Similar to 嫦娥4号
775年の宇宙線飛来
774–775 carbon-14 spike7月ペガスス座流星群
PegasidsAAVSO (小惑星)
8900 AAVSOAbell 2029
Abell 2029Abell 262
Abell 262ACE (探査機)
Advanced Composition ExplorerACRIMSAT
ACRIMSATADS 16402
ADS 16402ADS 7251
ADS 7251AGILE
AGILE (satellite)AG星表
Astronomische Gesellschaft Katalog▲1 trendsAMOS (小惑星)
8721 AMOSAm星
Am starANS
Astronomical Netherlands SatelliteANS (小惑星)
9996 ANSANTARES
ANTARES (telescope)Ap/Bp星
Ap and Bp starsAPL (小惑星)
132524 APLAPM 08279+5255
APM 08279+5255ARIEL (宇宙望遠鏡)
ARIELArp 220
Arp 220Arp 273
Arp 273ASTE望遠鏡
Atacama Submillimeter Telescope ExperimentASTRO-G
Astro-GAT2018cow
SN 2018cowATLAS彗星
ATLAS彗星 (P/2019 LD2)
P/2019 LD2 (ATLAS)ATLAS彗星 (C/2019 Y4)
C/2019 Y4 (ATLAS)