Astronomy Hacks: Tips and Tools for Observing the Night Sky

Index

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z]

dark adaptation 2nd 3rd 4th 5th 6th 7th

     eyes

     fallacies concerning

     green light and

     notebook computers 2nd 3rd 4th

         desktop themes

         red film

     partial or single-eye adaptation

     pupil diameter and

     red light and

DarkAdapted gamma-control utility

date epoch 2nd

de Lalande

Dec (Declination)

Declination (Dec)

Deepsky Astronomy Software

dehydration

Denver observing chairs

department store telescopes

determining field of view

    optical finders

         apparent field of view (AFoV) method

         field-stop diameter method

digital setting circles (DSCs) 2nd

digital voice recorders (DVRs)

diopter adjustment

Dobson

Dobsonian telescopes 2nd 3rd 4th 5th 6th 7th 8th 9th

     altitude hubs

     bearing mounts 2nd 3rd 4th 5th 6th 7th

     center-spotting mirrors 2nd

     cleaning primary mirrors 2nd 3rd 4th 5th 6th

     collimation frequency

     contrast

     counterweighting

     diffraction spikes

     improving azimuth motions with milk jug washers 2nd 3rd

     mounts

double stars

Downey

drift testing 2nd 3rd 4th 5th

drummer's thrones

DSOs (deep-sky objects)

     observing 2nd

         filters 2nd 3rd 4th 5th 6th 7th 8th 9th

DVRs (digital voice recorders)

dwarf novae