NGC 6164 is a bipolar emission nebula of about 4 light-years across that lies some 4,200 light-years away in the southern constellation of Norma. It is approaching us at approximately 53.9 kilometres per second.
Its symmetric gaseous shroud and faint halo surround the blue, young, central star HD 148937, the brightest member of a triple star system orbiting around each other, which fierce stellar winds – of about 8 million kilometres per hour – created this nebula. This hot, luminous O-type star is some 40 times as massive as the Sun and just 3 to 4 million years old. In another 3 to 4 million years the massive star will end its life in a supernova explosion.
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 capture software, with SVbony dual band filter
Time/Locale:
The best of 54 frames 2 min long exposures a total of 1hrs 48min captured 28/4/2023 Bortle 5/6 sky Najm Nazm Observatory Moon 52% clear cool evening no wind (I need more data)
Processing: Stacked DSS, then P2, PS6
