Gum29 Nebula in Carina - Halpha

Gum29 Nebula

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
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