09/02/2014
Adelaide, Australia
Orion ED80T CF Triplet Apochromatic Refractor Telescope
Orion Thin Off-Axis Guider for Astrophotography
AZ-EQ6
Orion StarShoot G3 Deep Space Monochrome Imaging Camera
ZWO ASI120MM-S guide camera
Startools, Nebulosity, DeepSkyStacker
18x600 sec Ha, 224x300 sec LRGB
Tele Vue 0.8x FF/FR
A fairly long integration of the reflection blue and emission red nebula of M20, the fabulous 'Trifid Nebula'. This is a large HII region in Sagittarius, located about 5,200 light years away. The image was captured a few months ago from my Adelaide surburban backyard, using an Orion ED80T CT apo astrograph at f/4.8, mounted on an AZ-EQ6. The CCD camera was an Orion StarShoot G3 mono, guided with PHD2 using an Orion thin OAG and an ASI120MM-S guide camera. The image is composed of the following: Lum = 56 x 5 min Ha = 18 x 10 min R, G