Elephant Trunk Nebula and a small PN

[gorann]

The other night I added a second panel to my Elephant trunk nebula and noted what looked like a small planetary nebula. Turns out that this Oiii emitting PN is PK 100+04.1 also known as PM1-333. Here is a paper confirming that it is a planetary nebula: https://iopscience.iop.org/article/10.1088/0004-6256/137/5/4140

This is a RASA8 image and obviously it is a better target for a long focal length scope. 88 x 5 min so 7.3 hours with ASI2600MC and IDAS NBZ filter (Ha+Oiii).

The bright yellow star up to the left is Herschel's Garnet Star (µ Cephei).

And here is the two panel mosaic of the Elephant Trunk Nebula (totally 15 hours). See if you can spot the PN:

Edited March 19, 2023 by gorann