🔭 DSO Targets Sorted by Focal Length (Switzerland, 46°N)

🌄 350–600 mm — Widefield Nebulae & Large Galaxies

Ideal for: big emission nebulae, molecular clouds, large galaxies, star fields.

• North America Nebula — Summer

• Pelican Nebula — Summer

• Rosette Nebula — Winter

• California Nebula — Winter

• Andromeda Galaxy (M31) — Autumn

• Lagoon Nebula (M8) — Summer

• Veil Nebula Complex — Summer

• Heart Nebula — Autumn

• Soul Nebula — Autumn

• Sadr Region — Summer

• Pleiades (M45) — Winter

🌌 600–1000 mm — Medium Nebulae & Mid‑size Galaxies

Ideal for: Trifid, Eagle, medium galaxies, smaller nebula structures.

• Trifid Nebula (M20) — Summer

• Omega Nebula (M17) — Summer

• Pinwheel Galaxy (M101) — Spring

• Triangulum Galaxy (M33) — Autumn

• Crescent Nebula (NGC 6888) — Summer

• Monkey Head Nebula — Winter

• Pacman Nebula — Autumn

• M13 Hercules Cluster — Summer

• M92 — Summer

🌠 1000–1500 mm — Small Nebulae & Detailed Galaxies

Ideal for: Bubble, Eagle, smaller galaxies, globular clusters.

• Bubble Nebula — Autumn

• Eagle Nebula (M16) — Summer

• Whale Galaxy (NGC 4631) — Spring

• Sunflower Galaxy (M63) — Spring

• M5 Globular Cluster — Summer

• NGC 2903 — Spring

• NGC 4656 Hockey Stick — Spring

• M78 Reflection Nebula — Winter

🌑 1500–2000 mm — Small Galaxies, Planetary Nebulae, Tight Targets

Ideal for: M51, M82, edge‑on galaxies, Stephan’s Quintet.

• Whirlpool Galaxy (M51) — Spring

• Cigar Galaxy (M82) — Spring

• Sombrero Galaxy (M104) — Spring

• Needle Galaxy (NGC 4565) — Spring

• NGC 891 — Autumn

• NGC 7331 — Autumn

• Stephan’s Quintet — Autumn

• M94 — Spring

• NGC 1023 — Autumn