Focal Pointe Observatory
Astrophotography by Bob Franke

Home
Recent Images
Galaxies
Nebulae
   Natural Color
   Narrow Band
   H-Alpha
Clusters
Comets
Solar System
Observatory
Equipment
Tips & Tricks
Published Images
My Freeware
Local Weather
Terrestrial

 

Send Email

 

 

 

 

 

 

 

Sh2-101 - The Tulip Nebula


      Click the full screen zoom button           ^
     
Click the image to Zoom and Pan              

Click here to view the image without Zoomify (1800 x 1200, 516 KB)

 

 

Instrument

12.5" RCOS @  ~f/9 (2880 mm fl) 1.28 arcsec / pixel.  The Zoomify image scale is 1.28 to 3.07 arcsec / pixel.

Mount

Paramount ME

Camera

SBIG STL-11000 w/ internal filter wheel, AstroDon Gen II Filters

Acquisition Data

7/20/2011 to 8/21/2011 Chino Valley, AZ... with CCDAutoPilot3 & CCDSoft.  AOL guided

Exposure

Ha   540 min.  (18 x 30 min. each, binned 1x1)

OIII  630 min.  (21 x 30 min. each, binned 1x1)

Ha:OIII:OIII mapped to r, g & b.

Click here for narrow band color mapped images.

Click here for an Ha filtered b/w image.

Software

  • CCDSoft, CCDStack, Photoshop CS and Noel Carboni's actions.

  • PixFix32 (pre-beta) to repair column defects.

  • CCDStack to calibrate, register, normalize, data reject, combine the sub exposures and create the color image.

  • PhotoShop for on-linear stretching.

  • Noiseware Pro, a PhotoShop plug-in.

Comment

North is to the left.

The Tulip Nebula, or Sharpless 101 (Sh2-101) is located in the constellation Cygnus. The emission nebula is about 6,000 light-years for Earth. It was catalogued by astronomer Stewart Sharpless in 1959.

 

This synthetic color image is similar to the true RGB color.