Nova Delphini 2013 on August 18th, 01:29ut. Slightly brighter from my last observation holding presently at 4.8-5.2 mag. A nova (plural novae or novas) is a cataclysmic nuclear explosion in a white dwarf star. It is caused by the accretion of hydrogen on to the surface of the star, which ignites and starts nuclear fusion in a runaway manner. And on the same region close by is the Planetary Nebula NGC6905 on August 18th,03:52ut. Planetary Nebula NGC6905 has an expanding shell of thin ionized gas that is ejected from this dying star of about the same mass as the sun, the gas absorbs ultraviolet radiation from the central star and reemits it as visible light by the process of fluorescence.
(Equipment: LX200ACF 12 in. OTA, F6.3, CGE mount, ST402me NAB Ccd, Astronomik LRGB filter set.)