Looking at Planet ? A Beginners Primer Astronomy

The observation of the planets in our solar system with a telescope is a fine piece of amateur astronomy. And unlike other forms of observation, such as deep-sky, it can be carried out from the center of a city and country. No travel required. If it is clear (a rarity here in the Pacific Northwest) can quickly begin to see one of my telescopes on the balcony. So, here are some tips on how to show our neighbors in the solar system.

Telescope

AllTelescope of good quality is more than 60 millimeters (about 2.5 inches) will show some details on Jupiter, the phases of Venus and Mercury and Saturn's rings. If you go just a quick look with my 90mm APO refractor. But you can get a better display with 150 mm (6 inches) and larger instruments. This is because the planets are small, and we need to refine the details of using high power. And as best you can use 50X per inch of aperture, you can see the need for the size.

The currentType of telescope is of minor importance, but personally I like to reflectors or apochromatic (color green) using refractors. Some excellent choice for a planetary scale are as follows:

? A Maksutov Cassegrain 150 mm or more
? A Newtonian reflector of 150 mm or larger
? A Schmidt-Cassegrain 200 mm or larger (this is what I use at the time)
? An apochromatic refractor of 130 mm or more (albeit expensive)

But do not despair if your goal is to not be listed here. Remembertelescope is best used to use, so what you have. There are ways to squeeze more performance out of each look.

Mount

One word is all that is really needed here, ever. Until it is stable, and nothing on the other hand pushing them together, a mountain Dobson, or a non-motorized alt-az work well without slow-motion controls. Of course it is irritating, wait until the picture is stable again, after you move along the scale. Therefore, a well built, sturdy, motorized wall mountis much nicer when the planet by investing in your field of vision, unless you want to view. But again with what you have is important.

Eyepieces

Since planets are small, a lot of magnification is required to note details. But you can not overdo it either. On the best nights, with the most stable sky is the maximum magnification of 50X is used for each inch of aperture (8-inch frame, 400X) to use. But the nights are few and far between. MostlyYour maximum magnification of about 25X per inch to be found. On my 8-inch I have my eye on the Orthoscopic for planetary work of a 9mm, which uses about 222x in this area. This combination has given me a wonderful view of Jupiter, Saturn and Mars.

Note that expensive eyepieces. You can, but some good all-round quality eyepieces and Barlow and able to give you years of visual pleasure. But when high-contrast, high-detail views, what you want I suggestOrthoscopic a few eyes. You can ever had for about $ 100. Highly recommended.

A quick word magnification. To understand the magnifying eyepiece of a telescope provides a data on the use of the following formula.

Magnification = telescope focal length divided by the focal length eyepiece. So my 8-inch Schmidt-Cassegrain telescope has a focal length of 2000mm. If my 9 mm Ortho, 2000 / 9 = 222.22X.

If I am the same eye with my 91 mm refractor thatwe get? F has a ratio of f6.6. So, 6.6 x 91 mm = 600 so a focal length of 600 Then divided by 600 mm to 9 mm = 66.66X.

Eyepiece

Although optional, a series of color filters really help to bring different details on the planet. Here are some filters that I can interpret their Wratten numbers.

? No. 12 Yellow ? blue deepens and highlights of red and yellow on Jupiter and Saturn, also improves the surface structure of Mars. Better than the 150 mm or more areas.

? Blue # 80A ? ThisFilter can actually pull the ribbon detail on the clouds of Jupiter and the Great Red Spot. Profit on Saturn, improving contrast.

? Green # 58 ? Adds contrast and detail rendition, to the band structure of Jupiter and Saturn. Also useful on Mars polar caps. Better use of 200mm or more.

? # 25A Red ? Ideal for higher contrast filter Jupiter. It's really belt "pop out". Mars also very nice. Recommended only for areas greater than 200 mm. O

? No. 21 Orange ? Thea bit "the same as the # 25 red, not just good, but can be used with smaller areas.

Make yourself comfortable

Be comfortable making any kind of observation, much better. I have two different chairs, which I use for observation. Also be sure right clothes. Remember that standing still so you need warm clothes than you think.

I hope you enjoy your journey through our solar system with the telescope. Try as you develop your experience in learning to draw what youto see or even get in planetary images. The sky really is the limit.

Source: http://education-astronomy.chailit.com/looking-at-planet-a-beginners-primer-astronomy.html

scarlett johansson gambit clint eastwood napoleon bonaparte larry bird khan academy united states of tara