This latest image set of The emission Nebula NGC 1499 otherwise known as the California Nebula captured from Grand Mesa Observatory using 2 cameras, the QHY128C for color and the QHY11 for the narrowband (hubble palette) for this setup I’m using twin Takahashi E-180 Astrographs mounted Tandem (side by side). By using 2 identical fast astrographs telescopes, both equipped with identical size sensors not only means we can capture twice as much data but by using one camera for broadband color (QHY128C CMOS) and the other (QHY11M) with narrowband filters sensitive to H-Alpha, OIII and SII we are able to cover a much broader spectrum and provide several versions of the same object in a much shorter time frame than otherwise with a single detector.
In order to show you the different views captured and the multiple colors generated from the different gases I prepared this short video
www.youtube.com/watch?v=cJf4u3bP548&feature=youtu.beTotal Acquisition Time 11.3 hours
Image capture details
By Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
QHY128C
Dates: 13th, 14th November 2018
Color 230 min, 115 x 120 sec
Camera: QHY128C
Offset 60, Gain 2200 Calibrated with flat, Dark & Bias
Optics: Takahashi E-180 F2.8 Astrograph
Mount: Paramount GT1100S
Image Acquisition software Maxim DL5
Pre Processed using Pixinsight
Post Processed using Photoshop CC
QHY11
Image capture details
By Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
Dates: over 3 nights, 7th, 16th and 17th Nov 2018
H-Alpha 150 min, 15 x 600 sec
OIII 150 min, 15 x 600 sec
SII 150 min, 15 x 600 sec
Camera: QHY11 Mono CCD
Offset 157, Gain 5 Calibrated with Dark & Bias
Optics: Takahashi E-180 F2.8 Astrograph
Mount: Paramount GT1100S
Image Acquisition software Maxim DL5
Pre Processed using Pixinsight
Post Processed using Photoshop CC
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