| Object: |
|
NGC
6888, The Crescent Nebula in the
constellation of Cygnus. |
| Comments: |
|
I
reprocessed my old data from 2021 which had over stretched stars.
I used StarXTerminator to remove all the stars. I then stretched
the nebulosity to the desired level. After that, I reinserted the
very slightly stretched stars. |
| Telescope: |
|
Televue
NP-101 (4-inch f/5.4 APO refractor)
|
| Mount: |
|
Losmandy
G11 German
Equatorial |
| Guide
Scope: |
|
Orion
Short Tube 80mm refractor |
| Guide
Camera: |
|
ZWO
ASI178MM with PHD guiding software |
| Imaging
Camera: |
|
ZWO
ASI1600MM PRO |
| Filters/Exposures: |
|
19x2-minute
Ha, 11x2-minute Sii, 10x2-minute Oiii exposures.
Software: MaximDL and PS CS6 with
StarXTerminator plugin. |
| Shooting
Location: |
|
Virginia Beach, VA
|
| Date/Time: |
|
The
night of 10/11 September 2021 (Reprocessed 7 May, 2023).
|
| Sky
Condition: |
|
Bortle
9
|
