Discovery of New Faint Northern Galactic Planetary Nebulae
arXiv:1206.2477
Abstract
We present the discovery of 6 nebular objects made by amateur astronomers. Four of these discoveries are clearly planetary nebulae (PNe), one is a possible PN, and another is a likely H II region. The bipolar nebula Ou4 presents the largest angular extent ever found : over one degree on the sky! We consider various scenarios that could explain such a nebula. Ou4 could be one of the nearest PNe known, though its possible PN nature will need confirmation.
Accepted by Rev.Mex.AA; 18 pages,8 figures
Cited by in corpus (4)
- First release of the IPHAS Catalogue of New Extended Planetary Nebulae
- The planetary nebula IPHASXJ211420.0+434136 (Ou5): insights into common-envelope dynamical and chemical evolution
- DT Serpentis: neither a symbiotic star nor a planetary nebula associate
- Gas physical conditions and kinematics of the giant outflow Ou4