Helix Nebula - NGC 7293
Technical Data
| Acquisition site | San Antonio de Areco, Buenos Aires, Argentina |
| Acquisition date | 9-12-2015 (28 subframes) 6-8-2016 (17 subframes) |
| 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 | 45x5 minutes subframes - ISO 800 Total integration time: 3 hs 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 | 5202 x 3465 pixels |
| Cropped size | 3240 x 1822 pixels |
| FOV | 59.4’ x 33.4’ |
| Image center coordinates | RA: 22 29 40.607 Dec: -20 50 03.74 Rotation: -0.6° |
| Process | PixInsight 1.8 |