D

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