Is a cloud of gas and dust located at a distance of about 5000 light-years from Earth, in the constellation of Sagittarius (The Archer). The glowing region is a relatively small object, just a few light-years across, in contrast to the one hundred light-years and more spanned by its famous neighbour, the Lagoon Nebula (Messier 8, eso0936). Although it is usually overlooked in favour of its distinguished companion, NGC 6559 has the leading role in this new picture.
The gas in the clouds of NGC 6559, mainly hydrogen, is the raw material for star formation. When a region inside this nebula gathers enough matter, it starts to collapse under its own gravity. The centre of the cloud grows ever denser and hotter, until thermonuclear fusion begins and a star is born. The hydrogen atoms combine to form helium atoms, releasing energy that makes the star shine. Equipment:
GSO 10" f/8 Truss RC Losmandy G11 Mount guided PHD2 Orion Starshoot on 60mm guide scope
QHY 268c one shot colour camera, -10c, . Gain 57 Offset 30, NINA sequence, with Optolong L Extreme filter Time/Locale:
Best 60 frames of 80, 3min exposures a total of 3hr captured 26/05/2023 Bortle 5/6 sky between 10:00pm and 2:00am 27/05, Najm Nazm Observatory Kelmscott WA, no moon, no wind, cold night Processing: Stacked DSS, then P2, PS6
Thanks David seems that I have some issues now I didn't have during February with focus and PA, so still sorting out a few bugs now that I am using NINA
