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NGC 3603, so many stars!
Hi,
NGC 3603 was difficult to process, so many stars interfering with the nebulosity!!
It was hard to decide where to stop with the minimum pass filter to reduce the stars. I think the colour of the nebulosity is about right, looked at many images and just took an average.
NGC 3603 (bottom cloud) is an open cluster of stars situated in the Carina spiral arm of the Milky Way around 20,000 light-years away from our solar system. and is surrounded by the most massive visible cloud of glowing gas and plasma known as a H II region in the Milky Way.
NGC 3576 (top cloud) is a minor nebula in the Sagittarius arm of the galaxy a few thousand light-years away from the Eta Carinae nebula. It is much closer and smaller than the distant 3603.
Equipement.
Telescope 8" f/4 astrograph.
HEQ Pro 5 mount - orion mini guider.
Camera canon 1100D at ISO 800
15 x 5 minute subs - 9 darks - 9 flats - 9 bias.
Median stack in DSS, processed in Photoshop.
Cheers,
Justin.
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