The truss tube for Dobsonian telescope… and surroundings

SOLIDITY’ = PREROGATIVE ESSENTIAL OF LATTICE The need for unity in the transportability of Dobson telescopes (characterized by a reduced frame ingeniously essentials despite the large aperture of the primary mirror Newton) has meant that the optical tube of such instruments, must obviously having a larger diameter for just contents the big primary mirror, It could be replaced

Simple collapsible, pop-up light or Dew shield for dobson telescopes

The precautions needed to be taken in the nights of stargazing are notoriously two: The shield of any stray light that could be inserted in the optical observation path, The isolation of the inside of the telescope than the outside air currents that would promote the formation of dew condensation on the primary and secondary mirrors. There is also a third trick,