Astrophotography – Russel Croman

Using long exposure and special telescope rigs astrophotographers are able to capture stunning photos of our neighboring galactic bodies from this little old rock we call home.

 

astrophotography-gear Gear set up like this -^

In my research I stumbled across Russel Croman who operates from his “Backyard observatory” in Austin Texas. This is his hobby and he works as a chip design manager for things like cell phones and car radios. He says his engineering background helps his Astrophotography.

astro1

“The color saturation has been enhanced to bring out the differences in the colors of the various areas of the surface. The hues are correct, just much more vivid than we usually see them.”

 

Technical Details

Optics: 20″ f/8 RCOS Ritchey-Chrétien Cassegrain w/ Field Corrector.
Mount: Software Bisque Paramount ME.
Camera: SBIG STL-11000XM.
Filters: SBIG Standard RGB.
Dates/Times: 18 April 2005.
Location: Dimension Point Observatory, Mayhill, New Mexico.
Exposure Details: LRGB = 2:4:2:4 milliseconds, two-frame mosaic.

astro2

“The Dumbell Nebula”

The remains of a sun much like ours.

Technical Details

Optics: 14″ f/10 RCOS Ritchey-Chrétien Cassegrain.
Mount: Takahashi NJP Temma 2.
Camera: SBIG ST-10XME, CFW-8.
Filters: SBIG standard LRGB
Custom Scientific 3nm H-alpha
Custom Scientific 3nm O-III.
Dates/Times: 30 June 2003, 14, 29, 30 July, 3 August 2003.
Location: my backyard observatory in Austin, Texas.
Exposure Details: LRGB = 60:30:15:30 minutes
Ha = 200 minutes
O-III = 140 minutes.
Processing: This is an enhanced natural color image: H-alpha and O-III data were blended with the original clear-filtered data to form a new luminance channel. This allowed a less aggressive DDP on the clear-filtered data, so the star images are much tighter

astro3

“The Bubble Nebula Mapped in Color”

Technical Details

Optics: 20″ f/8 RCOS Ritchey-Chrétien Cassegrain w/ RCOS Field Corrector
Mount: Software Bisque Paramount ME
Camera: SBIG STL-11000XM, FLI CFW-7
Filters: Custom Scientific 5nm [SII], H-alpha, [OIII]
Dates/Times: 12-17 October 2005
Location: Dimension Point Observatory, Mayhill, New Mexico
Exposure Details: SII:Ha:OIII = 4:11:3 hours (one-hour individual exposures)
Acquisition: MaxIm DL/CCD 4, TheSky6, CCDAutoPilot2
Processing: MaxIm DL/CCD 4, Photoshop CS2
Processing: [SII], H-alpha, and [OIII] mapped to red, green, and blue, respectively. H-alpha data also used as luminance.

 

 

 

 

 

 

 

 

 

 

astro4

“The Pelican Nebula Mapped in Color”

In the constellation of Cygnus, the Swan, you’ll find these “mountains” formed bydense gas and dust being eroded by radiation.

Technical Details

Optics: 20″ f/8 RCOS Ritchey-Chrétien Cassegrain w/ RCOS Field Corrector
Mount: Software Bisque Paramount ME.
Camera: SBIG STL-11000XM.
Filters: Custom Scientific 5nm [SII], H-alpha, [OIII], SBIG Standard LRGB.
Dates/Times: 6 November – 8 December 2006, 3-8 August 2005.
Location: Dimension Point Observatory, Mayhill, New Mexico
Exposure Details: [SII]:Ha:[OIII] = 330:540:270 minutes, LRGB = 270:120:60:120 minutes.
Acquisition: MaxIm DL/CCD 4, TheSky6, CCDAutoPilot3
Processing: CCDStack, MaxIm DL/CCD 4, Photoshop CS2
Processing: The LRGB data is blended into the mapped-color data at an opacity of 15%.

 

 

 

 

 

 

 

 

 

 

Source: http://www.rc-astro.com/index.php

 

-Trevor Taylor

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