Joshua Bury
M42 - The Orion Nebula
Took this one the other night while waiting to image the LCROSS impact on the moon (which, unfortunately didn't put on much of a show). Notice all the blue that the Orion nebula has. Since my D200 is unmodified it has a filter over the sensor that blocks most of the Hydrogen emission (red) and allows some of the other colors to be more noticeable. I left the trapezium region a little overexposed to give an impression of how much brighter it is than the rest of the nebula (it's easily visible to the naked eye).
Technical info about the image:
Object: Messier 42, The Orion Nebula
Mount: CGEM
Imaging scope: C9.25 at f/6.3
Imaging FL: 1480mm
Imaging camera: unmodified Nikon D200
Lights: 62x120s (124min) at ISO 400
Calibration: none
Guide scope: Orion 80mm ED at f/7.5 (piggyback)
Guide FL: 600mm
Guide camera: Philips SPC900NC (LX modified, 2s intervals)
Other details: guided with PHD (using GPUSB), calibrated and stacked using Deep Sky Stacker, post-processed in Photoshop CS4.
P.S. I took a little vacation from Flickr to catch up on real life. I have plenty of shots to share and so I'll be back around this week to see what you've all been up to.
M42 - The Orion Nebula
Took this one the other night while waiting to image the LCROSS impact on the moon (which, unfortunately didn't put on much of a show). Notice all the blue that the Orion nebula has. Since my D200 is unmodified it has a filter over the sensor that blocks most of the Hydrogen emission (red) and allows some of the other colors to be more noticeable. I left the trapezium region a little overexposed to give an impression of how much brighter it is than the rest of the nebula (it's easily visible to the naked eye).
Technical info about the image:
Object: Messier 42, The Orion Nebula
Mount: CGEM
Imaging scope: C9.25 at f/6.3
Imaging FL: 1480mm
Imaging camera: unmodified Nikon D200
Lights: 62x120s (124min) at ISO 400
Calibration: none
Guide scope: Orion 80mm ED at f/7.5 (piggyback)
Guide FL: 600mm
Guide camera: Philips SPC900NC (LX modified, 2s intervals)
Other details: guided with PHD (using GPUSB), calibrated and stacked using Deep Sky Stacker, post-processed in Photoshop CS4.
P.S. I took a little vacation from Flickr to catch up on real life. I have plenty of shots to share and so I'll be back around this week to see what you've all been up to.