Flying Bat Nebula Sh2-129, Squid Nebula OU4 and Seahorse Nebula Barnard 150in Ha O3 RGB + Gianni Lacroce + L-QEF, HA, OIII 3nm

source：Optolongpopularity：34Release Time：2025-08-21

Flying Bat Nebula Sh2-129, Squid Nebula OU4 and Seahorse Nebula Barnard 150in Ha O3 RGB

Filters: Optolong L-QEF, Optolong HA 3nm and OIII 3nm filters

Flying Bat Nebula Sh2-129, Squid Nebula OU4 and Seahorse Nebula Barnard 150in Ha O3 RGB
Sh2-129 is an extensive emission nebula visible in the constellation Cepheus. It is also known as the Flying Bat Nebula. Its distance has been estimated at around 1300 light years. The Squid Nebula, catalogued as Ou4, is barely visible, a truly difficult subject! The image shows the weakness of the oxygen III emission of which it is composed.
The perspective makes them appear very close, but they are actually very distant. To their right is the Seahorse Nebula, a dark nebula immersed in the dust of Cepheus.

Askar acl200
Zwo Asi 2600 duo Zwo Asi 2600 mm
Zwo Am5
Optolong filters 3nm Ha O3 and L-QEF filters

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