Image Description and Details : This is a LRGB composition with about 12.000 1 sec frames for the luminance to which I added the color obtained from about 8.000 images in H-alpha and as many in OIII (R/Ha - G/40%Ha-60%OIII - B/OIII). Then I added the H-alpha and the OIII channels to compose the L-RGB-Ha-OIII.

Dobson 600mm f3.8
StellarCAT - Nexus DSC
ASI2600MM
L 12.000 x 1 sec. bin 1 -10°
R (H-alpha) 8000 x 1 sec. bin 1 -10°
G (40% H-alpha/60% OIII)
B (OIII) 8000 x 1 sec. bin 1 -10°
Astronomik L2 filter 2" mounted
Astronomik H-alpha 12 nm filter 2" mounted
Astronomik OIII 12 nm filter 2" mounted
Dark x 200
Paracorr type 2
Falcon derotator
SharpCap - SiriL - PixInsight - PS - AstroSurface
Bortle 8

Copyright: Filippo Scopelliti 

About two weeks ago, I processed a monochrome Hα image of this interesting object on the border of Cepheus and Lacerta. Last Monday the sky unexpectedly cleared. I decided to spend the night on acquiring OIII data to create an Hα-OIII-OIII false colour image, where Hα is assigned to the red channel, OIII to the blue channel and a mix of Hα and OIII to the green channel. Although it stayed clear all night, I only used the images captured before midnight. In the area in the Netherlands where I live, the sky severely brightens from midnight to dawn because horticulturalists are then allowed to ignite assimilation lights. Although the used OIII filter has a bandwidth of only 4nm, the light pollution caused by the glasshouse horticulture severely affects the quality (signal-to-noise ratio) of the images. I'll post a separate message to illustrate the difference in sky quality before and after midnight.

What's striking in (false) colour images of this object, is the conical beam that crosses in front of nebulas in the background. Here this beam has a cyan hue in front of yellow/orange nebulas.

Exposure time: 16 hours, 10 minutes (141x 300" Hα, 53x 300" OIII) | Optics: Takahashi ε-180ED f/2.8 | Camera: ZWO ASI294MM Pro (B 2x2, G 120, T -15 °C) | Acquisition: ZWO ASIair Pro | Filters: Baader Planetarium Ultra-Highspeed | Mount: Astro-Physics Mach1 GTO | Location: Zoetermeer, Netherlands | Date: 27 & 28 October and 8 November 2021

Pre-processing in Astro Pixel Processor, post-processing in Adobe Photoshop.

Copyright: Maurice Toet

Image Description and Details : Sh2-132 or Lion Nebula, is a nebula of relatively weak emission located at about 10 000 light-years, at the border of Cepheus/Lacerta.
About 22 hours of exposure from Montreal, Bortle 9
Setup:
CEM70A
TSA102
QHY294MM
Chroma 3nm filters

Copyright: Jonathan Durand

Sharpless 132 is a very faint emission type nebula on the Cepheus/Lacerta border. It lies at a degree southeast of Epsilon Cep, and has a size of about 40 arc minutes.

Sh2-132 is located at about 10400 light years in the Perseus Arm of the Milky Way , in the region of Cepheus OB1, a large, bright OB association . The stars responsible for the ionization of its gases are very hot and massive; in particular, two Wolf-Rayet stars , known by the initials HD and HD 211 564 211 853 (the latter also having the initials WR 153), as well as a star of spectral class O8.5V and a dozen stars of class B.

Equipment used:

Eq6-R

AstroTech 106LE with upgraded Moonlite focuser

TSFlat 2" field flattener

ASI294MM Pro Cmos camera, cooled at - 15°C

8x1.25" ZWO USB filterwheel

Chroma 3nm 1.25" Ha, Oiii ans Sii filters

Qhyccd QHY5L-IIM guide camera

9x50mm finder-guider

Qhyccd Polemaster

Software used:

Eqmod, SGP - Sequence Generator Pro, PHD2, Stellarium with stellariumScope, SharpCap for polar alignment

Date: 01.06 to 15.07.2021

Location: Bushey, bortle 7

Ha: 80x300sec Bin 2x2, Gain 200 Offset 10

Oiii: 60x300sec Bin 2x2, Gain 200 Offset 10

Sii: 50x300sec Bin 2x2, Gain 200 Offset 10

Total integration time 15 hours and 50 minutes

Stacked in AstroPixel Processor and processed in Pixinsight and Photoshop CC 2021

Copyright: Emil Andronic

Image Description and Details :

SH2-132 SHO 2 Panel Mosaik (Lionnebula)
One night with each Filter and Panel.
Zwo Asi 1600mm Pro
UNC8" F4 (800mm)
600mm Guidescope and the Zwo Asi120mm for guiding.
Mount SW EQ6 Pro.
All together 18h integration time
Subframes 600sec Gain 139 -15C .
Flats Darks Darkflats
Dithering
Software: N.I.N.A PHD Pixinsight Photoshop
Imaged in west germany under bortle 4 Sky.

Copyright: Frank Föhles

Image Description and Details :

Sh2 -132 is a large and very weak emission nebula in the constellation of Cepheus .
The stars responsible for the ionization of its gases are very hot and massive; in particular, two Wolf-Rayet stars were identified , known with the initials HD 211564 and HD 211853.

Processed by Santiago Rodríguez

Combination:

Image captured with Halfa and OIII filters of 5 nm. by Carlos Uriarte.
R:Halfa
G: 20%Halfa/80% OIII
B:OIII
Halfa astrodon 5nm filter (900 "x 91): 22.75h BIN 1
OIII astrodon 5nm filter (900"x50):12.5h
Total: 35.25h
CCD: Atik 460exmono
Telescope: Takahashi FSQ106ED
Ager, LLeida, Spain



Copyright: SantiRoHe