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Geschrieben von: Admilson Pinto   
Donnerstag, 29. Januar 2009 um 00:00 Uhr
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NGC 1499


NGC 1499 – California Nebula

 

Date/time: 08.11.2008 21:10 to 08.11.2008 22:35
Az./Alt. positions: 82° / 44° to 99° / 58°
Ambient conditions: 0°C, transparency 4/5, seeing 3/5,
¾ Moon, Moonset at 02:15
Location: Trier, Germany

Equipment:
Telescope: TMB 92 SS f/5.5 with TSFlat, with dew heater
Mount: CGE, selfguided with ST-4000XCM
Camera: SBIG ST-4000XCM
Filters: Baader H-a 7nm

Acquisition:
Software: CCDSoft V5
FOV, Image scale: 102.8 x 102.8 arcmin, 3.01 arcs/pixel
Sub-exposures: 1h 20min (8 x 10min) light frames at –30°C,
50 x 10min dark frames

Processing:
Calibration, stacking, extraction L-channel in Images Plus 3.75,
curves and levels adjustments in CS3, noise reduction with Carbonis Actions,
SMI enhancement and High Pass sharpening in CS3

Comments:
This is the first attempt to make a H- image with the TMB under high Moon conditions.
Too short exposure time. Only through the SMI technique it was possible to bring the
details of the nebula.
 

 

Zuletzt aktualisiert am Freitag, 27. Februar 2009 um 16:24 Uhr