Sky Atlas
A curated catalog of deep-sky objects visible from the northern hemisphere. Best months, magnitudes, and constellation context.
RA 0h → 24hDec +90° → −90°Zoom 1.0×
M31Andromeda
Andromeda Galaxy
Spiral galaxy
Magnitude3.4
Distance2.54 Mly
Size3.2° × 1.0°
BestSep – Jan
RA 00h 42m 44s · Dec +41° 16′ 09″
M42Orion
Orion Nebula
Emission nebula
Magnitude4
Distance1.34 kly
Size85′ × 60′
BestNov – Mar
RA 05h 35m 17s · Dec −05° 23′ 28″
M45Taurus
Pleiades
Open cluster
Magnitude1.6
Distance444 ly
Size110′
BestOct – Apr
RA 03h 47m 24s · Dec +24° 07′ 00″
M57Lyra
Ring Nebula
Planetary nebula
Magnitude8.8
Distance2.57 kly
Size1.4′ × 1.0′
BestJun – Oct
RA 18h 53m 35s · Dec +33° 01′ 45″
M13Hercules
Hercules Cluster
Globular cluster
Magnitude5.8
Distance22.2 kly
Size20′
BestMay – Sep
RA 16h 41m 41s · Dec +36° 27′ 35″
M51Canes Venatici
Whirlpool Galaxy
Spiral galaxy
Magnitude8.4
Distance23.5 Mly
Size11′ × 7′
BestMar – Jul
RA 13h 29m 53s · Dec +47° 11′ 43″