Gum29 Nebula in Carina - Halpha
This photography was taken at Buenos Aires City, Argentina (a highly iluminated zone), in nine sessions from february 20, 2017 through march 19, 2017: 148 x 10 minutes ISO 800 subframes, summing up 24 hours 40 minutes 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 between 4°C and 11°C, dpending on the session), Astronomik Ha 6 nm filter, SkyWatcher NEQ6 mount, and homemade electronic focuser and anti-dew systems.
Technical data
| Acquisition site | Buenos Aires City, Argentina |
| Acquisition dates | 2-20-2017 2-23-2017 2-28-2017 3-6-2017 3-13-2017 3-17-2017 3-18-2017 3-19-2017 |
| 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 | 4°C to 11°C, depending on the session (on-sensor measured and regulated, ambient temperature in excess of 30°C on some of the sessions) |
| Filter | Astronomik Clip Ha 6 nm |
| Integration | 148 x 10 minutes subframes at ISO 800 Total integration time: 24 hs, 40 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 | 5051 x 3302 pixels |
| FOV | 1°33’ x 1°1’ |
| Image center coordinates | RA: 10 h 21 min 43 sec Dec: -57° 48' 41" Rotation: 6° |
| Process | PixInsight 1.8 |