The “Blue Planetary” NGC 3918 in Centaurus, imaged with the T33 12-inch f/9 Ritchey-Chretien telecope at Siding Spring Observatory iTelescope, controlled remotely on May 24/25, 2019. The camera is an Apogee Alta U16. This is a stack of 4 x 4 minute exposures in each of the L, R, G, and B channels, aligned and stacked with PixInsight but blended into a full-colour image with Photoshop.
The Blue Planetary NGC 3918 a small bright planetary nebula in Centaurus This is a stack of 4 x 6 minute exposures at ISO 1000 with the filter-modified Canon 5D MkII and Astro-Physics 105mm Traveler apo refractor at f/5.8 with the 6x7 field flattener. Taken from Timor Cottage, Coonabarabran, Australia, December 17/18, 2012.
NGC 4103 open cluster in Crux. Taken with 4-inch AP Traveler apo refractor at f/4.5 with Canon 5D camera at ISO 800 for stack of 4 x 4 minute exposures. Taken from Coonabarabran, NSW, March 27, 2007
