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Fish Head Nebula or LBN 645

 

Skywatcher 200p, NEQ6 mount, Altair Triband filter, Baader MPCC M3 coma corrector, ASI294MC Pro at -20C.

 

NINA Observatory Software.

 

24 x 300 second (2 hours) at Gain 350, Offset 30, dithering every 3rd frame, 40 dark frames, 40 flat fields, 40 dark flat frames.

 

Processed in APP (using Ha-OIII formula), Topaz de-noise and Photoshop. .

 

9th/10th April 2021.

www.astrobin.com/314511/

 

Technical card

Imaging telescope or lens: GSO RC8 Carbon Fiber

Imaging camera: ZWO ASI1600MM-Cool

Mount: Skywatcher AZ EQ-6 GT

Guiding telescope or lens: Celestron OAG Deluxe

Guiding camera: QHYCCD QHY5III174

Focal reducer: Astro-Physics CCDT67 - 0.67x Reducer

Software: Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight

Filters: Baader Planetarium OIII 1.25" 8.5nm, Baader Planetarium Ha 1.25" 7nm, Baader Planetarium SII 1.25" 8nm, ZWO green, ZWO blue

Accessories: ZWO EFW, Baader Planetarium Steeltrack 2"

Resolution: 4352x3140

Dates: Sept. 20, 2017

Frames:

Baader Planetarium Ha 1.25" 7nm: 60x300" (gain: 200.00) -20C bin 1x1

Baader Planetarium OIII 1.25" 8.5nm: 13x300" (gain: 200.00) -20C bin 1x1

Baader Planetarium SII 1.25" 8nm: 13x300" (gain: 200.00) -20C bin 1x1

ZWO green: 20x60" (gain: 200.00) -20C bin 1x1

ZWO red: 10x60" (gain: 200.00) -20C bin 1x1

Integration: 7.7 hours

Avg. Moon age: 29.31 days

Avg. Moon phase: 0.06%

Astrometry.net job: 1751696

RA center: 344.191 degrees

DEC center: 62.615 degrees

Pixel scale: 0.688 arcsec/pixel

Orientation: 84.523 degrees

Field radius: 0.512 degrees

Locations: Berga Resort, Berga, Barcelona, Spain

NGC 6357 in Scorpius

Skywatcher Quattro 10" f4 Newtonian.

Skywatcher AZ Eq6 GT Mount

Orion 80mm f5 guide scope and auto guider - PHD2.

Baader MPCC Mark 3 Coma Corrector, UHC-S 'nebula' filter.

Nikon D5300 (unmodified).

Field of view (deg) ~ 1.35 x 0.90.

UHC-S - 100 x 100 sec ISO800 (14bit NEF, Long Exp. NR on).

Pixinsight and photoshop

5 October 14

reprocessed 9 Aug 15

Skywatcher 190MN telescope, Ioptron CEM70 NUC mount, Altair Tri-Band filter, ASI2600MC Pro at -20C.

 

51 x 5 minute and 25 x 3 minute exposures (5 hours 30 minutes) at Gain 100, Offset 50, 50 dark frames, 50 flat fields and 50 dark flat frames.

 

Processed in Pixinsight, Topaz denoise, and Photoshop.

 

Collected between 23-05 on the 12th October and 3-08 on the 13th of October and 20-00 and 22-02 on the 14th of October 2022.

 

3 minute exposures taken by accident instead of 5 minute exposures.

 

Skywatcher 80ED

F=500mm

Skywatcher 150/750

HEQ 5 Pro Go To

ASI 183 MC PRO

34*300s with DOF 60/0/10

20*60s with DOF 100/0/10

Bin 2x2

Gain 0 Offset 7

Temp -10°C

Pre and post processing with Pixinsight

Skywatcher 300PDS & DMK21 camera

Imaging telescope or lens:Skywatcher Esprit 80 ED Triplet Super Apo

Imaging camera:ZWO ASI 183 MM PRO

Mount:SkyWatcher NEQ6 Pro Goto

Guiding telescope or lens:Skywatcher Esprit 80 ED Triplet Super Apo

Guiding camera:Astrolumina Alccd5L-IIc

Focal reducer:Skywatcher Field flattener for Esprit 80mm

Software:Main Sequence Software Seqence Generator Pro, Adobe PhotoShop CS5, FitsWork 4, DeepSky Stacker Deep Sky Stacker 3.3.4, PHD2 Guiding

Filters:Baader Ha 1.25" 7nm, Baader Planetarium SII 1.25" 8nm, Baader Planetarium O3 1.25" 8.5nm

Accessory:TSOptics TS Off Axis Guider - 9mm

Dates:May 14, 2019, May 23, 2019, May 29, 2019, June 1, 2019

Frames:

Baader Ha 1.25" 7nm: 44x600" (gain: 200.00) -20C bin 1x1

Baader Planetarium O3 1.25" 8.5nm: 27x600" (gain: 200.00) -20C bin 1x1

Baader Planetarium SII 1.25" 8nm: 25x600" (gain: 200.00) -20C bin 1x1

Integration: 16.0 hours

Darks: ~50

Flats: ~27

Bias: ~100

 

Object description (wikipedia.org):

 

The Elephant's Trunk nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth. The piece of the nebula shown here is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD 206267) that is just to the west of IC 1396A. (In the Figure above, the massive star is just to the left of the edge of the image.) The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays.

 

The Elephant's Trunk nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr) stars that were discovered in infrared images in 2003. Two older (but still young, a couple of million years, by the standards of stars, which live for billions of years) stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity.

 

The combined action of the light from the massive star ionizing and compressing the rim of the cloud, and the wind from the young stars shifting gas from the center outward lead to very high compression in the Elephant's Trunk nebula. This pressure has triggered the current generation of protostars.

Skywatcher ST80 on tripod

ZWO ASI120MC

Registax - CS6

Sunflower Galaxy or M63

 

Skywatcher 200p, NEQ6 mount, UV/IR Cut filter, Baader MPCC M3 coma corrector, ASI294MC Pro at -20C.

 

NINA Observatory Software.

 

14 x 300 second (1 hours 10 minutes) at Gain 350, Offset 30, dithering every 3rd frame, 40 dark frames, 40 flat fields, 40 dark flat frames.

 

Processed in APP (using Ha-OIII formula), Topaz de-noise and Photoshop.

 

The centre is unfortunately over exposed.

 

11th/12th April 2021.

Skywatcher 150PDS

Celestron CG5

TS optics 3x Barlow lens & Nikon 2x teleconverter

Microsoft LifeCam Studio

 

Firecapture v2.4

5000 frames total

 

AS!3 top 50% of frames stacked

RegiStax 6 wavelets

GIMP 2.10

Sky-Watcher Quattro 150P f/3.5

Altair Astro Hypercam 585C OSC (Offset:10 / Gain:100)

HDR mode on

 

156 x 60 sec. subs (~2.5hrs.)

 

Processed in Astro Pixel Processor, GraXpert and Affinity Photo

18 x 30 min Ha. Next up is OIII fingers crossed for some clear nights over Christmas

 

9 Hrs in total.

 

Optics: Takahashi Baby Q FSQ-85ED F5.3

 

Camera: Xpress Trius SX-694 Mono Cooled to -15C

 

Image Scale: 2.08 Arcsec

 

Guiding: OAG, Lodestar X2

 

Filter: Baader Ha

 

Mount: Skywatcher AZ EQ6-GT EQ & Alt-Az Mount connected to the Sky X and Eqmod via HitecAstro EQDIR adapter

 

Image Acquisition: Sequence Generator Pro

 

Stacking and Calibrating: Pixinsight

 

Processing: Pixinsight 1.8, Photoshop CC

Skywatcher 190MN, NEQ6 mount, Altair Tri-band filter, ASI294MC Pro at -20C. 21 x 5 minute exposures (1 hours 45 minutes) at Gain 120, Offset 30, 50 dark frames, 50 flat fields and 50 dark flat frames.

 

Processed in APP, Pixinsight Topaz denoise and Photoshop.

 

Collected on the evening of the 1st of March, 2022 between 21:59 and 23:55.

Skywatcher 190MN, NEQ6 mount, Altair Tri-|Band filter, ASI294MC Pro at -20C. 16 x 5 minute exposures (1 hour 20 minutes ) at Gain 120, Offset 30, 50 dark frames, 50 flat fields and 50 dark flat frames.

 

Processed in Pixinsight Topaz denoise and Photoshop.

 

Collected between 23:40 and 0:55 on the 16th and 7th of March, 2022.

 

Lots of thin cloud illuminated by a bright moon.

Skywatcher T250/1000 Newton F4

Player-One Uranus-C IMX585

Skywatcher AZ-EQ6 Pro Goto USB

Logiciels acquisition: Stellarium - SharpCap

Logiciels traitement : PIPP - AutoStakkert - Pixinsight

Filtres: IR cut

Accessoires: Focuseur ZWO EAF - Barlow Kepler x2.5

Dates: 18 Janv. 2025- 22h38 GMT

Images unitaires: SER (1054x3.36ms) 10% de 10541

Gain: 330

Échantillonnage: 0.137 "/pixel

Focale résultante: 4390mm

F/D: 17.56

Seeing: 1.10 "Arc

Bortle: 5

Phase de la Lune (moyenne):72%

 

M33, the Triangulum Galaxy.

 

Mount: SkyWatcher NEQ6.

Camera: ASI1600MM.

Telescope: SkyWatcher Newton 150/750.

Flattener: Baader MPCC Mark III.

Filters: Baader RGB, ZWO H-alpha.

Exposition: L: 93 x 120s, RGB: 12 x 120s (x 3), H-alpha: 5 x 300s.

Capture software: CCDciel, ASTAP, PHD Guiding.

Proccessed with PixInsight.

Shot through a SkyWatcher 80mm refractor.

Taken with a Skywatcher ED100 Refractor with a Canon 600D at prime focus ( 900mm ) processed in mono as did not want a blueish sky in the picture :-) Best 15 of 45 shots stacked in Registax 6, seeing was average to poor with noticeable shimmering. All frames shot in JPG, not RAW.

Skywatcher 190MN, NEQ6 mount, Altair Tri-band filter, ASI294MC Pro at -20C.

 

45 x 5 minute exposures (3 hours and 45 minutes),

 

Gain 120, Offset 30, 50 dark frames, 50 flat fields and 50 dark flat frames.

 

Processed in APP, Pixinsight and Photoshop.

 

Imaged between 22:45 and 02:55, on 16/17th of December 2021.

Nel 2010 ho comprato una SkyWatcher HEQ5 Pro usata. Era praticamente nuova ed usata pochissimo.

Durante i primi utilizzi mi resi conto che qualcosa non funzionava bene durante l'autoguida (a volte i frame presentavano le stelle allungate già con focali corte di 560mm). Ho fatto allora alcuni test per cercare di capire e risolvere il problema. Ho utilizzato per i test il riflettore SC C8 ridotto a 1650mm di focale e la Magzero MZ5m. Ebbene osservando il grafico AR con l'autoguida abilitata e disabilitata avevo capito che il problema non era software ma era dovuto alla montatura.

Infatti con l'autoguida disabilitata il grafico presentava oscillazioni in AR con continui massimi-minimi +3-4/-3-4 pixels che si ripetevano ogni 13-14 sec. Qualunque software per l'autoguida abilitata cercava di compensare questi errori ma spesso la correzzione si sommava alle oscillazioni provocando errori ancora peggiori. Andava un pò meglio impostando tempi di correzione uguali o inferiori ad 1 sec.

Qualcuno mi ha consigliato di revisionare la montatura: smontarla, pulirla e reingrassarla. Dopo quella fatica il problema è rimasto.

Poi osservando gli ingranaggi in movimento notai che il l'errore si ripeteva ogni volta che un dente l'ingranaggio del'albero motore entrava tra 2 denti dell'ingranaggio flottante centrale.

Ho cercato in tutti i modi possibili di ridurre questi errori agendo sulle distanze reciproche dei 3 ingranaggi, ma il risultato era pressochè uguale.

La possibile soluzione poteva essere sostituire gli ingranaggi con cinghie; nel frattempo avrei utilizzato il telescopio principale con focale inferiore a 500mm per non incorrere a mosso nelle foto a lunga posa.

Diverse aziende realizzano i kit di modifica con le cinghie, ma spesso la modifica comportava la perdita del rapporto di trasmissione originale rendendo inutilizzabile la pulsantiera della HEQ5. L'unico modo per gestire la montatura sarebbe stato utilizzare l'EQMOD.

Qualche mese fa ho saputo che la l'azienda Rowan Astronomy (UK) realizzava l'HEQ5 Pro Belt Modification Kit (www.rowanastronomy.com/productsa1.htm) che mantiene il rapporto di trasmissione della configurazione originale

Quindi ho comprato il kit. La modifica è stata molto semplice e in poco tempo.

Vi rimando all'album di Facebook www.facebook.com/media/set/?set=a.1199861523390411.107374... dove troverete altri dettagli e accorgimenti.

La prima cosa che si nota anzitutto è la drastica diminuzione del rumore metallico durante il go-to. www.youtube.com/watch?v=r5bu97zoRok , youtu.be/_WRNKh5xMFg

I grafici prima-dopo sono eloquenti. Adesso l'andamento in AR è molto più linerare e le correzioni software sono decisamente migliorate.

Anche il grafico della DEC è migliorato perchè sono praticamente scomparsi gli errori di guida dovuti al backlash.

  

_________

  

In 2010 I bought a used skywatcher HEQ5Pro. It was practically new and used very little.

During the first use I realized that something was not working well during the guider (sometimes frames showed the stars elongated already with focal 560mm court). I then did some tests to try to understand and solve the problem. I used to test the SC C8 reflector reduced to 1650mm focal length and MagZero MZ5m.

Well looking at the AR graph with autoguiding enabled and disabled I realized that the problem was not software but was due to the mount.

In fact, with autoguiding disabled graph presented oscillations in AR with maximum-minimum continuous + 3-4 / -3-4 pixels that occurred every 13-14 sec. Any autoguiding software enabled tried to compensate for these errors but the correction is often added up the oscillations causing even worse errors. Setting correction times same or less than 1 sec, the result was a little better.

Someone advised me to revise the frame: dismantling cleaning, re-greasing etc. After that laborious effort the problem remained.

Then I noticed in watching the moving gears that the error is repeated each time a tooth the crankshaft gear entered between two teeth of the central floating gear.

I tried in every possible way to reduce these errors by adjusting the mutual distances of the three gears, but the result was almost equal.

The possible solution could be to replace the gears with belts; in the meantime I used main telescope with focal less than 500mm in order not to blur in long-exposure.

Several companies realize the modification kit with belts, but often the modification entailed the loss the gearing ratio of the original setup making unusable the handset in the HEQ5. The only way to handle the mount would be to use the EQMOD.

A few months ago I learned that the company Rowan Astronomy (UK) realized the HEQ5 Pro Belt Modification Kit (www.rowanastronomy.com/productsa1.htm) that maintains the gearing ratio of the original setup .

So I bought the kit. The change was very simple, and in a short time.

I refer you to the album Facebook www.facebook.com/media/set/?set=a.1199861523390411.107374... where you will find more details and tricks.

The first thing you notice is the drastic reduction of the metal noise during the go-to.

www.youtube.com/watch?v=r5bu97zoRok,

youtu.be/_WRNKh5xMFg

The graphs before-after are eloquent. Now the shape of the curve AR is much more linear and software fixes have definitely improved.

The DEC's graph also improved, because virtually disappeared driving errors caused by backlash.

 

SkyWatcher 70mm SK707AZ2 + Filter Thousand Oaks + super 25mm + barlow 2X.

 

Edited with MS Picture Manager and Photofiltre.

 

It's possible to see the 3708, 3709, 3711, 3712, 3713 and 3716.

Skywatcher 190MN, NEQ6 mount, Altair Tri-band filter, ASI294MC Pro at -20C. 31 x 5 minute exposures (2 hours 35 minutes) at Gain 120, Offset 30, 50 dark frames, 50 flat fields and 50 dark flat frames.

 

Processed in APP, Pixinsight and Photoshop.

 

Imaged over two nights, 1st and 5th of December 2021, due to varying weather.

Skywatcher 72ed and Canon 600d

Quick test on the Great Orion Nebula.

Imaged during night of full moon.

25min exposure at iso200 with Nikon d610 and TS72

North America Nebula in constellation Cygnus with brightest star Deneb.

Nikon d610

145mm @ f4

iso1000

18 frames - total exposure time 64min

SkyWatcher 70mm SK707AZ2 + Filter Thousand Oaks + barlow 2X + super 25mm.

 

Edited with MS Picture Manager and Photofiltre.

Sky-Watcher Quattro 150P f/3.5

QHYCCD Minicam8

 

LRGBHa

15 x 120sec. subs each filter (2.5hrs. total)

 

Processed with Astro Pixel Processor, GraXpert, NoiseXTerminator and Affinity Photo

The Pearl Cluster in constellation Centaurus ( NGC 3766 ) by Mike O'Day ( 500px.com/MikeODay )..The Pearl Cluster, visible from the Southern Hemisphere, shimmering like a pearl to the naked eye, is an open cluster of mostly young blue stars approximately 5500 light years from Earth. ..Links:..https://500px.com/MikeODay.http://photo.net/photos/MikeODay..Details:..NGC 3766 - RA 11h 37m, Dec -61deg 41'. .Skywatcher Quattro 10" f4 Newtonian. .Skywatcher AZ Eq6 GT Mount..Guiding: Orion Shortube 80 guidescope, Starshoot Autoguider, PHD2..Baader MPCC Mark 3 Coma Corrector..Hutech IDAS D1 filter..Nikon D5300 (unmodified)..Field of view (deg) ~ 1.35 x 0.90..Combination of 55 images 30 sec @ ISO400...Pixinsight

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

Skywatcher 190MN, NEQ6 mount, Altair Tri-band filter, ASI294MC Pro at -20C. 27 x 5 minute exposures (2 hours 15 minutes) at Gain 120, Offset 30, 50 dark frames, 50 flat fields and 50 dark flat frames.

 

Processed in APP, Pixinsight (based on www.youtube.com/watch?v=QV6ObLVRvNk ), Topaz denoise and Photoshop.

 

Many passing clouds.

18:25 - 21:50 UTC, 4th November 2021.

SkyWatcher 70mm SK707AZ2 + Filter Thousand Oaks + barlow 2X + super 25mm.

 

Edited with MS Picture Manager and Photofiltre.

Skywatcher 72/420 ED Apo + Canon 600D

SCHEDA TECNICA

Tubo ottico riflettore: Newton Skywatcher 150/750 PDS Explorer

Telescopio guida: 60/280

Montatura: EQ - Celestron AVX Advanced VX

Riprese: Camera CCD ZWO Asi 1600 mono PRO (raffreddata a -10°)

Filtro: H-alfa

Inseguimento: Camera CCD ZWO Asi 120 mono

Software riprese: SharpCap 3.2

Software inseguimento: PHD Guiding 2

Integrazione: 75 pose (.fits) × 60 secondi + dark frame

Elaborazione: Deep Sky Stacker + Photoshop

Lunar close-up from last night.

Sky-watcher Skymax 102, ZWO ASI 120MC-S, Star Adventurer Pro.

Used Software: Firecapture, PIPP, Autostakkert, Registax

Exifs:

■ Mount: skywatcher neq-6 goto with Rowan modification belt

■ Telescope: skywatcher 200/1000 F/5

■ Camera: ZWO asi 120 mc-s

■ Other optic(s): celestron omni barlow 2X

■ Software :autostakkert / registax6 / photoshopCC

■ Date : 31-03-2020

Taken with a Skywatcher ED80 Refractor fitted with a Baader Astrosolar Filter and a Canon 600D at prime focus. Tried RAW images today to see if there was a difference between jpgs. Processing a lot longer with no visible benefit the result. Slower shooting too due to file sizes. Best 20 of 30 images stacked using Autostakkert 2

Skywatcher 250pds, IMG132e x2 Barlow

1800 frames in Registax. 80% used

Wavelets in Registax + RGB Tweaks

Taken with a Skywatcher ED80 Refractor fitted with a Baader Astrosolar Filter and a Canon 600D at prime focus.

Skywatcher 150PDS

 

Celestron CG5

 

Nikon D90

   

80 x 30 s @ ISO1600

 

Total exp.: 40 min

   

DeepSkyStacker

 

GIMP 2.10

Skywatcher 120ED

F=1800mm

img132e

Autostakkert2

PixInsight

 

Sri Damansara, Malaysia

Skywatcher 150PDS

Skywatcher EQ3-2

TS optics 3x Barlow lens

Nikon D90

 

ISO: 2500

Exposure: 1/125 s

120 frames for each panel

3 panels

 

AS!3 top 100 frames stacked

Image Composite Editor

GIMP 2.10

SkyWatcher 70mm SK707AZ2 + Filter Thousand Oaks + barlow 2X + super 25mm.

 

Edited with MS Picture Manager and Photofiltre.

Taken with a Skywatcher ED80 Refractor fitted with a Baader Astrosolar Filter and a Canon 600D at prime focus. Best 20 of 40 jpgs stacked using Autostakkert 2.

Skywatcher 72ED

Canon 7D MKII (unmodified)

Skywatcher Star Adventure

SVBony CLS clip in filter

130 / 30 second exposures

1600 ISO

Pretty pleased with this cheap filter.

SkyWatcher MC 102/1300

QHY5L-II color camera

Gain: 22

Exp: 1ms

36 FPS

 

www.instagram.com/balazs_benei/

First photo taken through my new 10 inch Skywatcher dobsonian telescope.

OTA: Newtonian Celestron 130 mm/f5 modified

 

Mount: Skywatcher Heq 5

 

Imaging Camera: Canon 700D astro modified

 

Guide telescope: Gso 50mm

Guide câmera : QHY5L II Mono

 

Baader Mk III Coma Corrector

 

Polemaster Eletronic Polar Scope

     

Total Exposure: 3:30 hours (subs 300 sec)

 

Deep Sky Stacker: Calibration and stacking

 

Adobe Photoshop Cs2 : Data Processing

 

PHD Guiding 2: Guide

   

Darks, Dark Flats, Flats and Bias apply

 

Serra Negra ( Bortle 4) /São Paulo/Brasil . september/2019

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