Thursday, September 17, 2009

M13 Hercules Cluster

C8 SCT + 0.63x + Astronomik CLS
Canon 40D, 29 1-min exposures, ISO400, f/6.3
Sirius Mount guided with Orion Autoguider on ST80
Streamwood, IL

NGC 7662 Blue Snowball Nebula

C8 SCT + 0.63x + Astronomik CLS
Canon 40D, 7 1-min exposures, ISO200, f/6.3
Sirius Mount guided with Orion Autoguider on ST80
Streamwood, IL

Saturday, September 12, 2009

Owl Cluster

William Optics M110 + 0.8x + Astronomik CLS
Canon 40D, 20 180-sec exposures, ISO200, f/5
Sirius Mount guided with Orion Autoguider on Borg 45ED
warm and humid Streamwood, IL

Double Cluster

William Optics M110 + 0.8x + Astronomik CLS
Canon 40D, 18 180-sec exposures, ISO200, f/5
Sirius Mount guided with Orion Autoguider on Borg 45ED
warm and humid Streamwood, IL

Friday, September 11, 2009

M13 Hercules Cluster

Another try at this beautiful showcase object. This time 3 minute guided exposures.

William Optics M110 + Astronomik CLS
Canon 40D, 10 180-sec exposures, ISO400, F6
Sirius Mount guided with Orion Autoguider on ST80
warm and humid Streamwood, IL