitivity (Set of 400 ASA or how to simulate these days) to the grain the same as the Ektachrome.
That would give me exposure amounting to 600 seconds (10 minutes), but only with the line of fire of 30 seconds.
Try it and see. based on the decline and the field of view, but you should start to produce images of interest in a range 20 to 30 seconds.
I'm no expert in photography, but a picture of the Milky Way on clear skies away from city lights, there is an exposure time of 15-20 seconds. For a tripod is usually sufficient.
We are in the Milky Way. You can not as a picture of him. Each of the stars and planets you can see, only a very small part of the Milky Way.
We are in the Milky Way. You can not as a picture of him. Each of the stars and planets you can see, only a very small part of the Milky Way.
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