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Lior Spiegel
August 16, 2018
783
post image

Contains: Deep sky object

Acquisition Details

Equipment card

Description

The Crescent Nebula (also known as NGC 6888) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. Image taken from the Negev desert Israel on May 27, 2017, May 19, 2018 & Jun 15, 2018. This is an RGB, Ha, OIII version. This also is an up close view of the nebula with only minor cropping at the adges that made from stacking errors. Image details: RGB- 7x540sec @ -15*c` bin 1x1 (for each filter), total- 3h,9min Ha- 17x1200sec @ -10*c` bin 1x1, total- 5h,40min OIII- 12x1200sec @ -10*c` bin 2x2, total 4h Total integration time- approx 13h Dark 20, Bias 50, Flat 30, were added for each filter. Equipment details: Mount- Losmandy G11 G2 modified Scope- William Optics 152mm f/8 LZOS OK-4 optics Camera- Starlight Xpress Trius SX694 mono & SX Filter Wheel & Astrodon 36mm unmounted E series Gen2 LRGB,Ha,OIII Guider- SX Lodestar & SX OAG Flattener- TSFlat2.5, 2.5". Software: Camera & mount control- SGP via Ascom Guiding- PHD Sky chart- Stellarium Mount main control- Gemini.net via Ascom Registration, Calibration & stacking images- Maxim DL5 Processing- PS CS6 Note: I took another 9 hours of LUM data from this object on 3 differant dates in 2017 but didn`t combine them to the image, will use this data on another version that still in progress.



M82 LRGB-Ha
1369

June 1, 2017


M27 Dumbbell nebula
550

September 1, 2018



A closer look at the Cocoon nebula
1818

October 7, 2016


M13 Globular Star Cluster
2330

April 24, 2013