At current estimates, the universe contains 70,000,000,000,000,000,000,000 stars! Backyard astronomy allows you to see some of these beautiful sites. A first telescope is always an amazing thing. You get to learn and see new things. As you read this article, discover more about buying your first telescope for backyard astronomy.
If you have never purchased a telescope in the past, then you are perhaps wondering how to buy telescopes. Even though telescopes are scientific instruments, there is nothing stopping you from buying your first time telescope and getting the most out of astronomy.
Before buying your first telescope, you will want to consider some things first. Ask yourself how much of an interest you have in astronomy. Obviously a bigger interest will mean that you can invest more into buying telescopes, than you would, if you simply want to touch upon astronomy.
Setting a budget of $200 to $500, you can expect to get good sights of objects such as our Moon, the planets, including Mars, Jupiter and Saturn. Your first telescope can also allow you to see deep space objects, such as nebula, and other galaxies.
There are telescopes for sale with price tags of around $100 or less, but I strongly suggest […]
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Originally dubbed the Next Generation Space Telescope, what is now known today as the James Webb Space Telescope is the successor to the Hubble Space Telescope. Scheduled to launch sometime in 2013, the Next Generation Space Telescope is being designed to be bigger and better than the Hubble with many more capabilities.
The James Webb Space Telescope (JWST) is a large, infrared-optimized space telescope. JWST will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy. It will peer through dusty clouds to see stars forming planetary systems, connecting the Milky Way to our own Solar System. The next generation in space telescopes will have instruments that are designed to work primarily in the infrared range of the electromagnetic spectrum, with some capability in the visible range.
JWST will have a large mirror, 6.5 meters (21.3 feet) in diameter and a sunshield the size of a tennis court. Both the mirror and sunshade won’t fit onto the rocket fully open, so both will fold up and open only once it is in outer space. JWST will reside in an orbit about 1.5 million km (1 million miles) from the Earth.
When you […]
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Saturn is the most visually striking planet in the Solar System. It is the second largest gas giant behind Jupiter and is surrounded by a spectacular series of rings. Saturn is the sixth furthest planet from the Sun at 1,400 million km away and is named after the Roman God Saturnus. The rings are made from icy particles and dust, Saturn has around 60 moons as well as the only moon with a stable atmosphere, Titan.
Saturn has a small core made from ice and rock with the rest of the planet being chiefly hydrogen and helium. There are thought to be liquid metallic hydrogen and liquid hydrogen and helium layers surrounding the core before the gaseous outer layers.
The inside of Saturn can reach extremely hot temperatures, with the interior temperature of 11,700 degrees C thought to be due to the Kelvin-Helmholtz mechanism of gravitational compression. The atmosphere of Saturn is not as strikingly active as the one on Jupiter, but it does display some of the same characteristics. The gases have a banded appearance and there is evidence of cloud layers and storms.
The rings of Saturn initially were a great source of confusion for early astronomers, lacking the high-powered telescopes […]
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