Pickering’s Triangle (2014/08/27)

Veil1_20140827

Data: 08/27/2014
Location: Henry Coe State Park, Morgan Hill, CA
Condition: excellent transparency, excellent seeing
Imaging: AT111 EDT/AT2FF/CGEM/STF8300C
Guiding: AT72ED/Orion SSAG/PHD
Exposure: 10 x 15′ subs, dark/bias/flat calibrated
Software: Pixinsight

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NGC6960 – Western Veil Nebula (2014/08/22)

It is by far the darkest sky I have ever seen at Henry Coe. The marine layer was already visible from south over Gilroy at sunset, and it covered sky glow from Gilroy and Morgan Hill around midnight. By ~2AM sky glow from Silicon Valley was also completely blocked by marine layer.

Unfortunately when I examined my subs of Western Veil Nebula, I noticed that it was slightly out of focus, especially those taken after mid night. I think the problem was that I focused the telescope at 9PM when the ambient temperature was still relatively mild and did not re-focus when temperature dropped. One more lesson learned.

ngc6960_20140822

Data: 08/22/2014
Location: Henry Coe State Park, Morgan Hill, CA
Condition: excellent transparency, excellent seeing
Imaging: AT111 EDT/AT2FF/CGEM/STF8300C
Guiding: AT72ED/Orion SSAG/PHD
Exposure: 12 x 15′ subs, dark/bias/flat calibrated
Software: Pixinsight

NGC6992/6995 – Eastern Veil Nebula (2014/08/01)

The sky was partly cloudy when the Sun set, but cleared up from 11PM to 3AM, a perfect window for imaging Eastern Veil Nebula.

NGC6995_20140801_Morph

Since Veil Nebula is located in starry Milky Way, the image is swamped with countless tiny stars. I applied the star size reduction technique using Pixinsight Morphological Transformation, though more reduction is still desired.

Data: 08/01/2014
Location: Henry Coe State Park, Morgan Hill, CA
Condition: excellent transparency, excellent seeing
Imaging: AT111 EDT/AT2FF/CGEM/STF8300C
Guiding: AT72ED/Orion SSAG/PHD
Exposure: 13 x 15′┬ásubs, dark/bias/flat calibrated
Software: Pixinsight