"The Dragons and the Butterfly"NGC6188/NGC6164 MosaicMolecular cloud in Ara
This photography was taken at San Antonio de Areco, Provincia de Buenos Aires, Argentina, in two sessions: the 4-22-2017 and the 4-29-2017.
It is a mosaic composed by 2 tiles (3hs 30 min integration time and 3 hs integration time respectively).
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.
In this image, there is a photography of this nebula, taken from Buenos Aires City using a Ha narrowband filter.
Technical data
| Acquisition site | San Antonio de Areco, Buenos Aires, Argentina |
| Acquisition dates | 4-22-2017 4-29-2017 |
| 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 | Tile 1: 42 subframes @ ISO 800, 5 minutes each (total integration time: 3 hours 30 minutes) Tile 2: 36 subframes @ ISO 800, 5 minutes each (total integration time: 3 hours) |
| 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 | 5064 x 6244 pixels |
| FOV | 1°33’ x 1° 54' |
| Image center coordinates | RA: 16 h 37 min 44 sec Dec: -48° 34' 14" Rotation: 89.5° |
| Process | PixInsight 1.8 |