Bicolour image of the NGC 6164-5

Photographer
Slawomir Lipinski
Email
slawomirlipinski@yahoo.com.au
Location of photo
Paddington in Brisbane, Australia
Date/Time of photo
Over several nights in July 2015
Equipment
4" TS doublet, QSI 690i and AS-EQ6, Astrodon 3nm Ha and O3 filters
Description
Information regarding this nebula fr9om ASO website: The striking central star, known only as HD 148937, is the brightest member of a triple system of stars in orbit around each other. This extremely hot star is losing mass from its outer layers continuously, but occasionally more vigorous outbursts give rise to the symmetrical shells seen in this picture. The two catalogue numbers, NGC 6164 and 6165, refer to these shells as separate objects. The nebula is in the southern Milky Way, in Norma at a distance of about 4200 light years.
Website
http://www.astrobin.com/users/Slawomir/
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