Nebula in VelaGum 15
At about 3000 light-years, in the austral constellation Vela lays the Gum 15 nebula, a large ionized HII zone. With a total integration time of 2 hours 15 minutes (27 x 5 minutes individual subframes) this image was taken in La Banderita Observatory, La Pampa, Argentina during June 2018. The used equipment setup: Newton GSO 200 F4 with GPU Comma Corrector, Canon 600D/T3i modified and refrigerated (sensor measured and regulated temperature 0 -5°C), Astronomik CLS CCD filter, SkyWatcher NEQ6 mount, and homemade electronic focuser and anti-dew systems.
Technical data
Acquisition site | La Banderita Observatory, La Pampa, Argentina |
Acquisition date | 6-13-2018 |
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 | -5°C (on-sensor measured and regulated) |
Filter | Astronomik Clip CLS CCD |
Integration | 27 subframes @ ISO 800, 5 minutes each (total integration time: 2 hours 15 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 |
Cropped size | 5100 x 3310 pixels |
FOV | 1° 33.5' x 1° 0.7' |
Image center coordinates | RA: 08 h 44 min 47 sec Dec: -41° 17' Rotation: -175° |
Acquisition | Maxim DL |
Process | PixInsight 1.8 |