Titlebook: Choosing and Using a Dobsonian Telescope; Neil English Book 2011 Springer Science+Business Media, LLC 2011 Deep sky astronomical equipment

subcutaneous

書目名稱Choosing and Using a Dobsonian Telescope影響因子(影響力)




書目名稱Choosing and Using a Dobsonian Telescope影響因子(影響力)學科排名




書目名稱Choosing and Using a Dobsonian Telescope網(wǎng)絡公開度




書目名稱Choosing and Using a Dobsonian Telescope網(wǎng)絡公開度學科排名




書目名稱Choosing and Using a Dobsonian Telescope被引頻次




書目名稱Choosing and Using a Dobsonian Telescope被引頻次學科排名




書目名稱Choosing and Using a Dobsonian Telescope年度引用




書目名稱Choosing and Using a Dobsonian Telescope年度引用學科排名




書目名稱Choosing and Using a Dobsonian Telescope讀者反饋




書目名稱Choosing and Using a Dobsonian Telescope讀者反饋學科排名

免除責任

喚醒

Lamina

The 12- to 16-inch Dobssolution and light-gathering power. The gain in brightness is always more profound than the gain in resolution. If you step away from an 8-inch Dob and place your eye at the focus of a 16-inch instrument, the first thing you’ll notice is how much more bright (4-fold) the objects have become. Only af

貪心

Dysarthria

Dysarthria

Accessorizing Your Dob many of these telescope have such fast focal ratios (from f/3.3 to f/4), Seidel aberrations such as coma, distortion, and field curvature can be problematic, but a good optician ought to be able to reduce spherical aberration and astigmatism to very acceptable levels, even for a fast mirror. In thi

Incorruptible

輕推

Sketching and Imaging with Your Dob open clusters, and faint galaxies that skirt the great dark of interstellar space. The spectacular light-gathering power of even an 8-inch or 10-inch ‘scope has inspired many amateurs to try their hand at astronomical sketching and astrophotography. This chapter explores some of the extraordinary a

flaggy