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NGC 346 (Tuc)
Click on the image for a larger version
| Date/Site: |
29. December 2018, Daniel-Verschatse-Observatory at the Hacienda los Andes, Chile |
Exposure/
Filter: |
R: 12 x 300 seconds,
G: 11 x 300 seconds,
B: 12 x 300 seconds,
Hα: 11 x 600 seconds (-15°C),
O3: 10 x 600 seconds (-20°C) |
| Camera: |
SBIG STL11000 with Astronomik Type II-filters |
Optics/
Instrument: |
Astro-Physics 175mm f/8 StarFire EDF Triplet Refractor with flattener on AP1200 GTO |
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Guiding: Lodestar attached to a 50mm-finder,
focusing: Robofocus and FocusMax,
image acquisition: CCD-Commander and MaximDL 6,
calibration and processing: PixInsight 1.8 |
NGC 346 is a star forming region in the Small Magellanic Cloud.
Already on the trip to La Réunion together with my astro-buddy Ben I marveled at these gigantic star clusters, immersed in thick bubbles of ionized oxygen and hydrogen, viewing them in my 13"-Dobson. I wondered what forces are at work there so that we can see them over the distance to the SMC.
As the STL11000 has no O3-filter, Pedro Borja was so kind to provide a series of O3-frames taken with the Riccardi-Honders.
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© Friedhelm Hübner, last revision: 03.12.2023