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How long an exposure would a photographer need to photograph star trails that are complete circles and why?
Wiki User
∙ 16y ago
== Roughly 24 hours (give or take a few seconds) ecause that is the time it takes for the earth to revolve one time. Two major points are missed here. This can only take place at two points on earth. At the north and south pole. This can only take place when the earth is tilted away from the sun for 6 months at a time, or else you would photograph a sunrise and a sunset in the 24 hours. Better advice: Place the camera on a spinning tripod facing upwards. Open the lens. Spin the camera. Close the lens. Hope this helps!
Wiki User
∙ 16y ago
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How do circles appear in isometric drawings?
Circles appear in isometric drawings as an elipse.
What are some examples of how circles are used in architecture?
notre dame in paris - the arches are based on intersecting circles
Do crop circles hurt the crops?
Yes they do; the crops crushed by making the 'circles' or designs is a financial loss to the farmer who planted it.
How are hills mountains represented on a topographic map?
hills and mountains are represented by circles on topographic maps.
Where is southern ocean located?
The Southern Ocean circles Antarctica, or the South Pole.
Which lines are complete circles?
They are circumferences
Are the tracheal rings of the fetal pig complete or incomplete circles?
The tracheal rings of the fetal pig are complete, not incomplete circles. The tracheal rings help to keep the airways open.
What prevent rainbows from being seen as a complete circles?
Earth does.
How do people get dark circles under their eyes?
Dark circles under eyes can be caused by fatigue, allergies, eczema, stress, smoking and sun exposure. They can also be hereditary or part of the natural aging process.
What are round light brown circles on the skin?
freckles they are buildup of color pigment in the skin. it's hereditary or caused by sun exposure
Benefits of using a maps?
they help you to know where you are and then guide you to where you are going as opposed to aimlessly walking around in circles until you die of exposure or thirst
What does 'Slow circles to calibrate' mean?
Slowly drive the vehicle in a circle (less than 3mph 5km/h) until the SLOW CIRCLES TO CALIBRATE indicator changes to CALIBRATION COMPLETED. This will take three circles to complete calibration.
What if a time lapse photograph is taken from South America with the camera pointed toward the south celestial pole If the shutter is left open for six hours what will the photo look like?
A whole bunch of arcs, 90 degrees long (quarter circles), forming partial circles around the center of the picture.
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COMPLETE CARE RENEWAL EYE CRÈME for deep hydration. And also helpful in removing dark circles
Are fetal pig tracheal rings complete or incomplete circles?
In a pig's trachea, the cartilaginous rings are complete upon birth. In men and women, the cartilaginous rings are not complete.
Are the tracheal rings of the fetal pig complete or incomplete?
The tracheal rings of the fetal pig are complete, not incomplete circles. The tracheal rings help to keep the airways open.
What exactly are dark circles?
Dark circles is a reference to the purplish half moons that appear under certain individuals eyes. They make a person appear tired, older, or sick. They are primarily a hereditary trait but other factors can contribute as well, such as, fatigue, sun exposure, and nutrition.
