NGC6995 – Eastern Veil Nebula (Bat Nebula)
NGC6995 is a region of the Cygnus supernova remnant, located about 2,400 light-years away. Its structure is made up of filaments of gas heated and ionized by the passage of an expanding shock wave. Emission is particularly strong in Oxygen III and Hydrogen alpha, lines that help reveal the shock fronts, cooling regions, and density variations in the interstellar medium.
General information
- Constellation
- Cygnus
- Category
- Nebulae
- Date
- 12 October 2022
Capture
- Total time
- 4h 00min
- Subframes
- 360s (Ha: 20x, OIII: 20x) bin1
- Gain / Offset
- N/A / N/A
- Calibration
- 50 flat frames, 50 dark-flat frames and 50 library dark frames, without bias frames
Equipment
- Telescope
- TS102 f/5.6
- Camera
- ASI294MM at -10ºC
- Filters
- Ha and OIII Astronomik, 6 nm
- Mount
- HEQ-5 Pro belt drive
- Guiding
- PHD2, Guide scope 60mm/f4 + ASI224MC + PegasusAstro UCH + PPBMicro
- Focuser
- ZWO EAF
- Filter wheel
- ZWO EFW 7pos
Processing and environment
- Processing
- Stacked and post-processed with PixInsight 1.9.2
- Acquisition
- NINA
- Location
- l'Ampolla, Tarragona
- Sky
- Bortle 4