M17

Swan Nebula in Emission-Line

M17

Click to display the full resolution

Object Info

Type

Diffuse Nebula

Constellation

Sagittarius

Distance

5,000 ly

Capture Details

Date

June 20, 2020

Location

Palomar Mountain, CA

Exposure

SII 13x15, Ha 14x15, OIII 13x15 (bin 1x1) as RGB

Equipment

Optics

DSI RC10C Corrected RC Astrograph

Focal Length

1867mm @f/7.3

Mount

Astro-Physics 900GTO

Camera

FLI ML-6303E

Focuser

Built-in Secondary Focuser

Filters

FLI CFW2-7, Astrodon 3nm SII, Ha, OIII

Software

Maxim DL, CCDStack, Photoshop