"Tarantula" nebula (HOO)
-Large Magellanic Cloud Galaxy

Tarantula Nebula

At approximately 170000 light-years, in the austral constellation Dorado, lays the "Tarantula Nebula" (NGC2070 or 30 Doradus).
Ubicated into the Large Magellan Cloud (one of the galaxies of the Local Group, probably a satellite of our own galaxy), this is the biggest emission nebula known.

This photography is a 2 tiles mosaic. The total integration time for each tile was approximately 2hs 45 min.
It was taken in two sessions, both at San Antonio de Areco, Buenos Aires, Argentina, separated by 2 years, in October 2015 and November 2017.


This photography was made in the city of Buenos Aires, Argentina, in different sessions during several nights of November 2020, totalizing 30 hours of exposition time.

Equipment used: Sky Watcher Esprit 100 ED APO, ZWO ASI 1600 (temperature -20°C), Baader Hα 3.5 nm filter, Astronomik OIII 6 nm filter, NEQ6 mount. Homemade electronic focuser and anti-dew devices.

Here, there is a RGB color photography of this nebula, taken from "almost-rural" skies in San Antonio de Areco, Buenos Aires province.

Technical Data

Acquisition site Buenos Aires City, Argentina
Acquisition dates From November 11 to 26, 2020 (11 sessions)
Instrument Refractor SkyWatcher Esprit 100 ED APO.
Mount Sky-Watcher NEQ6, managed by EQmod
Guide Off-Axis, with Lodestar camera
Camera ZWO ASI 1600
Camera sensor temperature -20°C
Filters •Baader Hα (3.5 nm)
•Astronomik OIII (6nm)
Integration 360 x 5 minutes subframes
Total integration time: 30 hs (15 hs/filter)
Calibration 36 flats, 80 darks, 100 darkflats.
Resolution 0.7 arcsec/pixel
550 mm focal lenght, 3.8 µm x 3.8 µm pixels, using drizzle technique
Native size 4656 x 3520 pixels
FOV 1° 31' x 1° 18'
Image center coordinates • RA: 5h 40m
• Dec: -69° 26'
• Rotation: 136°
Acquisition Maxim DL
Process PixInsight 1.8