Go / no go for deep skyGo / no go for deep sky imaging
What to photograph in August
19 deep-sky targets are at their best in August, meaning they cross the middle of the sky around midnight, plus 36 more that are still well placed in the evening or before dawn. Good first picks: North America Nebula, M39, Great Pegasus Cluster.
Lists are written for around 35°N, like the southern United States, southern Europe or Japan. The months work for both hemispheres, but southern observers will find northern targets low and southern ones high: each target page shows how high it climbs from your latitude. The best nights are around the new Moon, so check the dark sky calendar.
At their best in August
- North America NebulaBeginnerNGC 7000 · emission nebula · Cygnus · 2.0°
The North America Nebula in Cygnus looks like the continent, with a dark lane for the Gulf of Mexico.
- M39Beginneropen cluster · Cygnus · 32′
M39 is a large, sparse open cluster in Cygnus, roughly triangular, with bright stars spread widely.
- Great Pegasus ClusterBeginnerM15 · globular cluster · Pegasus · 18′
M15 is one of the densest globular clusters known.
- M2Beginnerglobular cluster · Aquarius · 16′
M2 is one of the larger and richer globular clusters, a ball of well over a hundred thousand stars in Aquarius.
- Dumbbell NebulaBeginnerM27 · planetary nebula · Vulpecula · 8′
The Dumbbell Nebula is a large, bright planetary nebula in the small constellation Vulpecula, the shell of gas thrown off by a dying star.
- Elephant's TrunkIntermediateIC 1396 · emission nebula · Cepheus · 2.8°
IC 1396 is a very large emission nebula in Cepheus surrounding a hot, bright star.
- Witch's Broom (West Veil)IntermediateNGC 6960 · supernova remnant · Cygnus · 1.2°
The Witch's Broom is the western arm of the Veil Nebula, the remains of a star that exploded in Cygnus roughly 10,000 to 20,000 years ago.
- East Veil NebulaIntermediateNGC 6992 · supernova remnant · Cygnus · 1.0°
The Eastern Veil Nebula is a bright arc of the Cygnus Loop, the expanding shell of a star that exploded thousands of years ago.
- Pelican NebulaIntermediateIC 5070 · emission nebula · Cygnus · 1.0°
The Pelican Nebula is a large emission nebula in Cygnus, separated from the North America Nebula by a band of dark dust.
- Crescent NebulaIntermediateNGC 6888 · emission nebula · Cygnus · 20′
The Crescent Nebula is a shell of glowing gas in Cygnus, blown out by the fierce wind of a Wolf-Rayet star.
- Iris NebulaIntermediateNGC 7023 · reflection nebula · Cepheus · 18′
The Iris Nebula is a blue reflection nebula in Cepheus, lit by a bright young star.
- Bubble NebulaIntermediateNGC 7635 · emission nebula · Cassiopeia · 15′
The Bubble Nebula in Cassiopeia is a bubble of gas blown by the strong wind of a hot young star.
- M52Intermediateopen cluster · Cassiopeia · 13′
M52 is a fairly rich open cluster in Cassiopeia, a modest sight on its own but conveniently located about half a degree from the Bubble Nebula (NGC 7635), so the two make a natural pair.
- Cocoon NebulaIntermediateIC 5146 · emission nebula · Cygnus · 12′
The Cocoon Nebula is a small, round blend of emission and reflection nebula in Cygnus, at the head of a long dark dust lane called Barnard 168.
- M71Intermediateglobular cluster · Sagitta · 7′
M71 is a small, loose globular cluster in Sagitta, so open in structure that for a long time it was debated whether it was a globular or a dense open cluster.
- Cooling Tower ClusterIntermediateM29 · open cluster · Cygnus · 7′
M29, the Cooling Tower Cluster, is a small open cluster in Cygnus, a few degrees from Sadr (Gamma Cygni).
- Wizard NebulaAdvancedNGC 7380 · emission nebula · Cepheus · 25′
The Wizard Nebula is a faint emission nebula in Cepheus surrounding a young open cluster, with dark lanes giving it a wizard-like shape.
- Fireworks GalaxyAdvancedNGC 6946 · spiral galaxy · Cepheus · 11′
The Fireworks Galaxy is a face-on spiral on the border of Cepheus and Cygnus that has hosted around ten recorded supernovae.
- M72Advancedglobular cluster · Aquarius · 6′
M72 is a faint, distant globular cluster in Aquarius.
Also well placed
Past or approaching their peak, so higher in the evening or before dawn.
- Andromeda GalaxyM31
- Lagoon NebulaM8
- Sagittarius Star CloudM24
- Double ClusterNGC 869
- M25M25
- M23M23
- M10M10
- M92M92
- Wild Duck ClusterM11
- M21M21
- Heart NebulaIC 1805
- Omega NebulaM17
- Eagle NebulaM16
- Pacman NebulaNGC 281
- Great Sagittarius ClusterM22
- Trifid NebulaM20
- Helix NebulaNGC 7293
- M110M110
- M26M26
- Silver Sliver GalaxyNGC 891
- M9M9
- M14M14
- M28M28
- M30M30
- M18M18
- M32M32
- M56M56
- M103M103
- Ring NebulaM57
- Triangulum GalaxyM33
- Question Mark NebulaNGC 7822
- NGC 6820NGC 6820
- Phantom GalaxyM74
- M75M75
- Little Dumbbell NebulaM76
- Cat's Eye NebulaNGC 6543