R Corona borealis variable stars
/ / / R Corona borealis variable stars / /
R leonid variable star
/ / / R leonid variable star / /
Radio astronomy
/ / / Radio astronomy / /
Radio galaxy
/ / / Radio galaxy / /
Radio telescope
/ / / Radio telescope / /
Radiowave
/ / / Radiowave / /
Ramsden eyepiece
/ / / Ramsden eyepiece / /
Ranger
/ / / Ranger / /
Reccurent nova
/ / / Reccurent nova / /
Red dot finder
/ / / Red dot finder / /
Red dwarf
/ / / Red dwarf / /
Red shift
/ / / Red shift / /
Reddenning
/ / / Reddenning / /
Reflection nebula
/ / / Reflection nebula / /
Reflective telescope
/ / / Reflective telescope / /
Refractive telescope
/ / / Refractive telescope / /
Regolith
/ / / Regolith / /
Regulus
آلفا شیر / / / Regulus / /
reticulum
شبکه / / / reticulum / net / Ret
Retrograde motion
/ / / Retrograde motion / /
Rhea
/ / / Rhea / /
Rich field telescope
/ / / Rich field telescope / RFT /
Rigel
ستاره بتای جبار / / / Rigel / /
Right Ascension of the Ascending Node (RAAN)
طول گره صعودی / / / Right Ascension of the Ascending Node (RAAN) / RAAN / Longitude of ascending node
Right ascention(R.A.)
/ / / Right ascention(R.A.) / /
rita valley
/ / / rita valley / /
Ritchey chretien Telescope
/ / / Ritchey chretien Telescope / RC Telescope /
Roche limit
/ / / Roche limit / /
Roche lobe
/ / / Roche lobe / /
rosalind
/ / / rosalind / /
Rosetta nebula
/ / / Rosetta nebula / /
Rosetta Spacecraft
/ / / Rosetta Spacecraft / /
Rosseta nebula
/ / / Rosseta nebula / /
Rotating variable stars
/ / / Rotating variable stars / /
Royal astronomer
/ / / Royal astronomer / /
RR Lyrae variables
/ / / RR Lyrae variables / /
RV Tauri variable stars
/ / / RV Tauri variable stars / /
Alpha Centauri (Rigil kentaurus, Toliman)
/ / / Alpha Centauri (Rigil kentaurus, Toliman) / Rigil kentaurus /
aries
بز / hamal / / aries / ram / Ari
M57
سحابی حلقه (حلقوی) / / / M57 / Ring nebula /
Symbiotic novae
ستاره های متغییر RR تلسکوپی / / / Symbiotic novae / RR Telescopii variables /
