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I went back out for a third time this week to re-attempt an equatorial alignment, bearing in mind some lessons learned and settling for a shorter camera lens focal length rather than the full 1350 mm of the telescope, but still struggled with tracking errors. Not really sure what I'm doing wrong, maybe the equipment I have just isn't up to the task. I shot this with 90-second exposures, at 180 mm, and recorded 30 frames, but only 10 proved usable. The rest had varying amounts of trailing, and even most of the 10 had a small amount. Longer exposures were faring even worse. Bit annoyed to only get 15 mintues of data from 45 mintues of recording, but with some enthusiastic processing in DeepSkyStacker and Lightroom, I managed to make something of it anyway! Thanks to the extra-dark West Texas skies and the tracking mount I was finally able to get a half-decent image of the Heart and Soul Nebula(e). This was 10 frames at 90 seconds, f/3.5, 180 mm, ISO 2000.
15x 120sec exposures
Stacked in DeepSkyStacker
Edited in Pixinsight and Lightroom
Shot with Nikon D600 and ioptron skytracker
An unguided image of the Double Cluster in Perseus taken last night through a Canon 400mm f/5.6 L lens using a Canon 7D MKII dslr camera mounted on a Celestron AVX mount. Ten 30 second images and four dark frames were stacked using DeepSkyStacker and then enhanced with Adobe Lightroom.
I added another half hour of imagery to what I already had, so this image consists of 65 minutes of data. After shooting it this latest time, I realized that I hadn't been balancing my tracker correctly when shooting south, so when I image it again this fall, I hope to be more efficient with getting non-star-trailed 60-second subs.
Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 65 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken Oct. 6 2019 and Feb. 27, 2020 under Bortle 3/4 skies.
Avec à sa gauche la nébuleuse du Coureur (NGC 1977).
Setup :
Télescope : Newton Sky-Watcher 200/1000 f 5.0
Monture : HEQ5 Pro GOTO
Correcteur de coma : SW0264
APN : Nikon D600 (au foyer) - ISO 800
Guidage : Kit Star Guider 50mm - Caméra I-nova PLB-Mx2 - Logiciel PHD Guiding 2
Navigation : Stellarium - pointage EQMOD,
Acquisition : DigiCamControl
Empilement : DeepSkyStacker
Développement : Lightroom 5
Temps de pose : 19 x 300s = 1h35mn
15 darks - 9 flats - 15 offset
Comet C/202 F3 (NEOWISE) over the Lentevreugd nature reserve in Wassenaar, in the Netherlands, at 01:43CEST on 21 July 2020.
Nikon D7000 + 18-200mm at 18mm, f/3.5, 6 x 10 sec, ISO 1600.
The six images were aligned on the stars & stacked using DeepSkyStacker, with the foreground combined separately without offsets in Photoshop & then composited back in as a layer to avoid blurring the scenery. Final adjustments in LightRoom.
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 remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. It is sometimes incorrectly called the "North American Nebula".
Location: Filiates Thesprotias(Greece)
Exposure time 3:30 Hours
William Optics Star 71mm f/4.9 Astrograph
Neq6 Equatorial Mount with autoguider
Canon 60d Modified
Pre Processing Deepskystacker
Post Processing Photoshop CS6
time now for me to mod my old EOS 50D, you can guess the horse head nebula in the upper left (it took me a while post processing to get even that), but that's not nearly as much i was hoping for given the exposure time.
i'm looking forward to another M42+M43 crop on that, maybe i can push it a little further than the last time :)
Canon 5DMIII unmodified
70-200mm f/4 L @ f/5
Tracking with Vixen Polarie
Stacked with DeepSkyStacker, post editing in Photoshop and Lightroom
60x 40sec @ ISO2500
20x 40sec @ ISO800
total exposure time 53 minutes
shot under a bortle 5 sky
Imaged from a local beach, which has a less obstructed and slightly less light-polluted view compared to my back garden.
14 x 2-minute exposures at f/4 and ISO 3200. Astro-modified Canon EOS 600D and Leica Summicron 50mm f/2 lens on a Vixen Polarie star tracker.
Frames stacked in DeepSkyStacker software; curves and colour balance adjusted in Canon Photo Professional; noise reduced using Cyberlink PhotoDirector.
Total 138min (HA combined to R only)
H-Alpha - 1x600sec, 1x300sec & 4x450sec (45min)
RG - 10x180sec
B - 11x180s
Stacked in DeepSkyStacker, processed in PS2
Telescope: Celestron C8 (@f/6.3)
Camera: Atik 314L+ Mono
Filters: Baader H-Alpha 7nm, RGB
Mount: AZ EQ6-GT goto, PhD guided using Orion OAG & SSAG.
Shotdate: 28-12-2014
Camera: Nikon D4s
Optics: NIKKOR 105mm f2.8 @ f5.6
Filter: IDAS LPS-P1
ISO-speed: 1600
Exposure: 300 seconds
Mount: SkyWatcher NEQ6 Pro
Guiding: F500mm f90mm with LVI SmartGuider2
Lights: 54
Darks: 20
Bias: 12
Flats: 20
Stacked in DeepSkyStacker
Post-processing in PixInsight
Image has been stacked using DeepSkyStacker (DSS), but no other processing done.
Taken with an Imaging Source DMK 21AU04.AS mono ccd camera. Skywatcher Quattro 8" steel tube on a HEQ5 pro mount.
Eleven, forty second exposures captured with Sharpcap and stacked with calibration frames.
Canon 135mm f/2 prime lens closed down to f/2.8,SX Trius Pro 694 mono ccd with Baader 7nm Ha filter (1.25") riding on CEM60.
Two pane mosaic consists of 12-18 ten minute subs stacked in Deepskystacker,mosaic stitched using Microsoft ICE and processed in PS CS2.
Taken 22/02/27
Messier 12 (M12 or NGC 6218 in the New General Catalog) is a globular cluster in the constellation Ophiuchus. It is also referred to as the “Gumball Globular”. It was discovered in 1764 by the French astronomer Charles Messier who described it as a “nebula without stars”. M12 is approximately 15,700 light-years distant. You will definitely need binoculars or a small telescope to see this cluster. This cluster contains about 200,000 stars, the brightest of them are about 12th magnitude.
Observation data (J2000 epoch)
Class: IX
Constellation: Ophiuchus
Right ascension: 16h 47m 14.18s
Declination: –01° 56′ 54.7″
Distance: 16.44 ± 0.16 kly
Apparent magnitude (V): 6.7
Apparent dimensions (V): 16′.0
Tech Specs: Meade 12” LX-90 SCT Telescope, Antares Focal Reducer, ZWO ASI2600MC camera running at 0F, 40 x 60 seconds, Celestron CGX-L pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: July 23, 2025. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Used my 150ED apo f/7 and filterless 314L+ to capture 36 subs at 20sec each of Globular Cluster M13 in Hercules. Stacked in Deepskystacker and processed in Photoshop.
Image taken 17/04/17
Backyard Nebula
30 x 240 secs.
Canon EOS-R
William Optics GT81
Optolong L-Pro
iOptron CEM40
DeepSkyStacker
DxO PhotoLab 5
Bortle 7+
382mm
ISO 800
f/4.7
Orion's belt,flame nebula,horsehead nebula
Total exposure: 13 min 30 sec
Light frames : 27 x 30",No Dark,flat frames
ISO: 800
Camera: Nikon D7500
Lens: Samyang 135mm @f2.8
Equatorial Mount: Ioptron Skyguider pro
Bortle class: 4
Stacked and processed using Deepsky stacker, Siril,Images Plus and PS
Image processing : Background extraction,Arcsinh/hyperbolic sine stretch,
and Green noise removal,low pass filtering
Here is an image I took on the evening of December 27, 2016 of this large, but faint galaxy called the Sculptor Galaxy (also known as NGC 253, Silver Coin or Silver Dollar Galaxy). This was my first time imaging this galaxy and I couldn’t believe how large it was, nearly filling the camera view (I’ve been imaging planetary nebula, so left the focal reducer off). With the high winds and clouds rolling in, this is what I ended up with.
Tech Specs: This image is composed of 68 x 15 second images at ISO 5,000 with 5 x 15 second darks and 5 x 1/4000 second bias frames using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Imaging was done on December 27, 2016 from Weatherly, Pennsylvania.
Online references:
Wikipedia (en.wikipedia.org/wiki/Sculptor_Galaxy)
This is the Cone Nebula and Christmas Tree Cluster (on its side guys) in Monoceros, and is a pig to process.
Clear last night, so managed another session on this, plus (yes, plus!) a session on the Veil, which I'm trying to forget. This is just over 5 hours of 5 minute subs. I'll leave it alone now until next Christmas, which will be upon us in the blink of an eye!
Desde Lagunillas, San José de Maipo, Chile.
Procesada con DeepSkyStacker (80 tomas)
f/4.5
20s (c/u)
ISO 3200
18mm
Versión sin editar: www.flickr.com/photos/fatseba/8629371645/
Object:M31 Andromeda Galaxy
Location:20/09/2020, Ty Newydd Farm Campsite, Aberdaron, Wales, Bortle 2, 8% Moon.
Aquisition:75x 120s subs @ iso800 Total Integration 2 1/2 Hours.
Equipment:Imaging; Altair Astro 60EDF, Skywatcher Star Adventurer, Canon 1200D astro modified DLSR. Guide RA only; Altair MG32 Mini, Zwo ASI120MM.
Software:APT, PHD2, DeepSkyStacker, Photoshop, Starnet++.
Barnard 33.
Located in the constellation of Orion
M: iOptron EQ45-Pro
T: William Optics GTF81
C: ZWO ASI1600MC-Cooled
F: L-eNhance filter (Dual Ha,Hb & Oiii Narrowbands)
G: PHD2
GC: ZWO ASI120mini
RAW16; FITs
Temp: -20 DegC
Gain 200; Exp 200s
Frames: 41 Lights; 4 Darks; 20 flats
95% Crop
Capture: SharpCap
Processed: DSS; PS
Sky: New moon, calm, no cloud, cold, fair seeing.
1,500 light years distant.
M45 pleiades open star cluster
Data for this image was shot on the 17th of September 2018, from Rochdale, UK.
Equipment:
Skywatcher 8" Quattro ST on a HEQ5 pro mount, not guided.
Camera was a stock Canon 1100D attached at prime focus and for the exposures an intervalometer was used.
Data & Processing:
60 exposures of 75 seconds ISO 400.
Calibration frames were 25 darks, flats & bias.
Stacked using DeepSkyStacker and all processing was done using StarTools.
[Español]
A pesar de contar con luna llena, niebla y humedad, se obtuvo una buena imagen sin mucha exposición. Volveremos con mejor clima!
10 lights de 15" (2' 30" de exposición) + darks + bias/offset.
Nikon D3200 - Nikon 18-55 mm, a 18mm y f/3,5. ISO 1600.
Apilado con DSS + Photoshop CC.
[English]
Notwithstanding the full moon, the mist, and the wet weather, we've captured a nice image, without exposing so much.
10 15" lights + darks + bias/offset. 2,5 minutes of total exposure.
Nikon D3200 - Nikon 18-55 mm @ 18mm. f/3,5. ISO 1600.
Stacked with DSS + Photoshop CC.
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Working on the assumption that I'm unlikely to add to this in 2012, these are my efforts for the last 12 months :)
2012 was not a good year weather wise, even by UK standards. I struggled to find 12 images to go in this, but that could be down to the fact that I tend to spend more time on each image these days. Anyway, thanks for all your kind comments and faves over the last year, and I wish you all a peaceful Christmas, and a multitude of clear skies in 2013 :)
Andromeda galaxy shot from my driveway on a dark autumn evening. This is the only benefit I see from changing the clocks back... earlier night sky viewing. 5 images (300mm - 30 seconds each) on an iOptron SkyTracker stacked in DeepSkyStacker to reduce noise.
Another collaboration with my northern buddy, Dave Williams, who once again kindly provided the Ha, which was used as luminance. I also layered in the M42 I did earlier this year to improve the colour. This again demonstrates just how much the ED80 leaves the 200p in its wake :)
RGB :
SW ED80/EQ5
Nikon D70 modded, Baader Neodymium filter
31 x 240secs iso 800, 30 x 8 secs iso 800 for the core (2 hours 8 minutes)
Guiding (RA only): Quickcam Pro4000/9x50 finderscope, PHD
Stacked in DSS and processed in CS5
Ha (Dave Williams):
10 x 600 secs (I hour 40 minutes)
250mm Hasselblad lens at f4
Moravian G2 8300
5nm filter
Manually guided for 7 x 7-minute exposures at ISO 1600, f/6.25. Modified EOS 600D & Sky-Watcher ED80 refractor, piggybacked on a Celestron C8 telescope for guiding.
Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro; noise reduction via CyberLink PhotoDirector.
There's a few galaxies in this. Apart from all the chunky ones, there are loads of little fuzzy ones as well. Cool. Not quite Hubble Ultra Deep Field, but not bad from my back garden :)
This is part of the Virgo Supercluster of galaxies, which comprises as many as 2000 galaxies. Our Local Group, which includes us (the Milky Way) and Andromeda, is in the suburbs of the Virgo Supercluster.
This is just over 7 hours of ten minute subs for luminance and 2.5 hours of 5 minute subs for the RGB, what there is of it!
ED80 with 0.85 focal reducer
HEQ5 Pro, belt driven
Cooled mono Canon 450D, CLS CCD filter for Luminance
Modded Canon 500D for RGB
APT, PHD, CDC, EQMOD
Stacked in DSS, processed in CS5
Nikon d610(stock), iso800
TS-Optics 72mmf6
total of 30 minutes with 240sec subs
guiding:
ZWO asi120mcs
TS 50mm/f3.6 guidescope
Tracking: Skywatcher Star Adventurer
software:
guiding: phd2
Stacking: Deepskystacker 4.2.2
Processing: Adobe Photoshop, GradientXterminator, Nik software, HLVG, Adobe Raw
My attempt at capturing comet C/2023 A3 (Tsuchinshan-ATLAS), with the anti-tail also visible. (y)
10 x 25s exposures, stacked in DeepSkyStacker (Comet Stacking) and edited in Photoshop 2025
Canon EOS 200D + Tamron 100-400mm f/4.5-6.3 Di VC USD + Sky-watcher Star Adventurer Pro
⚙️ 25s; f/8; ISO-800; 208mm
T: WO GTF81
C: ZWO ASI1600MC-Cool
M: iOptron iEQ45-Pro
G: No guiding
Gain: 139
Lights: 100 x 2s
Darks: No
Flats: No
Bias: No
Capture: Sharpcap
Processing: DSS; PS.
Compilation de 12 images (2 darks) de la galaxie d'Andromède, M31. Programmes: Deepskystacker et Photoshop CS4. D4+Nikkor 200-400 F/4+ TC-14E II+ Déclencheur souple MC-30+ Monture motorisée. Expositions entre 30 et 130s.Total de 1351 secondes.
Stack of 12 images (and 2 darks) of the galaxy Andromeda (M31). Softwares: Deepskystacker and Photoshop CS4
D4+Nikkor 200-400 F/4+ TC-14E II+ Remote trigger MC-30+ Motor mount. Exposures between 30 and 130s.Total of 1351 seconds.
Comet Leonard is the astronomical event of the year, discovered in January 2021 is located at 35 million kilometers from our planet. As an example, the moon is at 384.400 km.
In its elliptical path with our Sun, it is estimated that it visits us every 40.000 years and to observe it you have to get up early, at 4am. It is not visible to the naked eye, but it can be seen with binoculars at its closest to the earth, which is estimated for December 12.
The photos are taken with an equatorial tracking mount, similar to those found in observatories, to increase the exposure time and prevent stars from looking like traces. Different shots of 30s, 50s and 60s are shot with different ISOs which are then stacked to bring out the tail and details.
El cometa Leonard es el evento astronómico del año, descubierto en enero de 2021 se encuentra a 35 millones de kilómetros de nuestro planeta. Como ejemplo, la luna se encuentra a 384.400 km.
En su trayectoria elíptica con nuestro Sol, se calcula que nos visita cada 40.000 años y para observarlo hay que madrugar, levantase a las 4am. No es visible a simple vista, pero si se apreciara con unos prismáticos en su máximo acercamiento a la tierra, que se estima para el 12 de diciembre.
Las fotos están obtenidas con una montura de seguimiento ecuatorial, similar a las que tienen los observatorios, para aumentar el tiempo de exposición y evitar que las estrellas se vean como trazos. Se lanzan diferentes tomas de 30s, 50s y 60s con diferentes ISO que luego se apilan para resaltar la estela y los detalles.
Date: 07/12/2021
Location: Culla - Castellón (40°18'58.9"N,0°09'39.4"W,828m)
Tracker: Sky-Watcher AZ-GTi
Single shoot with camera Sony ILC3-A7M3 APS-C Mode
Lens Sony FE 100-400mm F4.5-5.6 GM OSS
ISO 10000, 20seg, f5,6
©2021 All rights reserved. MSB.photography
Thank all for your visit and awards.
Ancora rumorosetta... sgrunt! purtroppo poca integrazione, la luna stava sorgendo, ma è pur sempre un inizio
Still a little noisy, sgrunt! unfortunately not a lot of integration time, the moon was rising, but it's a beginning
:)
The Horsehead Nebula is approximately 1500 light years from Earth. Also known as Barnard 33 in emission nebula IC 434, also called as 'the Flame', is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. (from from wiki).
dettagli dello stack:
Telescopi di acquisizione: APO Triplet 130/910 mm, TecnoSky 102ED
Camere di acquisizione: Canon EOS 50D, Canon / CentralDS EOS Astro 50D
Montature: Sky-Watcher EQ6 Pro, Sky-Watcher HEQ5
Telescopi guida: 80/600
Camere guida: lacerta mgen2, LVI Smartguider 2
Riduttori di focale: Flattener 2"
Software: DeepSkyStacker, Adobe Lightroom 3, Silicon Fields StarTools 1.3, Noel Carboni's Astro Tools for PhotoShop
Filtri: Orion SkyGlow 2" Imaging Filter, Hutech IDAS LPS-V4
Date: 25 febbraio 2012, 25 novembre 2013
Pose:
Hutech IDAS LPS-V4: 6x550" ISO800 bin 1x1
Orion SkyGlow 2" Imaging Filter: 6x400" ISO1600 -18C bin 1x1
Orion SkyGlow 2" Imaging Filter: 2x150" ISO2500 -18C bin 1x1
Integrazione: 1.7 ore
Dark: ~21
Flat: ~22
Temperatura: -3.00
Located 6,400 light years away in the constellation of Orion, the Monkey Head is an emission nebula and home to the open star cluster NGC 2175.
The nebula acts as a womb for new stars to be born. Those new stars then radiate such immense energy that blasts in to the surrounding gas and dust that makes up the nebula. This has the effect of not only clearing away the surrounding nebula from the newly born star but, causes the gas and dust in other areas to be pushed together. When enough of this material is pushed together it allows gravity to take hold and pull more and more of it in. When enough of it is pulled together there's a good chance another star will be born.
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 -20c gain 100, Optolong L'enhance 2" filter, ZWO asiair plus.
180s exposures.
Best 70% of 30 light frames.
Darks, Flats & Bias.
Stacked with DeepSkyStacker, and processed in Affinity Photo.
First Attempt
10 x 30 secs (5 minutes) , ISO 1600, F/4, 800 mm
+
10 darks
Canon T3i + 200/800 mm reflector telescope
Taken with a TMB92L, Hutech-modified Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 42 240-second light frames and 45 240-second dark frames, all at ISO 800, as well as 60 flat and 100 bias frames. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop.
NGC 7293
Imaging cameras: zwo optical ASI6200mm pro
Mounts: SkyWatcher EQ8
Focal reducers: Teleskop-Service 0.79X
Software: DeepSkyStacker x64 by Luc Coiffier, Tony Cook, David C. Partridge DeepSkyStacker x64 · Photoshop
Filters: Baader 2" 8,5nm OIII · Baader 2" 7nm Ha
Dates:Sept. 1, 2021
Frames: 30x180" (1h 30')
Integration: 1h 30'
View M31 - Andromeda Galaxy from Sultan Basin on Black
View M31 - Andromeda Galaxy from Sultan Basin Map/EXIF
Nikon D7100 + 400mm f/2.8 @ 400 mm - 300.0 sec at f/4.0, ISO 800
Manual mode @ 0 EV E.C - Pattern metering - no flash
Subject Distance: unknown
Mount: Losmandy G-11
Autoguider: None
Lens: Nikon 400mm 2.8 @ 400mm
Camera: NIkon D7100
Limiting Magnitude: 6.2
Subs: 20 @ 5mins, ISO 800, F/4
Darks: 20 @ 5mins, ISO 800
Calibration: DeepSkyStacker
Processing: PixInsight, Lightroom 5
47°55'20" N 121°45'14" W, 797.2 ft
Sultan Basin Road
Sultan, Washington, United States
Taken on 09.08.2013, uploaded on 09.09.2013.
©2013 Adam James Steenwyk. Please contact me at ajamess [at] gmail [dot] com if you would like to use this photo. Blog: www.f128.info
Follow me on Facebook: NJE Photography
A first attempt at photographing the Orion nebula. Using a focal length of 135mm, I was able to also capture the Horsehead and Flame nebulae in the frame. You can just make them out towards the bottom right of the image. Still lots to learn!
Canon 5D MkII; Canon 135mm f/2L; iOptron Skytracker
- 5 x 30" @ f/2.8 + 5 x 30" dark frames
- 10 x 30" @ f/4 + 10 x 30" dark frames
- Stacked in DeepSkyStacker and edited in Photoshop and Lightroom
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.
Hi,
Here is one of my first astrophotograph of the deepsky I took at prime focus of my newtonian telescope with my canon T3i camera (unmodded)
It is a 10-image-stacked picture of 30 seconds each.
Both staking and processing were made by a friend using PixInsight sofware. Thanks to him :)
It is actually an update of my previous version inwhich I had used Deep Sky Stacker freeware and lightroom. Click here.
So, how to find the difference between PixInsight and DSS/Lightroom ?
We clearly see the powerful process of PixInsight !
Thanks for reading ;)
Technical Cards :
10 x 30 secs
ISO 1600
800 mm
f/4
Canon T3i
+ 10 darks
Yet another collaboration between Dave Williams (Ha) and myself (RGB). After a month without a single usable clear sky, we finally got one, so I quickly read all the user manuals for my kit again and got out there. Freezing cold, but I suffered in silence (as there was no-one else there) and soldiered on. Managed 2 hours of 3 minute subs and combined Dave's Ha as luminance, as before.
I may add more RGB as and when the opportunity arises (hopefully this side of Christmas) but for the time being I'm quite pleased with this effort.
RGB (Me) :
SW ED80/EQ5
Nikon D70 modded, Baader Neodymium filter
39 x 180secs iso 800 (1 hour 57 minutes)
Guiding (RA only): Quickcam Pro4000/9x50 finderscope, PHD
Ha (Dave Williams):
10 x 600 secs (I hour 40 minutes)
Nikon 180mm lens @ f2.8 (heavily cropped)
Moravian G2 8300
Astrodon 5nm Ha filter
Stacked in DSS and processed in CS5
This comet is in a hurry. The star trails show how much it moved during the time I was shooting.
Total exposure time: 18 mins
Telescope: Tele Vue-60 APO refractor
Mount: Vixen Super Polaris
More details (including a finder chart) at:
www.skyandtelescope.com/astronomy-news/comet-46p-wirtanen...