One of my favorite summer wide-field targets: the sprawling emission nebulae around the bright star Sadr (γ Cygni) in the heart of the Cygnus constellation. This 20 h 22 min integration shows the delicate red Ha structures mixed with faint OIII glow, all captured right from my light-polluted backyard (Bortle 6).
Gear used
- SVBony SV550 80 mm f/6 Triplet APO
- ZWO ASI2600MC Pro
- Sky-Watcher EQ6-R Pro
- SVBony SV220 7 nm Ha/OIII dual-band + Optolong UV/IR cut
- SVBony SV193 0.8× reducer (meant for the doublet SV503, but it actually works beautifully with the triplet — only one minor quirk I explain in the video below)
I was surprised how well this budget APO + reducer combo performed under city skies — the stars are tight to the corners and the contrast is excellent. Watch my full video review of this telescope on YouTube.
Full-resolution version and acquisition details on AstroBin:
Clear skies!