[cave nebula]

Cave Nebula SH2-155 C9

 

The Cave Nebula is an Emission Nebula in the constellation of Cepheus. It is about 2,400 light-years away from Earth (Wikipedia).

 

Taken over 3 nights here in the UK

 

Details:

Mount: SkyWatcher HEQ5 Pro

Guiding: ZWO ASI 120MM Mini USB 2.0 Mono Camera - Orion 50mm Guide Scope

ASCOM.EFW2 Filter Wheel

Filter: LPS-D2

ASCOM.EAF.Focuser

Camera: Canon EOS 70D (full spectrum modified)

Askar 80 PHQ F7.5 Quadruplet Astrograph Telescope

Focal length: 600mm

ISO 800 - f7.5

8 hours total Integration

LPS-D2: 8 hours

Darks: 60 frames

Flats: 60 frames

Bios: 60 frames

DarkFlats: 60 frames

Bortle 5/6

Apps: N.I.N.A. > PHD2 > ASCOM > EQmodern >

Pixinsight > Photoshop >

Done