Dall kirkham
/ / / Dall kirkham / DK telescope /
Danjon limit
/ / / Danjon limit / /
Dark energy
/ / / Dark energy / /
Dark matter
/ / / Dark matter / /
Dark nebula
سحابی جذبی / / / Dark nebula / /
dawn
/ / / dawn / /
Day
/ / / Day / /
Daylight crescent
/ / / Daylight crescent / /
Declination(Dec.)
/ / / Declination(Dec.) / /
Deep space-1
/ / / Deep space-1 / /
Degenerate pressure
/ / / Degenerate pressure / /
deimos
/ / / deimos / /
delphinus
/ / / delphinus / dolphin / Del
Delta scuti stars
/ / / Delta scuti stars / /
Delta T
/ / / Delta T / /
Deneb
ذنب الدجاجه(zanab addajjaja) / ردف(redef) / / Deneb / /
desdemona
/ / / desdemona / /
despoina
/ / / despoina / /
Diagonal
/ / / Diagonal / /
Diamond ring
دانه های تسبیح بیلی / / / Diamond ring / Bailey's Beads /
Diffraction
/ / / Diffraction / /
dione
/ / / dione / /
Diotima asteroid
/ / / Diotima asteroid / /
Discovery space shuttle
/ / / Discovery space shuttle / /
Dobsonian mounting
/ / / Dobsonian mounting / /
Doppler effect
/ / / Doppler effect / /
dorado
/ / / dorado / sword fish / Dor
DQ Herculis variables
/ / / DQ Herculis variables / /
Dr. yosef sabooti
/ / / Dr. yosef sabooti / /
draco
تنین / tennin / / draco / dragon / Dra
Draconitic moon
ماه اژدهایی / / / Draconitic moon / /
Drag
/ / / Drag / /
Dwarf galaxy
/ / / Dwarf galaxy / /
Dwarf nova
/ / / Dwarf nova / /
Dwarf planet
/ / / Dwarf planet / /
Dwarf star
/ / / Dwarf star / /
Dynamical time(DT)
/ / / Dynamical time(DT) / /
Dynamo effect
/ / / Dynamo effect / /
Dysnomia
/ / / Dysnomia / /
columba
حمامه / / / columba / dove / Col
Geodetic effect
/ / / Geodetic effect / de Sitter effect /
m27(dumbell nebula)
/ / / m27(dumbell nebula) / Dumbbell Nebula /
Sirius
آلفا سگ اکبر / شباهنگ / تیشتر / Sirius / Dog star /
