NGC7000 – North America Nebula (SHO)
The image uses an advanced astrophotography colour-mapping technique known as the Hubble palette. Bright golden and orange tones generally represent light emitted by hydrogen and sulphur, while deep blues and cyans represent oxygen emission. Its most striking feature is the bright orange and yellow ridge crossing the image like a mountain range or rugged coastline, commonly known as the Cygnus Wall. It is a shock or ionisation front: intense ultraviolet radiation from young, massive stars strikes the dense cloud of cold gas, ionising it, causing it to glow and sculpting these undulating forms.
General information
- Constellation
- Cygnus
- Category
- Nebulae
- Date
- 7 June 2026
Capture
- Total time
- 11h 02min
- Subframes
- 04–05/10/2024 + 07/06/2026: 360s (Ha: 26x, OIII: 23x, SII: 23x) bin1; 300s (Ha: 21x, OIII: 16x, SII: 9x) bin1
- Gain / Offset
- 125 / 30
- Calibration
- 30 flat frames, 30 dark-flat frames and 40 library dark frames, without bias frames
Equipment
- Telescope
- TS102 f/5.6
- Camera
- ASI294MM at -10 °C
- Filters
- Ha, OIII and SII Astronomik, 6 nm
- Mount
- Sky-Watcher Wave 150i
- Guiding
- PHD2, Guide scope 60mm f/4 + ASI220MM + PegasusAstro UCH + PPBMicro
- Focuser
- ZWO EAF
- Filter wheel
- ZWO EFW 7pos
Processing and environment
- Processing
- Stacked and post-processed with PixInsight 1.9.4
- Acquisition
- NINA
- Location
- l'Ampolla
- Sky
- Bortle 4