Cone Nebula in MonocerosChristmas Tree Cluster
This photography was taken at San Antonio de Areco, Provincia de Buenos Aires, Argentina, in two sessions separated by almost one year: 35x5 minutes ISO 800 subframes the 1-6-2016 and 11-26-2016, summing up almost 3 hours of total integration time.
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 date | 1-6-2016 11-26-2016 |
| 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 | 35 x 5 minutes subframes at ISO 800 Total integration time: 2 hs, 55 min |
| 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 | 5086 x 3390 pixels |
| FOV | 1°33’ x 1°2’ |
| Image center coordinates | RA: 06 h 41 min 10 sec Dec: 9° 31' 42" Rotation: 7° |
| Process | PixInsight 1.8 |