Building a Newtonian Astrograph

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Materials & ComponentsSpider Vane – Protostar- Straight 4-vane- Built-in secondary offset- Internal dew heaterSecondary Mirror – Protostar- 2.60” minor axis- ULS Quartz- Interferogram says 1/14th
Materials & ComponentsFocuser – Moonlight Crayford- 3-point compression ring- Hi-Res Stepper Motor- Cercis Controller- Supports 2 focusers- Supports 2 temp probes and profiles
Page 1 and 2: Building aNewtonian AstrographCurt
Page 3 and 4: What is an ‘astrograph’ ?An ast
Page 5 and 6: Examples of currently mass-produced
Page 11 and 12: NEWT 2.5Design Tools
Page 13 and 14: Design Highlights….a telescope de
Page 15 and 16: Design HighlightsPlanning for a ful
Page 17 and 18: Design HighlightsPlanning for a ful
Page 19: Materials & ComponentsTelescope Tub
Page 23 and 24: Fabrication of Custom Parts
Page 25 and 26: Fabrication of Custom Parts
Page 27 and 28: Assembly
Page 33 and 34: First Photographic ResultsNGC5139 -
Page 35 and 36: Finishing Touches
Page 37 and 38: What’s Next?Currently saving up f
Page 39: Thank YouQuestions?

Building a Newtonian Astrograph

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