SH2-308: The Dolphin-Head Nebula

SH2-308: THE DOLPHIN-HEAD NEBULA Telescope or Lens: Williams Optics Zenithstar 81 APO Camera: ZWO ASI533MM Pro Mount: HEQ5PRO SynScan GoTo Guide Scope: SVBony SV165 30mm Mini Guide Scope Guide Camera: ZWO ASI 290MM mini Software: PixInsight Accessories: William Optics 0.8x Reducer/Flattener Станица Динская, Россия Light Pollution: Orange zone Exposure: 25 x 120" ISO/Gain: 100 - Antlia 3nm Narrowband H-alpha 1.25" 4 x 600" ISO/Gain: 0 - Antlia 3nm Narrowband Oxygen III 1.25" 22 x 300" ISO/Gain: 100 - Antlia 3nm Narrowband Oxygen III 1.25" Viewer link: https://deepskyhosting.com/bTjGAwe Author: AstroDinsk