This is the same principle that a magnifying glass (lens) uses; it takes a small image on the paper and spreads it out over the retina of your eye so that it looks big. When you combine the objective lens or primary mirror with the eyepiece, you have a telescope. Again, the basic ...
This is the same principle that a magnifying glass (lens) uses; it takes a small image on the paper and spreads it out over the retina of your eye so that it looks big. When you combine the objective lens or primary mirror with the eyepiece, you have a telescope. Again, the basic ...
Later, the sun will shed its outer layers, forming a planetary nebula and leaving behind a dead core of mostly carbon and oxygen — a very dense and hotwhite dwarf star, about the size of the Earth. While the sun is typical in most respects, it does have one quality that stands out ...
Whether you’re using a camera lens or a telescope, learning how to focus your camera for an astrophotography image is one of the first big hurdles to overcome when entering this hobby. In this article, I’ll discuss the methods I use to focus my telescopes and lenses for astrophotography,...
A very few experienced imagers do this. Most of them use big dobs and custom software. They spend big bucks doing it. Dobs are basically a visual scope, and not well suited to long exposure DSO work. There is no magic solution, as can be seen by how few people do this, and what...
This size will fit in a typical drinking glass with the leaves able to reach over the top of the glass and “spread their wings” to the light. Your clones should be big enough to reach over the top of your cup You can cut a clone that’s shorter than 7″ (I’ve successfully ...
“The next big leap in technology is going to be very big, and it’s coming soon—as in, by the end of this decade, when several huge telescopes will be coming online,” Fienberg says. “The Giant Magellan Telescope and the Extremely Large Telescope are being built in Chile.” These ...
Too big to just go off quietly into the night and too small to trigger a supernova blast, they instead turn into gruesome monsters before finally turning themselves inside out. For these medium stars (which includes stars like our sun), the problem is that once a ball of oxygen and ...
2. M13 in Hercules for a globular cluster. (You may have to wait a month or two) 3. The Ring nebula in Lyra for a planetary nebula. (Again, not well placed now) 4. M42 in Orion for an emission nebula. 5. For a double star, look at Mizar, the center star in the big dipper...
This is the same principle that a magnifying glass (lens) uses; it takes a small image on the paper and spreads it out over the retina of your eye so that it looks big. When you combine the objective lens or primary mirror with the eyepiece, you have a telescope. Again, the basic ...