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en:ost:telescope:mobile [2024/02/20 07:06] – [130mm Apochromat from Teleskop-Service] rhainichen:ost:telescope:mobile [2026/04/02 06:21] (current) – rhainich
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 Besides our fixed main telescope, the [[en:ost:telescope:grunddaten|CDK20 from Planewave]], our telescope family currently includes the following telescopes: Besides our fixed main telescope, the [[en:ost:telescope:grunddaten|CDK20 from Planewave]], our telescope family currently includes the following telescopes:
  
 +|< 60% - >|
 +^ Telescope         ^ Potential use cases |
 +| C14               | Deep sky & planets |
 +| C11               | Deep sky, planets & white-light solar observations with a solar filter |
 +| C8                | White-light solar observations with a solar filter |
 +| RASA 11 V2        | Deep sky |
 +| 130mm Apochromat  | Deep sky & solar observations with the Herschel prism |
 +| Coronado Hα solar | Solar observations in Hα light |
 +| Heliostar 76 Hα   | Solar observations in Hα light |
  
 ===== Schmidt Cassegrain telescopes from Celestron ===== ===== Schmidt Cassegrain telescopes from Celestron =====
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 ^ Mirror coating     | StarBright™ XLT multicoating | ^ Mirror coating     | StarBright™ XLT multicoating |
 ^ Fastar compatible  | No | ^ Fastar compatible  | No |
 +^ Compatible mounts | [[en:ost:telescope:c11_bedienung|CGE-PRO]], CGX-L, [[en:ost:telescope:eq8 | EQ8-R PRO]] |
  
-The C14 is our largest Schmidt Cassegrain telescope. It can be mounted on either the [[en:ost:telescope:c11_bedienung|CGE-Pro]] or the CGX-L mount from Celestron. Before we got the CDK-20, the C14 used to be our main fixed telescope. The C14 cannot be used for solar observations. The setup and operation is basically equivalent to the [[en:ost:telescope:c11_bedienung|C11]]. The setup of the CGX-L differs only in a few points from the CGE-Pro. However, the CGX-L is somewhat easier to handle than the CGE-Pro.+The C14 is our largest Schmidt-Cassegrain telescope. Before the CDK-20, the C14 was our primary fixed telescope. The C14 cannot be used for solar observations.  
 +/* However, the CGX-L is somewhat easier to handle than the CGE-Pro. */
 </WRAP> </WRAP>
 </WRAP> </WRAP>
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 ^ Mirror coating     | StarBright™ XLT multicoating | ^ Mirror coating     | StarBright™ XLT multicoating |
 ^ Fastar compatible  | Yes | ^ Fastar compatible  | Yes |
 +^ Compatible mounts | [[en:ost:telescope:c11_bedienung|CGE-PRO]], CGX-L, [[en:ost:telescope:eq8 | EQ8-R PRO]]  |
  
-The C11 can be mounted on both Celestron's CGE-Pro and CGX-L mounts. We have a sun filter for the C11, so it can be used for solar observations. The [[en:ost:telescope:c11_bedienung|setup and operation of the C11 and the CGE-Pro]] is described in a separate article. The setup of the CGX-L differs only in a few points from the CGE-Pro. However, the CGX-L is somewhat easier to handle than the CGE-Pro.+We have a solar filter for the C11 so it can be used for solar observations. 
 </WRAP> </WRAP>
 </WRAP> </WRAP>
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 ^ Mirror Coating     | StarBright™ XLT Multi-coating | ^ Mirror Coating     | StarBright™ XLT Multi-coating |
 ^ Fastar compatible  | Yes | ^ Fastar compatible  | Yes |
 +^ Compatible mounts | [[en:ost:telescope:c8_bedienung|Advanced GT]] |
  
-The C8 comes with the Advanced GT mount from Celestron. As for the C11, we also have a solar filter for the C8. The [[en:ost:telescope:c8_bedienung|setup and operation of the C8 and the Advanced GT]] is described in a separate article. +As for the C11, we also have a solar filter for the C8.
 </WRAP> </WRAP>
 </WRAP> </WRAP>
  
 +===== Rowe-Ackermann Schmidt Astrograph =====
 +
 +==== RASA 11 V2 ====
 +
 +<WRAP group>
 +<WRAP half column>
 +[{{ ost:rasa:rasa_office.jpg | RASA 11 on the CGX-L}}]
 +
 +</WRAP>
 +<WRAP half column>
 +|< 100% - >|
 +^ Type                  | Rowe-Ackermann Schmidt Astrograph |
 +^ Manufacturer          | Celestron |
 +^ Aperture              | 279 mm |
 +^ Focal Length          | 620 mm |
 +^ f/Ratio               | 2.2 |
 +^ Spatial resolution    | 0.49″ |
 +^ Length of the tube    | 84 cm |
 +^ Image Circle diameter | 43.3 mm | 
 +^ Useable field         | 52 mm |
 +^ Weight                | 19,5kg |
 +^ Mirror coating        | StarBright™ XLT multicoating |
 +^ Compatible mounts     | [[en:ost:telescope:c11_bedienung|CGE-PRO]], CGX-L, [[en:ost:telescope:eq8 | EQ8-R PRO]]  |
 +
 +In our family of telescopes, this is the fastest telescope with the largest field of view and is therefore most commonly used for wide field observations. The Baader UFC (Universal Filter Changer) is available for this telescope with narrow band high speed filters as well as a complete set of SOLAN/SDSS filters.
 +
 +</WRAP>
 +</WRAP>
  
 ===== Refracting telescopes ===== ===== Refracting telescopes =====
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 ^ Spatial resolution | 0.89″ | ^ Spatial resolution | 0.89″ |
 ^ Weight             | 11kg | ^ Weight             | 11kg |
 +^ Compatible mounts | [[en:ost:telescope:c11_bedienung|CGE-PRO]], CGX-L, [[en:ost:telescope:eq8 | EQ8-R PRO]]  |
  
-Our triplet [[en:ost:telescope:ts-apo | apochromatic refractor]] offers a wide field of view. The scope is usually used with the CGX-L. The setup and operation is almost identical to the [[en:ost:telescope:c11_bedienung|C11]]. The APO can also be used with the CGE-Pro.+Our [[en:ost:telescope:ts-apo | apochromatic refractor]] offers a large field of view. For this telescope we have both a solar filter and a Herschel prism for solar observations.
  
 </WRAP> </WRAP>
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 ^ ::              | Double Stacked | ^ ::              | Double Stacked |
 ^ ::              | Sol Ranger Sunfinder | ^ ::              | Sol Ranger Sunfinder |
 +^ Compatible mounts | [[en:ost:telescope:c8_bedienung|Advanced GT]] |
 +
 +The [[en:osst|OSST]] can be mounted on Celestron's Advanced-GT mount or on one of the other telescopes. 
 +</WRAP>
 +</WRAP>
 +
 +==== Sky-Watcher Heliostar 76 Hα ====
 +
 +<WRAP group>
 +<WRAP half column>
 +[{{ ost:heliostar:sky-watcher_heliostar_76_croped.jpg | The Sky-Watcher Heliostar 76 Hα on the Advanced GT}}]
 +</WRAP>
 +<WRAP half column>
 +|< 100% - >|
 +^ Manufacturer      | Sky-Watcher |
 +^ Series            | Heliostar |
 +^ Aperture          | 76mm |
 +^ Focal length      | 630mm |
 +^ f/Ratio           | 8,3 |
 +^ Bandwidth         | < 0.55 Å |
 +^ Solar image size  | 6 mm |
 +^ Tube length     | 600 mm |
 +^ Weight            | 3,8 kg |
 +^ Connection     | 1,25'' |
 +^ Other             | Trifid tuner |
 +^ :::               | Solis etalon |
 +^ :::               | Heliostar solar finder |
 +^ Compatible mounts | [[en:ost:telescope:c8_bedienung|Advanced GT]] |
 +
 +The [[en:ost:telescope:heliostar76|Heliostar 76]] can be mounted on Celestron’s Advanced GT mount, or piggy-backed onto one of the other telescopes. 
  
-The OSST can be mounted on the Advanced-GT mount from Celestron. More details about the [[en:osst|OSST, its setup and operation]] can be found in a separate article. 
 </WRAP> </WRAP>
 </WRAP> </WRAP>
  • en/ost/telescope/mobile.1708412806.txt.gz
  • Last modified: 2024/02/20 07:06
  • by rhainich