Posts Tagged ‘Material’
Basic Astronomy (part 2) : Angular Diameter
Posted by: destinyofaries on: September 22, 2008
After we talk about parallax, now we will discuss about angular diameter.
I. Definition
The angle that the actual diameter of an object makes in the sky; also known as angular size or apparent diameter. The angular diameter of an object as seen from a given position is the “visual diameter” of the object measured as an [...]
Basic Astronomy (part 1)
Posted by: destinyofaries on: September 20, 2008
Before we learn further about astronomy, there are some basic knowledges that we must know and understand.
First, we will talk about measuring distance in astronomy.
Astronomical object lies in a very great distance from us. So far than our sense can perceive. That’s why our sense can’t have a 3-D visualization of the universe. Our sense [...]
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