SH2-308 Dolphin Head Nebula

SH2-308 DOLPHIN HEAD NEBULA Telescope or Lens: Askar V (384mm mode) Camera: ZWO ASI 2600mc Mount: ZWO AM5 Guide Scope: Askar 32mm F4 Guide Camera: zwo 120mc Software: pixinsight, photoshop Adelaide, Australia Light Pollution: Yellow zone Exposure: 146 x 300" ISO/Gain: 0 - RGB 83 x 300" ISO/Gain: 100 - OIIISII This target was the hardest I've ever taken <br>Only after adding some narrowband data, the noise level (especially in the green/blue channel) dropped to an acceptable to process value Viewer link: https://deepskyhosting.com/lIC7qgd Author: sergey_vakhreev