Horse Head and Flame Nebulae
NGC2024/IC434/B33 in Orion


This photography is a 2 tiles mosaic. It was taken in several sessions at two different locations: Pueblo Doyle and San Antonio de Areco, both in Buenos Aires, Argentina, between November 2015 and December 2016.
The total integration time for each tile was approximately 5hs.

The used equipment setup: Newton GSO 200 F4 with GPU Comma Corrector, Canon 600D/T3i modified and refrigerated (sensor measured and regulated temperature 0°C), Astronomik CLS CCD filter, SkyWatcher NEQ6 mount, and homemade electronic focuser and anti-dew systems.

Technical data

Acquisition site Pueblo Doyle, Buenos Aires, Argentina
Acquisition dates 11-6-2015
Acquisition site San Antonio de Areco, Buenos Aires, Argentina
Acquisition date 10-29-2016
Instrument Newton GSO F4 200 with GPU coma corrector.
Mount Sky-Watcher NEQ6, managed by EQmod
Guide Off-Axis, with Lodestar camera
Camera Modified Canon 600D/T3i
No IR Filter (Full Spectrum mod, using Astronomik MC Clear)
Refrigerated (regulated temperature)
Camera sensor temperature 0°C (on-sensor measured and regulated)
Filter Astronomik Clip CLS CCD
Integration Tile 1: 60 subframes @ ISO 800 / ISO 1600, 5 minutes each (total integration time: 5 hours
Tile 2: 56 subframes @ ISO 800 / ISO 1600, 5 minutes each (total integration time: 4 hours 40 minutes
Calibration 49 flats, 400 bias, 84 darks.
Resolution 1.1 arcsec/pixel
787 mm actual focal, 4.2 um x 4.2 um pixels
Native size (each tile) 5202 x 3465 pixels
Mosaic size 8058 x 3390 pixels
FOV 2°28’ x 1° 2'
Image center coordinates RA: 5 h 40 min
Dec: -1° 56'
Process PixInsight 1.8