* Setup:

Telescope: Refractor Orion ED80

Focal Length: 600mm

Camera: QHY163M

Mount: SkyWatcher HEQ5 Pro

Filters: LRGB Optolong

*Exposure:

L: 40x 300s bin1x1

R: 19x 120s bin2x2

G: 16x 120s bin2x2

B: 17x 120s bin2x2

Total: 5 hours

IC 443 is a galactic supernova remnant in the constellation Gemini. On the plane of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth. (source wikipedia.com)

Acquisition Details:

William Optics Fluorostar 91 / FLT91 ×

ZWO ASI2600MC Pro ×

ZWO AM5 ×

Optolong L-Ultimate 2" ×

William Optics Flat68 III × · ZWO ASIAIR Plus ×

Software

Pleiades Astrophoto PixInsight · Russell Croman Astrophotography NoiseXTerminator · Russell Croman Astrophotography StarXTerminator · Serif Affinity Photo · ZWO ASIStudio ×

Dates:

25 Feb 2023 · 26 Feb 2023

Integration: 5h 25′

Acquisition details: astrob.in/7b4wyz/I/

Data - 25/06/2022

Hora - 20:23 ~ 22:12 local (-3 UTC)

Lat - 7,13S

Log - 34,83W

Local - João Pessoa, PB - Brasil

Bortle - Class 7

Telescopio - Lente Canon 200mm F2.8L USM @F4

Montagem - EQ5

Motorização - On Step Brazil

Guider - SW 9x50 + SVbony 105

Câmera - Canon T3i modificada

Filtro CLS CCD Clip Optolong

ISO - 1600

Light - 138 x 30s (69 min)

Flat - 15 x 1/4000s

Dark - 15 x 30s

Bias - 15 x 1/4000s

Temperatura do sensor ~ 27°C (Home made cooler)

Software Captura - APT/PHD2

Softwares Processamento - SiriL/PIX/PS

#astfotbr

vdB 132 è una nebulosa a riflessione visibile nella costellazione del Cigno. Si individua nella parte settentrionale della costellazione, poco meno di 3° a nord della stella Sadr. Questa e la vicina NGC 6914 costituiscono un piccolo sistema di nebulose a riflessione allungato in senso nord-sud, La nebulosa vdB 132 riflette la luce di BD+41°3737, una stella azzurra, il legame con la grande nebulosa IC 1318 e i suoi tenui filamenti rossastri è ben evidente e l'intero complesso si trova alla distanza di circa 5500 anni luce.

Composizione HaRGB

Telescopio Sky-Watcher Newton 200/1000 PDS @960 con riduttore Tecnosky

Camera ToupTek 571c

Guida Phd2 con ASI 224 tele 60/240

Montatura Sky-Watcher Eq6r pro

Light 55 da 300" filtro Optolong L-Ultimate

Light 127 da 180" filtro Optolong L-QEF

Software di acquisizione N.I.N.A.

Stacking DSS, elab. PixInsight e Photoshop

Ripresa del 12/18/19/20 Settembre 2024

Sannicola LE Italy

SQM 19.48

30x600" Lights

10x600" Darks

The Horsehead and Flame Nebulas

The constellation of Orion is only visible for about an hour and a half from my Bortle 8 backyard so it will take me a few clear nights to collect the 4 to 6 hours of data that I'd like for a final image.

I'm off to a good start with only 33 x 5 minute exposures.

ZWO ASI294 MC Pro camera, Optolong L-Extreme filter, Willlian Optics Redcat 51 telescope, ZWO ASIair Plus computer, iOptron GEM 28 mount.

L'Amas globulaire M15 (Messier 15 ou NGC7078) est l'un des amas les plus compact de la galaxie. Situé dans la Constellation de Pégase, il se trouve à environ 33000 années lumière de la Terre. Il a été découvert par Jean-Dominique Maraldi en 1746 et ajouté au catalogue de Messier quelques années plus tard.

M15 is a globular cluster in the constellation Pegasus. It is is one of the most densely packed globulars of the Milky Way galaxy.

*Acquisition:

Nikon D5300 + Zenithstar 73

iOptron CEM26 + iPolar

Optolong L-Pro

ZWO ASI224MC + WO Uniguide 120mm

26 x 3min (Exp=78min) -- ISO400

Astro Photography Tool (APT) & PH2D

*Traitement :

Siril & Gimp

AstroM1

(rsi1.b2)

Not sure which edit I like better this one is done using GraXpert or the first edit I did.

Image acquisition Narrowband:________________

103 Light Frames

40 Dark Frames

40 Flat Frames

40 Offset/Bias Frames

Exposures 300 Sec

ISO-1600

Equipment:__________________

Telescope: ES ED102CF FCD-100 F7-714mm

Orion .8x focal reducer

ZWO ASIAir Plus

Mount: ZWO AM5

Camera: Nikon D7000 Stock

Optolong L-Enhance Dual Narrowband Filter

Image acquisition-Full Color image:________________

98 Light Frames

40 Dark Frames

40 Flat Frames

40 Offset/Bias Frames

Exposures 300 Sec

ISO- 800

Equipment:__________________

Telescope: ES ED102CF FCD-100 F7-714mm

Orion .8x focal reducer

ZWO ASIAir Plus

Mount: ZWO AM5

Camera: Nikon D7000 Stock

Baader Moon & Sky Glow filter

Auto Guiding:____________________

ASIAir PHD guiding

Camera: ZWO ASI178MM

Guide Scope: SVBony 60mm x 240mm

Post Processing:_________________

GraXpert V-3.0.2

Sirilic V-1.15.2

Siril V-1.2.4

GIMP V-2.10.38

Total Exposure Time: 16Hrs. 45Mins.

This is the other celebrated part of the Veil Nebula, the Eastern Veil.

Canon 200mm f/2.8 (shot @ f/4); ASI585MC (uncooled); Sky Adventurer GTi mount; Optolong L-Ultimate dual narrow-band filter. Thirty 2-minute light frames with calibration frames collected using NINA. Post-processed with Siril and Photoshop.

September 12, 2025; Tallahassee, Florida. Bortle 7. It was a nice clear night with reasonable seeing. I used an old SBIG ST-1i camera with a C-mount 100mm lens for guiding. It's about 12-years old, but seems to still have some utility left in it. It's sensor has super large pixels, about 7.5um.

This was the first light for the GTi so this was a "shake-down cruise" as I familiarized myself with it's performance. I was not able to view Polaris and could not do an accurate polar alignment. I roughed it in and think I got close. My guiding's average error was 2.5 arc-seconds, so that's not too bad. As the night progressed and seeing improved, the error dropped to 2 arc-seconds.

I'm happy with how the stars look. They are blotted with some color fringing, but that may be due to the lens and filter I used. Wide-field astrophotography is so forgiving. I'm happy thus far with the GTi. It's so much lighter compared to my other mounts. My back appreciates it. You do have to mindful of the payload you put on it.

250912_NGC6960_EASTERN_VEIL

A widefield shot composed to show the Pencil Nebula - the bright blue streak at upper left - in context, with the Vela supernova remnant filling the rest of the frame. The Pencil nebula is part of the Vela SNR.

This image is an integration of nearly 8 hours of data captured on an ASI2600MC Pro camera with a William Optics Redcat51 telescope and an Optolong L-eXtreme filter. All post-processing was carried out in PixInsight.

Telescopio: Orion 80ed + Orion FR 0.8x

Cámara: ZWO ASI1600MM-C

Filtros: Ha OIII SII Optolong (12nm)

Autoguia: EZG-60 + Orion Starshoot Autoguider

Montura: Celestron CGEM

Ha: 20x600s

OIII: 15x600s

SII: 16x600s

Bin: 1x1

Palette: SHO (Hubble)

Focal Distance: 480mm

F: 6

Pixinsight 1.8

Observatorio Astronómico Altaír

Poncitlán Jalisco México

Guillermo Cervantes Mosqueda

ccd: Moravian G3-16200 with EFW + OAG

filters: Optolong LRGB and Astrodon 5-nm Ha/O3

telescope: FSQ 106N f/5

mount: 10Micron GM2000 QCI

guider: Lodestar X2

exposure: L 30x10min + RGB 20x5min (all 1x1)

location: Les Granges, 900 m (Hautes Alpes, France)

software: TheSkyX Pro, CCD Commander, Pixinsight, PS CC

date: 23 Sep - 7 Oct 2019

Discovered by Charles Messier in 1773, M51 is located 31 million light-years from Earth in the constellation Canes Venatici. It has an apparent magnitude of 8.4

Also in this image IC4263 (top right), NGC5195 (also known as Messier 51b or M51b) is a dwarf galaxy that is interacting with M51, IC4277 and IC4278 (just below NGC5195)

Mar 2022, Jan and April 2023

Celestron RASA 8"

ZWO183mc pro

ZWO EAF

Optolong l-Pro

ZWO air pro

Sky-Watcher HEQ5 Pro

138 x30s and 69 x120s (3.25 hrs total) Lights, Flats , Darks and Bias.

Gain 122 at -10C

Processed in Pixinsight and Photoshop

An integration of 135 x 120 second frames in each of Red, Green and Blue channels. Captured on a QHY163M with Optolong RGB filters. Optics were a William Optics FLT110 with Flat4, mounted on a Skywatcher AZ EQ6-GT. Image sequencing was managed with Sequence Generator Pro and PHD2, with autofocus enabled via a Lakeside Astro motorized focuser. All post-processing was carried out in PixInsight.

Photographed from Prachinburi, Thailand.

NGC 2547, is a southern open cluster in Vela constellation.

The image was taken from my backyard with the following setup:

*Telescope: refractor Orion ED80 (600mm focal length);

*Mount: SkyWatcher HEQ5 Pro;

*Camera: QHY163M

*Filters: H-alpha 7nm Baader and LRGB Optolong;

*Local: Silvânia/GO/Brazil

Imaging parameters:

*27 frames with 300 seconds (h-alpha 7nm filter);

*38 frames with 300 seconds (Luminance filter);

*12 frames with 180 seconds (Red filter);

*12 frames with 180 seconds (Green filter);

*14 frames with 180 seconds (Blue filter).

From an image session to image both M16 and M17. Low on the horizon, with passing clouds. Only 28 subs survived but M16 (The Eagle nebula with the "Pillars of creation") comes out nice enough. Esprit 100 f5.5 APO refractor and canon 6Da with Optolong L (IR/UV cut) filter. Processed with DSS and PI. 28x180sec iso1600 8Darks, 30Flats, 174Biasframes.

Knight Observatory, Tomar

Messier 16 Eagle Nebula

Palette Hubble SHO & RGB combination

Made from La Jonquera, Ager & St Quirze de Colera - Girona - Spain in August 2012, September 2015 y 2019

Equipment used

- Telescope Long Perng ED90

- Telescope MN190

. Telescope ImagingStar71

- Mount Orion Atlas EQ-G & SkyWatcher EQ6

- CCD Atik 383L +

- Canon 550D mod

- Guide tube EZ60

- Guiding ccd Starlight Xpress Lodestar guide

- 15x900" Atik 383L + Baader H-Alpha 7nn

- 15x900" Atik 383L + Baader OIII 8,5nn

- 15x900 Atik 383L + Baader SII 8nn

- 12x1200" Canon 550D mod + Optolong H-Alpha

- 12x1200" Canon 550D mod + Optolong SII

- 12x1200" Canon 550D mod + Optolong OIII

- 20x600" Canon 550D mod + Optolong L-eNhance

- 20x600" Canon 550D mod RGB

Calibrated, stacking and image processing with Pixinsight, combined in SHO + RGB palette, final retouch Lightroom

The Cygnus Wall in NGC 7000

The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. (Wikipedia.org)

The Cygnus Wall feature of NGC 7000 is shown when you turn the North America shape 90 degrees counter clockwise and zoom into the area that had been considered to be the shape of the Gulf of Mexico.

Technical Information for Image

Telescope: William Optics Zenithstar 81 Refractor

Mount: iOptron CEM25P

Imaging Camera: ZWO ASI294MC Pro. Gain 120. Cooled to -5C.

Filter: Optolong L-Enhance Dual Band Ha and OIII

Guiding: William Optics 50mm, 200mm FL, ASI290MC camera

Exposures: 24 x 300s each Bin 2x2

Capture: ASIAIR Pro

Guiding: ASIAIR Pro through ASI290MC camera

Polar Alignment: ASIAIR Pro

Site: California, USA, Captured from a city center. Bortle 8.

Processing: Pixinsight with Final Touchup in Corel PaintShop Pro.

Low on the horizon, with passing clouds. Only 28 subs survived. Esprit 100 f5.5 APO refractor and canon 6Da with Optolong L (IR/UV cut) filter. Processed with DSS and PI. 28x180sec iso1600 8Darks, 30Flats, 174Biasframes.

Knight Observatory, Tomar

M92 Globular Star Cluster

The Elephant Trunk Nebula is cloudy collection of dust and gas is known for its long and snout-like shape of an elephant. It's located 2,400 light-years from Earth and can be found the constellation Cepheus (named after the King of Ethiopia in Greek mythology).

Telescope: William Optics ZenithStar 81 Refractor

Mount: Fornax Lightrack II

Imaging Camera: ZWO ASI 2600 MC Pro

Filter: Optolong L-eXtreme Dual-band Filter

Site: Elk Grove, California, USA Bortle 6

Processing: DSS, siriL, Photoshop 2020, DXO PhotoLab 4

Calibration Files: None

Guiding: None

H-Alpha (26 de Octubre de 2017 OAA):

Telescopio: Orion 80ed + Orion RF 0.8x

Camara: ZWO ASI1600MM-C

Filtros: Ha 12nm Optolong + Rueda Filtros

Guiado: EZG-60 + Orion Starshoot Autoguider

Montura: Celestron CGEM

Datos de Toma:

Ha: 10x600s

Darks: 20x600s

Bias: 20

Bin: 1x1

Temperatura: -10°C

Pixinsight 1.8

Observatorio Astronómico Altaír

-------------------------------

Telescopio: Celestron XLT-150 Newton con Baader MPCC

Camara: Canon 60D modificada, ISO 2000 + IDAS LP-V4

Guiado: 60mm f/4+ ZWO ASI034 + iAstrohub

Montura: Celestron CGEM

Datos de Toma:

Lights: 21x400s

Darks, Bias, Flats

DSS

-------------------------------

Ambas tomas desde Poncitlán Jalisco México

Copyright and personal information:

My name: Cornelis van Zuilen

My website: www.CVZastro.com

Heiloo, The Netherlands

Equipment used:

Telescope: Askar 103APO

Main camera: ZWO AS2600MC AIR

Filters: Optolong UV/IR cut

Mount: Skywatcher EQ6-R Pro

Exposures:

2hr 27min

49x 180sec

Calibration frames

20 Darks

20 Flats

20 Dark flats

Processed in Pixinsight & Photoshop

4 panels (each 4x60s stacked) for the sky & 3 panels (5x60s) for the foreground Nikon D600 full spectrum Optolong L-Pro clip filter Nikkor AI 50mm f/1,2 @ f/2,8 ISO 1600

Efix: SW Esprit 100 +ASI1600MM pro + Optolong Ha, OIII and SII filters. SW NEQ6 pro Rowan mod. Guide: QHY5L-II and 60mm guidescope. 224x180” Ha, 115x180” OIII, 140x180” SII. Gain 139. 140 Darks, 120 flats per filter. Edit: PixInsight and Photoshop

Wizard Nebula, Cepheus, taken with Artec 200 Artesky, QHY268c, Optolong L-Ultimate.

40x420 seconds, gain 100.

AZEQ6 mount.

Location: Chantel, Aosta Valley, November 2022.

Post opposition, 12-07-2019

OTA: SW Mak-Cass 127 @ f12.7, 1500mm fl

Imaging: AS120MM-S, unguided

Mount: Az-GTi (Alt-Az mode)

Filters: Optolong LRGB

Sequencing & Capture: ASICAP

9,568/11,960 frames, 66 Gain, 0.2ms

PP: Autostakkert 2.0, Fitswork, PixInsight, GIMP 2.0

Planetary Workflow Routine:

Data Processing 1 - Autostakkert 2.0

1. Analyse & Drizzle Capture Data

2. Stack % frames according to quality graph analysis

3. Normalisation @ 30%, Sharpen @ 50%

4. Drizzle set to 3.0

5. Alignment Point - Manually acquire 15-20+ APs by manipulating AP size

6. Export extension .TIFF

7. Run through sequence 1-6 for all color channels

Data Processing 2, Channel Combination - FitsWork

1. L+RGB Image Combination, Autoscale

2. Export extension .TIFF/PNG

Image Enhancement - PixInsight

1. Dynamic Background Extractor

2. Color Calibration

3. Curves Transformation

Notes:

1. A 210s total sequencing time to prevent/reduce hints of planetary rotation and hence correction (TBC).

Telescope: William Optics ZenithStar 81 Refractor

Mount: Losmandy GM811G

Imaging Camera: ZWO ASI 2600MC Pro

Filter: Optolong L-eXtreme Dual-band Filter

Site: Elk Grove, California, USA Bortle 6

Processing: DSS, Photoshop 2020, DXO PhotoLab 4

Calibration Files: None

Guiding: None

Primo piano del Muro del Cigno distante circa 2.200 anni luce, fa parte della più estesa Nebulosa Nord America ( NGC 7000 )

Telescopio SW Newton 200/1000 PDS @950 riduttore TS, Camera Qhy294c pro guida phd2 con Asi 224, mont. Eq6r pro, light 260 da 120" tot.8 h e 40 minuti, filtro Optolong L-QEF 2" , software di acquisizione N.I.N.A. stacking DSS elab. PixInsight + Photoshop.

Ripresa del 21 e 22 Giugno 2024

Messier 31 taken on 2nd October 2022. 23 x 240s exposures taken with a SkyWatcher Esprit 100ED and ZWO ASI294MC Pro cooled to -10 with Optolong L-Pro filter. Stacked using Astro Pixel Processor and processed in StarTools. This is a "work in progress", with more data to be added when the weather allows.

Also known as the Beehive cluster. M44 lies at 577 light years from Earth in the constellation of Cancer and spans about 15 light years across. In total there is estimated to be over 1,000 stars associated with this cluster. At around 600 million years old this cluster is quite young, when compared to our Sun's 4.5 billion years.

Boring techie bit:

Skywatcher Quattro 8" Newtonian Reflector steel tube with the f4 aplanatic coma corrector, Skywatcher EQ6 R pro mount, Altair Starwave 50mm guide scope, ZWO asi120mm guide camera mini, ZWO asi533mc pro cooled to -10c, Optolong L'enhance 2" filter, ZWO asiair plus.

Stacked with DeepSkyStacker and processed in StarTools.

Enhanced & lightpainted w/ led headlamp

4 panels (each 4x60s stacked) for the sky & 3 panels (5x60s) for the foreground Nikon D600 full spectrum Optolong L-Pro clip filter Nikkor AI 50mm f/1,2 @ f/2,8 ISO 1600

Sorry, no Eta Aquariids...

CCD Moravian G2 8300 - 135mm Samyang lens f/2 @f/3.5

Frames: H Alpha 7nm + OIII 6.5nm 21X420 sec. each Bin1 -20°

Filters: 31mm unmounted Optolong

Colors: Canon 600D - 135mm Canon lens f/2,8 @f/4

Frames: 120X120 sec. ISO 800

Mount: Ioptron CEM60 HP

Processing: Pixinsight, Photoshop

This is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion. It lies in the Eridanus constellation, about 900 light-years from Earth. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its blue color. (Source: Wikipedia)

Esprit 100mm f5.5 triplet APO/ Canon 6Da/ Optolong-L-/ 10 Micron HPS2000 II.

72x240 second iso1600, 33Flat frames, 174 Bias frames (5/6 december 2016)

Knight Observatory, Tomar

On the border of Canis Majoris and Monoceros, a grouping of three small nebulae. At upper left is the emission nebula Sharpless 291 while at lower right is the reflection nebula vdB 87, The nebula near the middle is LBN 1022 and is associated with a variable star V* V900 Mon.

This image is an integration of data captured with Hydrogen alpha, red, green and blue filters; there is about 6 hours data for each filter. The camera was an ASI294MM and the scope was a William Optics Zenithstar 103. All processing was carried out in PixInsight.

IC 1805 The Heart Nebula and Mellote 15

The Heart Nebula, IC 1805, Sharpless 2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It was discovered by William Herschel on 3 November 1787. It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.

The brightest part of the nebula (a knot at its western edge) is separately classified as NGC 896, because it was the first part of the nebula to be discovered. The nebula's intense red output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars, known as Collinder 26 or Melotte 15, contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass. (Wikipedia.org)

Technical Information for Image

Telescope: William Optics Zenithstar 81 Refractor

Mount: iOptron CEM25P

Imaging Camera: ZWO ASI294MC. Gain 120. Cooled to -5C.

Filter: Optolong L-Pro

Guiding: William Optics 50mm, 200mm FL, ASI290MC camera

Exposures: 45 x 240s Bin 2x2

Capture, Guiding, Polar Alignment: ZWO ASIAIR PRO

Site: Borrego Springs, CA USA, Bortle 4

Processing: Pixinsight with Final Touchup in Photoshop CC

IC 405 (a la derecha de la imagen) también se conoce como la Nebulosa de la Estrella Flameante. Es a la vez una nebulosa de emisión (brillo del gas ionizado) y reflexión (luz reflejada en el polvo).

IC 410 es una hermosa y compleja nebulosa de emisión de aproximadamente 12,000 años luz ubicada en el cielo a solo 1,5 grados de distancia de IC 405. La característica distintiva de IC 410 son los dos "renacuajos" en la parte inferior, que son ejemplos espectaculares de formación de estrellas.

IC 405 ( to the right in this image) is also known as the Flaming Star Nebula. It is both an emission (glow from ionized gas) and reflection (light reflected from dust) nebula.

IC 410 is a beautiful and complex emission nebula about 12,000 light-years located in the sky just 1.5 degrees away from IC 405 The distinguishing feature of IC 410 are the two "tadpoles" at the lower, which are spectacular examples of star-forming

Canon 6D mod - TS Imaging Star71 - WO SpaceCat 51

RGB 25 x 600" ISO 3200 - Optolong L-eNhance filter

H-alpha 12 x900" ISO 3200 - Optolong H-Alpha filter

La Jonquera & Albanyà - Girona

www.instagram.com/astrometbcn

Canon 6D + Star71 + SpaceCat 51

RGB 25 x 600" ISO 3200 Optolong L-eNhance filter

H-alpha 12 x900" ISO 3200 Optolong H-Alpha filter

La Jonquera & Albanyà - Girona

Instrument de prise de vue: Sky-watcher T250/1000 Newton F4

Caméra d'imagerie: ZWO ASI294mc

Monture: Skywatcher AZ-EQ6 Pro Goto USB

Instrument de guidage: Lunette Ø80x320

Caméra de guidage: ZWO 120 mini

Chercheur : Obj. 28mm + Bresser IMX225 c +

Logiciels acquisition: Stellarium - ScharpCap - PHD2 Guiding

Logiciels traitement :Siril - Starnet++ - FitsWork - Gimp - Darktable - FastStone Images Viewer

Filtres: Optolong L-PRO

Accessoire: GPU coma-correcteur Sky-watcher - Focuseur ZWO EAF

Dates: 26 Aout 2024 - 00h12 TU

Images unitaires: 67 x 300"

Intégration: 5h 35 min.

Gain :121

Échantillonnage: 0.96 "/px

Seeing: 2.06 "Arc

Bortle: 5

Phase de la Lune (moyenne): 49 %

Thor's Helmet -NGC 2359 -imaged in HOO (Hydrogen data mapped to red and Oxygen data mapped to Green and Blue)

Total integration -12 hours- 6 hours each in Ha and OIII respectively,

Data captured over 4 imaging sessions over January and February 2023

Equipment

EQ 6 pro- Rowan belt modded

Sharpstar Z4 (100 mm f 5.5)

ZWO ASI 533 MM

ASIAAIR

Optolong 3 nm OII Filter

Atlia 3 nm H alpha Filter

Software

ASIAIR app

Astro Pixel Processor (APP)

Photoshop CS 6 (with NoiseXterminator plug in)

Starnet ++ v2

Processing notes

1.

Stacked Ha and OIII data

separately in APP

2. Registered stacked (linear) images

3. RGB combined using HOOO 1algorith

3.

applied 20%- 5 - 0 stretch in APP

4.

Star removed with Starnet++

5.

Starless image stretched in Photoshop CS 6. Noise removed with NoiseXterminator

6

star layer added back for final image

A stack of 4 x 15 minute exposures at F4 through 400mm lens. Taken through Optolong Ha 7nm filter in Sydney suburbs. No darks or flats used.

The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter.

Photographed from my Bortle 5 location at 35.08 N latitude. 60 x 300s lights with darks, flats and dark-flats, WO GT71, ASI2600MC, Optolong L-Extreme filter, HEQ5 Pro, ASIAIR Pro, EAF, Siril, GIMP.

I know Patience is the key but efficiency too. I was a bit upset to drop a lot a frames so I decide to upgrade my setup.

After the ASIAIR Guiding Bundle allowing me to make an accurate Polar Alignment and some useful guiding, I decided to add a One Shot Color Camera to my rig. The little Sensor of the ZWO 533MC fit kindly with my 250mm Focal Length. With the Optolong L-Extreme Filter my setup is almost completed. Now, Time to Shoot :)

RCW is an oval shaped emission nebula in the Constellation Norma created by the Wolf Rayet star HD 147419

The region is blanketed in HAlpha emission. In an effort to pick up OIII emissions I integrated nearly three times as much data in OIII as in Ha to produce this image

Total integration 19 hours collected over 5 nights

15 hours in OIII and 4 hours in H alpha ( 10 minute subs)

Equipment

Sharpstar Z4

HEQ5

ZWO ASI 533 MM pro

Antlia 3 nm H alpha Filter

Optolong 3 nm OIII Filter

ASIAR

Software

ASIAIR

AstropixelProcessor

PixinSight

Photoshop CS6

Processing notes-

Ha and OIII data processed independently

Stack

GradientCorrection

BlurX (Correct Only)

Starnet++

Nebula

Blemish Blaster (OIII only)

BlurX

Noise X

GHS

CurvesTransformation

Stars

Setiastro StarStretch script

Stars combined with

PixelMath

HOO image created using ChannelCombination

SelectiveColour

Minor tweaking in CS6

Na região da constelação de Monoceros, com um diâmetro aproximado de 130 anos luz e a 5.200 anos luz de distância, está localizada essa gigantesca nebulosa. NGC's 2237, 2238, 2239, 2244 e 2246 compõem esse magnífico objeto. Com uma magnitude em torno de 9,0 esse nebulosa é muito tênue e é um alvo bem desafiador para uma dslr.

Refletor GSO 305mm + AZ/EQ-6.

Canon 6D mod. + cooler box.

Corretor de coma Baader MKIII.

Filtro CLS-CCD Optolong.

CLS-ccd: 20 x 300 ISO 1600.

H-alpha: 15 x 300 ISO 1600.

——— STRUMENTAZIONE ———

Obiettivo: Samyang 135mm f2

Camera: Zwo Asi 294 mc color pro

Montatura: Skywatcher AZ-EQ5

Autoguida: Zwo mini guide con zwo asi 224mc

Filtro: Optolong L-extreme

Software d'acquisizione Sgpro

————— FOTO ————

temp 0 con dark, flat e darkflat

300s x 120scatti

—— ELABORAZIONE ——

Pixinsight

Photoshop

Telescopio: GSO RC14 F8

Camera Cmos: Player One Poseidon-M PRO

Montatura: IOptron CEM120EC

Guida Telescopio:PLAYER ONE FHD-OAG MAX Lodestar X2

Software: Voyager - PixInsight

Light: L 39X120S BIN 2X2 - R 24X120S BIN 2X2 -G 24X120S BIN 2X2 - B 24X120S BIN 2X2 - HA 20X300S BIN 2X2 - OIII 20X300S BIN 2X2 - 11 Dark 11 Flat 11 Bias

Filtri: Optolong L 50.8 – Optolong R 50.8 – Optolong G 50.8 – Optolong B 50.8 – Optolong HA 3NM 50.8 – Optolong OIII 3NM 50.8 – Optolong SII 3NM 50.8

Accessori: Pegasus Astro Ultimate Powerbox· Focheggiatore Elettronico FocusCube V2 Pegasus Astro

Data: 08-04-2025 10-04-2025 11-04-2025

Luogo di Ripresa: Gualdo Tadino(PG) Italia

Luna: 85% 96% 98%

Technical Information:

Telescope: AIRY APO 130T Reduced f/5.3

Mount: NEQ6-Pro

Camera : QHY168C -- GAIN:10 ; OFFSET:32 -- -20°C

Filter: Optolong 2" L-Pro

Frames: RGGB 150 x 240s

Total Integration: 10 Hours

Software: SGP – PHD2 – PixInsight – CS6

Location: Noventa di Piave (Venice) 4 meter above sea level – ITALY

Environment Temperature: About 15°C

Relative Humidity: 88%

Date: 19.04.18 - 20.04.18 - 21.04.18

NOTE: The image was acquired from a very polluted sky ( Red Zone - where I live ).

I am very happy with this result that I could get following (as always) Terry Hancock's instructions ! Thank you, teacher :)

I think that I could have arrived at the same result with 7/8 hours of exposure time, instead of 10.

As I did in the previous image, I wanted to propose the same NGC4565 in another position.

CCD Moravian G2 8300 - 135mm Samyang lens f/2 @f/3.5

Mount: AP GTO1200

Frames: RGB: 5X600 sec. each - H Alpha 7nm 15X600 sec. Bin1 -20°

Filters: 31mm unmounted Optolong

Autoguider: ZWO ASI290MM mini on ZWO 30 F/4, Phd guiding

Processing: Pixinsight, Photoshop

Equipo Principal: StellarVue SXV80-3SB + SFFX1 Flattener + QHY183M + ZWO EAF + ZWO 2" FD + SW EQ6-R-Pro

Equipo guía: QHY5iii-462c (UV/IR cut filter) + ZWO OAG

*Gain 10, -15 º C, Ha 7nm 2" Optolong, 88x300"

*Gain 10, -15 º C, Oiii-CCD 6.5 nm 2" Optolong, 85x300"

*Gain 10, -15 º C, Sii-CCD 6.5 nm 2" Baader, 50x300"

Tiempo total de integración: 18.6 h

100 Darks

50 Flats por filtro

50 Dark-Flats por filtro

Polar Align: SharpCap 4

Adquisición: SGP 3.1

Procesado: Pixinsight 1.9.3, PS, RC Astro plugins

Dedicada a mi perrita Canela, quien falleció hace 1 año.

Dedicated to mi dog Canela, who past away a year ago.

Discovered in December of 1948 by Moniru Honda, this comet is named after Minoru Honda, Antonín Mrkos, and Ľudmila Pajdušáková. The short period comet

Whale Galaxy and Hockey stick Galaxy visible at the top.

Camera: ILCE7S JTW modified

Optolong L-PRO MAX Luminosity Filter

Scope: Evostar 80ED DS-Pro w/ field flattener

mount: HEQ5Pro

Unguided

6 frames 1m9s each = 7m55s total exposure