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Telescopes |
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Celestron 235mm SCT/CI-700
(to January 2004) OTA and Mount No longer owned |
Celestron G-9.25 235mm SCT
on CI-700 Equatorial Mount
(used for observing from January 2003 to January 2004) |
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OTAs: |
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Celestron G - 9.25-in
(235mm) f/10.0 Schmidt-Cassegrain telescope |
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Orion 120ST (120mm f/5) Refractor |
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Mounts: |
Celestron
CI-700 Manual Alignment (until January 2004) |
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Celestron CG-5
Equatorial Head (self Re-built) with Celestron
Dual Axis Drive and Oak Tripod (Al's Astro) |
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Eyepieces: |
| In 235mm SCT |
f/10x |
x2.5* |
FoV (deg) |
f/6.3x |
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40mm
Celestron NexStar Plossl |
59 |
147.5 |
0.83 |
-- |
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32mm
Televue Plossl |
73 |
182.5 |
0.68 |
46 |
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25mm
Celestron Plossl |
94 |
235 |
0.52 |
59 |
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18mm
Celestron Ultima Plossl |
131 |
262 |
0.38 |
82 |
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14mm TeleVue Radian |
168 |
420 |
0.36 |
106 |
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10mm
Celestron Plossl |
235 |
587.5 |
0.21 |
148 |
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7mm Vixen Lanthanum |
336 |
-- |
-- |
211.5 |
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* With TeleVue PowerMate 2.5 |
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Corrector Lens: |
Celestron f/6.3
Reducer-Corrector lens (reduces effective focal length
from 2350mm to 1480.5mm) |
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Filters: |
Lumicon Deep
Sky Filter (DSF) (1.25-in)
Thousand Oaks Oxygen-III Filter (O-III) (1.25-in) |
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Celestron 280mm SCT/CGE-1100 |
Celestron 280mm CGE-1100 at Big Bend National Park,
January 2006
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| OTAs: |
Celestron 11-in (280mm) f/10.0
Schmidt-Cassegrain telescope
(Carbon-fiber tube) |
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Mounts: |
Celestron, CGE Nexstar Equatorial Mount (Obtained
January 2004) |
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| In 280mm SCT |
f/10x |
x2.5* |
FoV (deg) |
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40mm
UA Konig |
70 |
175 |
1.0 |
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35mm Televue Panoptic |
80 |
200 |
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32mm
Televue Plossl |
87 |
218 |
0.57 |
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24mm
Televue Panoptic |
112 |
280 |
0.60 |
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19mm
Televue Panoptic |
147 |
368 |
0.32 |
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14mm TeleVue Radian |
200 |
500 |
0.3 |
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12mm TeleVue Radian |
240 |
600 |
0.25 |
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10mm
Celestron Plossl |
280 |
700 |
0.18 |
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9mm Televue Nagler |
311 |
-- |
0.26 |
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7mm Vixen Lanthanum |
400 |
-- |
0.11 |
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* With TeleVue PowerMate 2.5 |
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AT8IN Imaging Newtonian |
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OTA: |
AstroTech 8-inch (200mm) f/4
Newtonian telescope
(aluminium
tube) |
| Mount: |
Celestron CGE |
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This setup includes a Honis-modified Canon XSi DSLR with a Baader Multipurpose Coma
Corrector and an ST80 refractor, piggyback mounted with AstroTech 100mm rings, with an Orion Starshooter
Autoguider.
Stock telescope collimation hardware and
ring clamps have been replaced with a custom kit by Kerry
Hanna, Issaquah, Washington. |
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