LBN 468 is a nebula 1,600 light years away from earth in the constellation Cepheus. One of the most interesting parts of the nebula is the bright part on the top left. This nebula is called Gyulbudaghian’s Nebula. This bipolar reflection nebula is generated by shock waves from a contracting protostar, PV Cephei. The nebula changes its shape and luminosity very fast, as illustrated below in the small animation.
LBN 468 and Gyulbudaghian’s Nebula (top left)
Telescope: 16″ f3.75 Dream Scope
Camera: FLI ML16803
Mount: ASA DDM85
Exposure: 5 hours (18x300s L + 3x13x300s RGB)
Date: August 2019
Location: Southern Alps, France
Gyulbudaghian’s Nebula changing over time (2008 – 2019)
Thanks to Bernhard Zimmermann, Jerry Macon, Thomas V. Davis, Lloyd ‘Deep Sky West’ and Leo Shatz for providing me with their images for this animation.