Star Ware: The Amateur Astronomer's Guide to Choosing, Buying ...

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In the Beginning . . . 13 imented by slightly modifying the lens curves suggested by Dollond, which resulted in the highest-quality objective yet created. In Fraunhofer’s design, the front surface is strongly convex. The two central surfaces differ slightly from each other, requiring a narrow air space between the elements, while the innermost surface is almost perfectly flat. These innovations bring two wavelengths of light across the lens’s full diameter to a common focus, thereby greatly reducing chromatic and spherical aberration. The world’s largest refractor is the 40-inch f /19 telescope at Yerkes Observatory in Williams Bay, Wisconsin. This mighty instrument was constructed by Figure 2.4 Telescopes come in all different shapes and sizes: (a) achromatic refractor, (b) Gregorian reflector, (c) Newtonian reflector, (d) Cassegrain reflector, (e) Schmidt catadioptric telescope, (f) Maksutov-Cassegrain telescope, and (g) Schmidt-Cassegrain telescope.
14 Star Ware Figure 2.4 continued Alvan Clark and Sons, Inc., America’s premier telescope maker of the nineteenth century. Other examples of the Clarks’ exceptional skill include the 36-inch at Lick Observatory in California, the 26-inch at the U.S. Naval Observatory in Washington, D.C., and many smaller refractors at universities and colleges worldwide. Even today, Clark refractors are considered to be among the finest available. The most advanced modern refractors offer features that the Clarks could not have imagined. Apochromatic refractors effectively eliminate just about all aberrations common to their Galilean, Keplerian, and achromatic cousins. More about these when we examine consumer considerations in chapter 3. Reflecting Telescopes But there is more than one way to skin a cat. The second general type of telescope utilizes a large mirror, rather than a lens, to focus light to a point—not
Page 2 and 3: STAR WARE The Amateur Astronomer’
Page 4: Contents Preface to the Third Editi
Page 7 and 8: vi Preface to the Third Edition Not
Page 9 and 10: viii Acknowledgments You, dear read
Page 11 and 12: 2 Star Ware Figure 1.1 The basic pr
Page 13 and 14: 4 Star Ware they are! It’s true t
Page 15 and 16: 6 Star Ware Figure 1.2 The Airy dis
Page 17 and 18: 8 Star Ware Table 1.3 Dawes’ Limi
Page 19 and 20: 10 Star Ware Figure 2.1 Artist’s
Page 21: 12 Star Ware Figure 2.3 Spherical a
Page 25 and 26: 16 Star Ware an upright image, but
Page 27 and 28: 18 Star Ware Sir William Herschel,
Page 29 and 30: 20 Star Ware Cassegrains are design
Page 32 and 33: 3 So You Want to Buy a Telescope! S
Page 34 and 35: So You Want to Buy a Telescope! 25
Page 60: So You Want to Buy a Telescope! 51
Page 63 and 64: 54 Star Ware higher-power glasses a
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64 Star Ware evident around brighte
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66 Star Ware however, at the amount
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68 Star Ware Polaris FMT binoculars
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70 Star Ware Figure 4.4 Orion’s V
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72 Star Ware Finally, Parks offers
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74 Star Ware may find too heavy to
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76 Star Ware more thoroughly, but i
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78 Star Ware Fujinon, the patented
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80 Star Ware finderscopes and a ple
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82 Star Ware Refractors are further
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84 Star Ware are sharp and contrast
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86 Star Ware tripod. Slow-motion co
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88 Star Ware for instance, is the e
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90 Star Ware angles to one another
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92 Star Ware Meade has also recentl
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94 Star Ware they are almost always
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96 Star Ware 102’s performance ca
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98 Star Ware eyepieces at any one t
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100 Star Ware and free of spurious
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102 Star Ware may select from their
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104 Star Ware but double-check on y
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106 Star Ware I set earlier, the Ra
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108 Star Ware absolutely textbook p
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110 Star Ware As we will see below,
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112 Star Ware eyepiece that comes w
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114 Star Ware therefore, their vers
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116 Star Ware The only optical prob
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118 Star Ware German equatorial mou
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120 Star Ware Figure 5.3 The NGT-12
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122 Star Ware As the name implies,
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124 Star Ware Meade also offers two
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126 Star Ware beefier version. All
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128 Star Ware eyepiece of the 20-in
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130 Star Ware All four XT telescope
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132 Star Ware In my opinion, if you
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134 Star Ware rings (an important c
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136 Star Ware Figure 5.5 The 4.25-i
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138 Star Ware can be built around e
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140 Star Ware problem on damp night
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142 Star Ware axis. Takahashi descr
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144 Star Ware The Classical design
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146 Star Ware Takahashi also offers
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148 Star Ware In practice, the view
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150 Star Ware you upgrade to that 8
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152 Star Ware 40,000 objects (50,00
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154 Star Ware any means. The 26-mm
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156 Star Ware 6 � 30 straight-thr
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158 Star Ware reflector of similar
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160 Star Ware off-axis, as with mos
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162 Star Ware employee. I thought t
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164 Star Ware Meade Instruments. Th
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166 Star Ware Perhaps the Mak’s b
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168 Star Ware manufacturer states t
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Table 5.2 Telescope Mounts 170 Manu
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Table 5.2 (continued) 172 Manufactu
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174 Star Ware indicates German equa
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176 Star Ware on “street” price
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178 Star Ware had been received and
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180 Star Ware Table 5.3 Some of the
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182 Star Ware Figure 6.1 A selectio
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184 Star Ware Table 6.1 Telescope A
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186 Star Ware (a) Narrow Field of V
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188 Star Ware of the brighter objec
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190 Star Ware Kellner. It took over
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192 Star Ware the 55-mm requires a
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194 Star Ware The consensus from al
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196 Star Ware quite sharp with exce
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198 Star Ware very tall. The 10-mm,
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200 Star Ware Cheapest of the cheap
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202 Star Ware 8 mm, enabling it to
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204 Star Ware Table 6.3 Barlow Lens
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206 Star Ware Okay, are they worth
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208 Star Ware Figure 6.5 Celestron
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7 The Right Stuff Congratulations o
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The Right Stuff 213 Some telescopes
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The Right Stuff 215 Table 7.1 (cont
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The Right Stuff 217 Table 7.2 Unity
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The Right Stuff 219 Figure 7.3 Tran
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The Right Stuff 221 either a narrow
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The Right Stuff 223 Table 7.4 (cont
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The Right Stuff 225 of the Sun (foc
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The Right Stuff 227 Table 7.6 Solar
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sunspot intricacies, and erupting p
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The Right Stuff 231 Tectron, AstroS
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The Right Stuff 233 view from the s
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The Right Stuff 235 Rubber Eyecups
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The Right Stuff 237 just like regul
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The Right Stuff 239 Amateur Astrono
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The Right Stuff 241 Introductory Bo
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The Right Stuff 243 Miscellaneous R
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The Right Stuff 245 Digital Setting
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The Right Stuff 247 Celestron’s A
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The Right Stuff 249 Table 7.12 Sugg
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The Right Stuff 251 Table 7.13 Film
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The Right Stuff 253 Figure 7.8 Came
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of imaging you are interested in do
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The Right Stuff 257 dynamic range i
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The Right Stuff 259 that the ST-10E
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The Right Stuff 261 to be desired,
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The Right Stuff 263 Flip Mirrors On
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The Right Stuff 265 No doubt about
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The Right Stuff 267 Table 7.15 Astr
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The Right Stuff 269 Figure 7.11 Tut
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The Right Stuff 271 Table 7.16 Anti
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The Right Stuff 273 Kendrick Astro
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The Right Stuff 275 The Sky / mount
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The Right Stuff 277 Although the mo
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The Right Stuff 279 Pro Domes come
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Figure 7.14 The Kendrick Astro Inst
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8 The Homemade Astronomer Amateur a
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Table 8.1 QuickCam Astro-Imager Par
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The Homemade Astronomer 287 image o
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Figure 8.5 Plans for the Kratz char
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The Homemade Astronomer 291 sily ma
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The Homemade Astronomer 293 drawing
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The Homemade Astronomer 295 Figure
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The Homemade Astronomer 297 a 0.25-
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The Homemade Astronomer 299 Once yo
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The Homemade Astronomer 301 Figure
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The Homemade Astronomer 303 as well
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Table 8.7 Planet Blocker Parts List
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The Homemade Astronomer 307 Table 8
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The Homemade Astronomer 309 Dremel
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Table 8.9 Crombie Observing Chair P
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The Homemade Astronomer 313 back in
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Figure 8.22 Plans for the Trott min
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Figure 8.23 P.J. Anway’s Lookum O
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Table 8.11 Lookum Observatory Parts
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9 Till Death Do You Part If this we
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Till Death Do You Part 323 Having a
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Till Death Do You Part 325 Consult
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Till Death Do You Part 327 Some clo
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Till Death Do You Part 329 on a lar
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Till Death Do You Part 331 houette
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Till Death Do You Part 333 To learn
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Till Death Do You Part 335 substant
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Till Death Do You Part 337 in size
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Till Death Do You Part 339 carton.
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10 A Few Tricks of the Trade A tele
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A Few Tricks of the Trade 343 To he
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A Few Tricks of the Trade 345 well
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A Few Tricks of the Trade 347 Figur
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Table 10.1 (continued) Oregon Star
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A Few Tricks of the Trade 351 the s
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Tri M33 A Few Tricks of the Trade 3
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A Few Tricks of the Trade 355 Polar
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A Few Tricks of the Trade 357 even
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A Few Tricks of the Trade 359 on th
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A Few Tricks of the Trade 361 Altho
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A Few Tricks of the Trade 363 on. I
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A. Binoculars Appendix A Specs at a
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Appendix A 367 Aper- Field of Exit
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Appendix A 369 Aper- Field of Exit
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Appendix A 371 Total Focal Tube Wei
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Appendix B Eyepiece Marketplace Foc
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Appendix B 385 Focal Apparent Compa
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Appendix C The Astronomical Yellow
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Campmor 810 Route 17 North, Paramus
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Web site: http://www.dewshields.com
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Product(s): Binoculars, reflectors,
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Web site: http://www.starlight-xpre
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United States Arizona Astronomy Sho
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New Hampshire Rivers Camera Shop 45
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Canada Alberta The Science Shop 316
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Phone: 61-02-9211-1606 316 St. Paul
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Appendix D An Astronomer’s Surviv
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412 Star Ware Telescopes and Equipm
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414 Star Ware Include the To Join,
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Star Ware Reader Survey To help pre
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Any particular likes or dislikes? (
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422 Index D&G Optical refractors, 8
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424 Index reflecting telescopes. Se
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