Eta Carinae and "Gabriela Mistral" nebulas, Gem's Cluster Mosaic
NGC3372/NGC3324/NGC3293 in Carina


This image is a 2 tiles mosaic, composed by two photographies taken at San Antonio de Areco, Buenos Aires, Argentina, the 3-24-2017 and the 4-29-2017.
The individual tiles are the Eta Carinae Nebula image and the "Gabriela Mistral" Nebula / Gem's Cluster image.

The total integration time for each tile was 2hs 45 min.

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 San Antonio de Areco, Buenos Aires, Argentina
Acquisition dates 3-24-2017
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 Two tiles mosaic - Each tile: 33 subframes @ ISO 800, 5 minutes each (total integration time: 2 hours 45 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 9525 x 3349 pixels
FOV (Mosaic) 2°54’ x 1° 1'
Image center coordinates RA: 10 h 39 min 17 sec
Dec: -58° 46' 8"
Rotation: 45°
Process PixInsight 1.8