M20 the Trifid Nebula
Diffuse Nebula
Constellation: Sagittarius
Distance: 5,200 ly
Link to more information
06-27-2008
from Conner's Camp at Mary's Peak (elevation 2570 ft)
Philomath, Oregon
12.5" f/4.8 with Lightholder primary
Canon EOS 40D (unmodded) with Televue Photo Paracorr
7x180 sec subframes at ISO 800
Tom Osypowski Dual Axis Aluminum Eq. Platform
Autoguided with PHD sofware
8" f/4 Guidescope, Televue Paracorr
CCD-Labs Q-guide camera
Some interference with a rising cresent moon in the later subframes ...