Newtonian RGB- OOH and SHO of IC410 and the tadpoles (Tim Hawkes)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: NGC 1893

Newtonian RGB- OOH and SHO of IC410 and the tadpoles, Tim Hawkes

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Newtonian RGB- OOH and SHO of IC410 and the tadpoles

Powered byPixInsight

Newtonian RGB- OOH and SHO of IC410 and the tadpoles

3.0 h HA and O3 images along with ~ 2h of SII taken using a mono camera were combined into narrowband OOHa and SHO images of IC410 at F 5.0, f = 1000 mm. StarXterminator was used so that stars and starless images were processed separately. The NB images were built using PI pixmath and made starless using star exrterminator 2.03. The OOH NB image was red 100% HA, green 100% O3 and blue 10% HA plus 90% O3. To improve detail HA which offered the best SNR and was anyway colocalized was used as luminance for the RGB OOH image. After finishing the processing of the starless image, OSC RGB stars were added. Capture was with Sharpcap and preprocessing plus processing (background removal, noise reduction, photometric colour calibration and curves) was carried out using PixInsight. Of course, in reality the O3 and SII were much weaker than the HA ; he levels of these are considerably stretched up so as to indicate the locations of emissions from these ions.

The Tadpole Nebula, IC 410, lies about 12,000 light-years away in Auriga. This HII region is over 100 light-years across, sculpted by stellar winds and ionized by bright newly-formed stars in the embedded open star cluster NGC 1893 that was formed within the cloud about 4 million years ago. bright newly formed cluster stars are seen all around the star-forming nebula., The tadpoles are two relatively dense streamers of material trailing away from the nebula's central regions. Potentially sites of ongoing star formation in IC 410, these are about 10 light-years long.

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Astrometry.net job	7190541
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Newtonian RGB- OOH and SHO of IC410 and the tadpoles

Newtonian RGB- OOH and SHO of IC410 and the tadpoles

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Newtonian RGB- OOH and SHO of IC410 and the tadpoles

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