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I gave my 500mm mirror lens a go with the Sony A7 and a nano.tracker sidereal rate tracking platform tonight.
I went for 15s exposures (at the fixed f/8 aperture) and ISO 6400. In total 37 frames were used for a total exposure time of 9m 15s, along with 19 dark frames.
Images were stacked with DeepSkyStacker and with final processing in Photoshop to remove vignetting.
The Orion nebula is often referred to as a stellar nursery, a place where new stars are being formed out of collapsing gas clouds.
OTA: Celestron C8N, 8" f/5 newtonian reflector
Camera: ZWO ASI1600MM
Exposure: H-alpha 14x10min, O3 24x10min
Mount: CEM70G
Captured with SGP
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (light pollution zone: red)
Total exposure time: 2 hours (40 subframes, 10 darks, 20 flats)
Telescope: Tele Vue-60 APO refractor
Mount: Vixen Super Polaris
Also known as Caldwell 49 and NGC 2237.
The Rosette is an emission nebula in the constellation Monoceros some 5,000 light years away.
It's thought to be responsible for the birth of some 2,500 stars. A group of which can be seen near the centre, this is the open star cluster NGC 2244 estimated to be about 4,000,000 years old.
Boring Techie bit:
Telescope: Askar FRA400 with .7 reducer
Mount: EQ6r pro
Camera: ZWO 533mc pro
Filter: Optolong L'eNhance.
Guided and controlled by the ZWO asiair+
Best 90% of 40 light frames 180 seconds each.
Stacked with darks, flats, dark flats & bias with DSS.
Processed using Graxpert, PixInsight & Affinity Photo.
questa volta quasi ci siamo :D c'e' ancora un po di rumore ma ne ho approfittato per fare un po di esperienza con il layer masking. In questa versione ho trashato gli scatti con l'idas e riciclato altri scatti fatti nel 2011.
Telescopi o obiettivi di acquisizione: 102ED f/7
Camere di acquisizione: Canon / CentralDS EOS Astro 50D, Canon EOS 50D
Montature: Sky-Watcher EQ6 Pro, Sky-Watcher HEQ5
Telescopi o obiettivi di guida: 80/600
Camere di guida: LVI Smartguider 2, LVI Smartguider 1
Riduttori di focale: Flattener 2", 0.8X flattener/reducer
Software: Adobe Lightroom 3, Deepskystacker, photoshop, Noel Carboni's Astro Tools for PhotoShop
Filtri: Orion SkyGlow 2" Imaging Filter
Risoluzione: 853x1280
Date: 23 settembre 2011, 01 ottobre 2011, 05 dicembre 2012
Luoghi: Pian Munè, Fubine (AL), Saint Barthelemy (AO)
Pose:
Orion SkyGlow 2" Imaging Filter: 14x400" ISO1600 -17C bin 1x1
Orion SkyGlow 2" Imaging Filter: 13x150" ISO800 bin 1x1
Orion SkyGlow 2" Imaging Filter: 25x180" ISO800 bin 1x1
Integrazione: 3.3 ore
Dark: ~20
Flat: ~20
Giorno lunare medio: 16.39 giorni
Fase lunare media: 36.57%
Scala del Cielo Scuro Bortle: 2.00
Temperatura: -2.00
Centro AR: 05:35:23.384
Centro DEC: -05:18:10.302
Campionamento: 5.60 arcsec/pixel
Orientazione: -175.49 gradi
Larghezza del campo: 1.33 gradi
Altezza del campo: 1.99 gradi
Target:NGC 2264 Christmas Tree Cluster and Cone Nebula in the constellation Monoceros at about 2600 light years from Earth.
Location:24/12/2020 St.Helens, UK, Bortle 7, 78% Moon.
Aquisition:20x180s Ha, 20x180s (OIII), 20x180s(SII), Total integration 180 min.
Equipment:Imaging: Skywatcher Esprit 100ED, HEQ5, ZWO ASI1600MM Pro and EFW Mini with Baader_Planetarium narrowband filters.
Guiding: Skywatcher 9x50 Finder with ZWO ASI120MM.
Software:Capture: NINA, PHD2.
Procesing: DeepSkyStacker, Affinity Photo, Siril, StarXTerminator, Topaz DeNoise AI. Reprocessed Dec 2021.
M81 & M82 from Turin, Italy 🇮🇹
What a night for testing my new Star Adventurer! 😍
It took me a long time of waiting but finally I got my dream gear, a star tracker!
So, after years of no guided astrophotography... Let the star adventures begin!
And what a good way to start with these two sisters!
So happy for this result, can't wait for next clear sky night!
If you want to check my Instagram, instagram.com/astrotuppo?igshid=YmMyMTA2M2Y=
This shot was taken by me with:
- Tamron 200mm f2.8
- Canon 200D
- Star Adventurer
- Stacking 120s ISO 400 f2.8 for ~ 2h
- Deepskystacker + Photoshop + DaVinciResolve
Shotdate: October 6th 2013
Camera: Nikon D3x
Optics: NIKKOR 80-400mm f4.5-5.6 @ 400mm f7.1
ISO-speed: 1600
Exposure per sub: 300 seconds
Mount: SkyWatcher NEQ6 Pro
guiding: LVI Smartguider2 on 500mm 90mm APO
Stacked in DeepSkyStacker:
Stacking mode: Standard
Alignment method: Bicubic
Stacking 41 frames - total exposure: 3 hr 25 mn 6 s
Per Channel Background Calibration: Yes
Method: Auto Adaptive Weighted Average (Iterations = 5)
Offset: 108 frames exposure: 1/8000 s
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Dark: 28 frames exposure: 5 mn 0 s
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Flat: 46 frames exposure: 1/2 s
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Post-processing in PixInsight 1.7
The North American Nebula next to the bright star Deneb in Cygnus taken with a hydrogen alpha astro modified Canon 5D MKII dslr camera using a Rokinon 135mm f/2 telephoto lens. 30 one minute images were combined to create the picture using DeepSkyStacker, Adobe Lightroom, and Gimp.
Hydrogen-Alpha: 9,000 seconds
Oxygen-III: 4,800 seconds
Sulfur-II: 3,300 seconds
Total Integration: 17,100 seconds (4:45 hours)
This has to be my cleanest Andromeda to date.Captured in Nova Scotia in August..after 2 1/2 months of working on it..I call it finalized.Every processing step was zoomed in at 100% to make sure the stars weren't taking a hit..I didn't want to over-saturate with color..Complete @ 3 1/2 hours integration time
ISO 800
13 x 900sec
1 x 600sec
1 x 300sec
16 x flats
16 darks
-Celestron AVX Mount
-150mm SkyWatcher Reflector
-Orion autoguider package
-Nikon D5100 (unmodified)
-SkyWatcher Coma Corrector
-AC adapter
_________
-Capture
PHD 2.4.1
BackyardNIKON
-Processing
DeepSkyStacker
PhotoshopElements12
Lens: Sigma Art 135mm, @f/2.0
Camera: Canon 6D modified
Exposure: ISO 200, 5min x 35
Filters: Optolong UHC EOS-FF
Mount: CEM70G
Captured with SGP
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (light pollution zone: red)
Object:NGC 6960, Western Veil Nebula, Witches Broom and Pickerings Triangle, Supernova remnant in Cygnus
Location:19/09/20 St Helens, UK, Bortle 8, New Moon
Aquisition:29x180s Ha, 29x180s [OIII], Gain 139, Offset 21, Temp -15c, Total integration 174 min mapped as HOO.
Equipment:Image; Skywatcher Esprit 100ED Pro, HEQ5 Pro, ZWO ASI1600MM Pro, ZWO EFW Mini, Baader filters, Guide; Skywatcher 9x50 Finder with ZWO ASI120MM.
Software:NINA, PHD2, DeepskyStacker, Photoshop, Starnet++.
Memories:Calm clear conditions with just a light breeze following a rather windy day. In common with most supernova remnants, I felt this target would respond best to processing as HOO and was very pleased with final results.
:) questa luna nuova ci siam tolti un po di soddisfazioni, ma nonostante cio' siam riusciti a prendere 3 fantozziate serate a vuoto su 5 :\ sob!
Telescopi o obiettivi di acquisizione: Orion 8" Ritchey-Chretien
Camere di acquisizione: Canon / CentralDS EOS Astro 50D
Montature: Sky-Watcher EQ6 Pro
Telescopi o obiettivi di guida: 80/600
Camere di guida: Lacerta MGEN2
Software: DeepSkyStacker, Adobe Lightroom 3, Noel Carboni's Astro Tools for PhotoShop
Filtri: Orion SkyGlow 2" Imaging Filter
Risoluzione: 1280x853
Date: 10 febbraio 2013
Pose: Orion SkyGlow 2" Imaging Filter: 8x850" ISO1600 -21C bin 1x1
Integrazione: 1.9 ore
Dark: ~21
Flat: ~21
Giorno lunare medio: 29.20 giorni
Fase lunare media: 0.12%
Scala del Cielo Scuro Bortle: 3.00
Temperatura: -7.00
Took the same image data I used for the full Orion's Sword image and reprocessed it with an AOI around the Orion Nebula, applying a 3x drizzle. Came out pretty well I think! The star trailing is more apparent at this zoom level, but still tolerable. The drizzle algorithm also successfully enhanced edge detail compared to just zooming in a bunch on the larger image.
The main difference of processing it this way was being able to more finely tune the luminance curve and color treatment for this object/region in particular, as not only did I not have to worry about the other regions of the image, but I could also see the fine detail much better!
Interestingly, this image is not particularly inferior to the one I got through a telescope recently. It is much better in some ways in fact!
Shotdate: 13 march 2015
Camera: Nikon D4s
Optics: Celestron 9.25" EdgeHD
Guiding: LVI SmartGuider 2 on 500mm f90mm
Exposure: 300 seconds
ISO-speed: 3200 ISO
Frames: 53 light, 50 bias, 26 dark and 32 flat
Stacking in DeepSkyStacker and post-processing in PixInsight
More processing: stacked 19 shots using DeepSkyStacker, built a model for background light (dusk sky glow) and subtracted it from the image. Now the tail can be traced significantly further. The feature perpendicular to the tail on the right is an artifact (glow from a street light).
Target:NGC 1499, California Nebula. An emission nebula in the constellation of Persius at 1500 light years from Earth.
Location:Imaged on 16/12/2020 from St.Helens UK, Bortle 8, No Moon.
Aquisition:20x 180s Ha, 20x 180s (OIII), Gain 139, Offset 21, Total Integration 120 min.
Equipment:Imaging: Skywatcher Esprit 100ED, HEQ5Pro, Zwo ASI1600MM Pro with EFW, BaaderPlanetarium narrowband filters.
Guiding: Skywatcher 9x50 Finder, Zwo ASI120MM.
Software:Aquisition: NINA,PHD2.
Processing: DeepSkyStacker, Photoshop
Memories:Advantage was made of three hours of rare and unexpected relatively clear sky between showers.
Taken during a full Moon with
Nikon d610(stock), iso800
TS-Optics 72mmf6
total of 120 minutes with 180sec 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
Different edits/colorings trying to see which way I liked the look more.
56x30sec exposures, 18 dark frames stacked in DSS. 200mm ISO 500 f/2.8
Telescope: Celestron 11 - CGEM
Reduc 0.6x
Camera: ASI178MM - 120 x 30s
Software: Firecapture - PIPP - DeepSkyStacker - PS6
Another test for lucky imaging with ASI178MM not cooled
No dark, no flat, etc...
Well heavens above - two clear nights on the bounce. I'd forgotten how to do this stuff ;)
My first guided image! :) The Crescent Nebula in Cygnus, a mere 5K light years away.
Bought a modded Quickcam Pro4000, with the adaptor to fit it to the SW 9x50 finder scope, from Badgers/Anton on SGL. Then did the EQ5 handset mod using the kit from Shoestring Astronomy, downloaded PHD and voila. Total cost £90 - can't be bad :) Not perfect of course, but then it was never going to be with an EQ5 and rubbish motors. There was some evidence of wispy bits around this, but it looked more like discolouration, so I took it out - probably expecting too much :)
SW 200p/EQ5
Nikon D70 modded, iso 1600, Baader CC and Neodymium filter
40 x 5 mins for a total of 3 hours 20 minutes
Guiding: Quickcam Pro4000/9x50 finderscope, PHD
Stacked in DSS and processed in CS5
I used the software DeepSkyStacker in order to superimpose 30 standard photos + 10 darks + 10 offsets.
On one hand , we can see that the noise has been decreasing and the contrast is higher but on the other hand the star trails have increased and only the center is sharp :-/
That is a black point of this software.
Canon EOS 600D , 30x30 seconds, 18 mm kit lens, f/3.5, ISO 3200
Press "L" for a better view ;)
Target:IC 410 The Tadpoles Nebula, a dusty emission nebula in the constellation of Auriga at 12400 light years from Earth.
Location:24/12/2020, St. Helens, UK, Bortle 8, No Moon.
Aquisition:20x 180 sec each Ha, (OIII), (SII). Total integration 180 min.
Equipment:Imaging: Skywatcher Esprit 100ED, HEQ5, ZWO ASI1600MM Pro with EFW Mini and Baader-Planetarium narrowband filters.
Guiding: Skywatcher 9x50 Finder with ZWO ASI120MM.
Software:Capture: NINA, PHD2.
Processing: DeepSkyStacker, Siril, Photoshop, Starnet++.
Memories:Clear from 1:00 AM onwards but very tired so used automated schedule in NINA and went off to bed. Used AstroED's excellent Youtube processing tips with markshelly.co.uk arc-sine hyperbolic stretch Photoshop presets, delighted with the results.
Equipment
Imaging Telescopes Or Lenses
GSO 8" f/5 Imaging Newtonian
Imaging Cameras
ZWO ASI 183 MM PRO
Mounts
Sky-Watcher NEQ6-Pro
Filters
Baader B 1.25'' CCD Filter · Baader G 1.25'' CCD Filter · Baader R 1.25'' CCD Filter · Baader L 1.25'' Filter
Accessories
TSOptics TS Off Axis Guider - 9mm · Pal Gyulai GPU Aplanatic Koma Korrector 4-element
Software
Luc Coiffier DeepSkyStacker (DSS) · PHD2 Guiding · PhotoShop CS5 · FitsWork 4 · CCDCiel
Guiding Telescopes Or Lenses
GSO 8" f/5 Imaging Newtonian
Guiding Cameras
Astrolumina Alccd5L-IIc
Acquisition details
Dates:
Feb. 12, 2021 · Feb. 13, 2021
Frames:
Baader B 1.25'' CCD Filter: 18x300" (1h 30') (gain: 53.00) -20°C bin 1x1
Baader G 1.25'' CCD Filter: 21x300" (1h 45') (gain: 53.00) -20°C bin 1x1
Baader L 1.25'' Filter: 61x300" (5h 5') (gain: 53.00) -20°C bin 1x1
Baader R 1.25'' CCD Filter: 21x300" (1h 45') (gain: 53.00) -20°C bin 1x1
Integration:
10h 5'
Had to try it again! Much happier with the lower noise, better cloud detail and overall sharper image. But having 3x as much light will do that for you.
This time, my settings were:
Canon 80D and 70-200 F4L IS
200mm, f4, ISO 1600, 30" x 76
8 darks, 8 biases
Stacked with DeepSkyStacker, default settings
Edited in lightroom and photoshop.
:) in tre notti di fila ho dormito 3 ore a notte, sono sfatto ma contento di aver provato il nuovo tubetto un po' di piu'
grazie al meteo, semiclemente, a Giuliano per l'ospitalità e agli amici che si sono susseguiti nelle tre nottate
Telescopi o obiettivi di acquisizione: APO Triplet 130/910 mm
Camere di acquisizione: Canon / CentralDS EOS Astro 50D
Montature: Sky-Watcher EQ6 Pro
Telescopi o obiettivi di guida: 80/600
Camere di guida: lacerta mgen2
Riduttori di focale: Flattener 2"
Software: DeepSkyStacker, photoshop, Adobe Lightroom 3, Noel Carboni's Astro Tools for PhotoShop
Risoluzione: 1600x1066
Date: 13 maggio 2013, 14 maggio 2013
Pose:
Orion SkyGlow 2" Imaging Filter: 21x300" ISO1600 -6C bin 1x1
Orion SkyGlow 2" Imaging Filter: 16x400" ISO1600 -6C bin 1x1
Integrazione: 3.5 ore
Dark: ~42
Flat: ~22
Temperatura: 10.00
I gave Thor's Helmet (NGC 2359) a shot last year, but this time around I was able to get some more well-rounded data across the various narrowband wavelengths. While this nebula emits primarily in Oxygen-iii, it still has some Hydrogen-alpha and Sulfur-ii data emissions that I was able to more appropriately include (to some degree this time).
This nebula's path across my night sky has it only going above the trees for a brief window (a few hours) on a given night, so this image came from two nights toward the end of December. Each exposure was three minutes long, and I was able to get about 2.5 hours of time on both nights. Individual exposures were stacked in DeepSkyStacker and then the wavelengths were aligned and mapped to the Hubble palette in PixInsight before doing my final tweaks to taste in Lightroom.
Scope: Skywatcher 150PDS
Camera: ZWO ASI 1600MM with ZWO EFW and filters
AstroTech AT8RC + CCDT67 + Atik383L(-25C)
on Takahashi EM200 Temma2 Jr
Astrodon Tru-Balance E-Series Gen2 (with EFW2)
Ha2x900sec,L20x600sec,R2x600sec,G2x600sec,B2x900sec (Total:300min)
Guiding: OAG9 + LodestarX2
StellaImage7, DeepSkyStacker, Photoshop CC2017
Locations: Kamogawa Sports Park, Kibichuocho, Okayama, Japan
Oct 2017
Clustermania :)
A three hour gap in the endless, persistent cloud cover gave me just enough time to do another one of these things. Nebulous stuff takes several sessions under my light polluted skies, and would take months with the weather being as it is, so clusters beckon.
This is M38, aka NGC 1912, aka The Starfish Cluster (don't ask me why), and to the right is NGC 1907. M38 is about 4,200 light years away and is about 25 light years in diameter, similar to that of its more distant neighbour M37. It is about 220 million years old. NGC 1907 is around 4,500 light years from Earth. It contains around 30 stars according to Wiki (looks like more to me) and is over 500 million years old.
This is a closer crop than my previous two cluster efforts, for two reasons: first, the framing was rubbish, and second, the stars at the edges reminded me just how much I need a field flattener!
I'm running out of double clusters to do :)
SW ED80/EQ5
Canon 500D modded, Baader Neodymium filter
56 x 180 sec subs, iso 1600
Acquisition: APT
Guiding: Quickcam Pro4000/9x50 finderscope, PHD/EQMOD/AstroEQ
Stacked in DSS and processed in CS5.
Had some issues with DSS 3.2.2, but 3.3.3 beta 51 and I got along a lot better. This is my first attempt at stacking RAW images. This is a total of 11 RAW files that represent a total of 6 minutes of integrated exposure time. The Pentax K-5ii was set at ISO 800 for all exposures and these are camera-on-tripod subs, "guided" only by the Pentax O-GPS1 unit stuck in the hot shoe, which moves the camera's sensor to compensate for the turning of the earth. The longest sub-exposure was 45 seconds.
Milky Way, Ultra Wide Angle Canon Lens EF 16 35mm f2.8L II , Canon 40D, August 12, 2013, Tripod, 4 images 30 seconds each, DeepSkyStacker
Comet C/2022 E3 ZTF and Mars – 22x120s – 44 minutes
Stock Canon T2i – 70-200mm lens at 200mm f/4
Acquired using BackyardEOS and stacked in DeepSkyStacker 5.1.0
Imaged on February 11th, 2023 at the Danville Conservation Area (New Florence, Missouri).
Thanks go out to Bill Runge for letting me borrow his Canon lens for the night.
I added more expose time, and also this my first try at SHO (Hubble color pallet), and with Luminance from Ha.
OTA: Celestron C10N, 10" f/4.7 newtonian reflector
Camera: ZWO ASI1600MM
Exposure: H-alpha 31x10min, O3 10x10min, S2 16x10min
Mount: CEM70G
Captured with SGP
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (light pollution zone: red)
I added another night of data onto my previous image of IC434. A little more lights helped with the general smoothness of the image. Setup and take down of my equipment multiple nights in a row will result in slightly different field of views which can make it difficult to align when stacking multiple imaging sessions.. luckily DeepSkyStacker could handle it easily with no hiccups. It took many hours in the freezing cold to capture this, layered up on lots of clothes to battle the outside temperature, 3 pairs of socks, 2 pairs of longjohns, 2 sweaters and goosedown jacket, toque, gloves, a thermos full of hot tea, but I still had to walk around the park a few times just to get feeling back in my toes.. And this is barely winter weather compared to the rest of Canada, Being the wet climate here though, the moisture seems to chill you right to the bone even when it is only a few degrees below freezing.
Lights: 40 x 4 mins
Darks: 34 x 4min
iso 1600
Canon 500d (Modified)
Skywatcher Esprit120
Antares ALP filter
NEQ6 + Synguider
Stacked in DSS and processed in Pixinsight
Location: Vancouver, BC
Light Pollution: Bortle Scale 7-8
Temperature: -3°C and -4°C
Messier 94 in Canes Venatici.
Taken from the Starshed Enterprise on 31st March 2020.
A stack of 10x300s exposures using a QHY22 camera on a TS Imaging Star71 - 71mm f/4.9 Imaging APO telescope. Autoguided using OAG. Flats, darks and bias applied.
Calibration and stacking done in DeepSkyStacker and post-processing in PixInsight.
QHY268M + Samyang 135mm f/2
Saxon AZ/EQ6 GT, no guiding
6nm filters Ha: 40x4 mins, Sii: 30x4 mins, Oiii: 30x4 mins
Calibration frames: 6 darks, 250 bias, 35 flats
Captured using Sharpcap Pro & ASCOM EQmod
Processed using DeepSkyStacker, Pixinsight, Photoshop, Lightroom & Starnet
#astro #astrophotography #astronomy #space #deepspace #deepsky #universe #divine #heaven #galactic #light #nebulosity #nebula #nebulae
We had several clear nights on the bounce a week or two back, and I spent the time imaging this thing as Cygnus was still getting up above my house a little late. This is just short of 10 hours, but I put it away because I got the feeling it was out of focus when comparing it with the version I did back in 2011 with the 200p. The stars in the cluster don't look quite as tight as I think they should.
Whaddya reckon? Out of focus?
Equipment
Imaging Telescopes Or Lenses
GSO 8" f/5 Imaging Newtonian
Imaging Cameras
ZWO ASI 183 MM PRO
Mounts
Sky-Watcher NEQ6-Pro
Filters
Baader B 1.25'' CCD Filter · Baader Ha 1.25" 7nm · Baader G 1.25'' CCD Filter · Baader R 1.25'' CCD Filter · Baader L 1.25'' Filter
Accessories
TSOptics TS Off Axis Guider - 9mm · Pal Gyulai GPU Aplanatic Koma Korrector 4-element
Software
Luc Coiffier DeepSkyStacker (DSS) · Topaz Labs DeNoise AI · INDILib · Starnet++ v2.0 · PHD2 Guiding · PhotoShop CS5 · FitsWork 4 · CCDCiel
Guiding Telescopes Or Lenses
GSO 8" f/5 Imaging Newtonian
Guiding Cameras
ZWO ASI120MM Mini
Acquisition details
Dates:
March 23, 2022 · March 24, 2022 · March 25, 2022
Frames:
Baader B 1.25'' CCD Filter: 18x300" (1h 30') (gain: 53.00) -20°C bin 1x1
Baader G 1.25'' CCD Filter: 18x300" (1h 30') (gain: 53.00) -20°C bin 1x1
Baader Ha 1.25" 7nm: 20x300" (1h 40') (gain: 200.00) -20°C bin 1x1
Baader L 1.25'' Filter: 62x300" (5h 10') (gain: 53.00) -20°C bin 1x1
Baader R 1.25'' CCD Filter: 18x300" (1h 30') (gain: 53.00) -20°C bin 1x1
Integration:
11h 20'
Continuing my collection of Not Comets (Messier objects), this is the hugely exciting M92. On its own it would be a reasonably bright cluster (not from my garden) - but when you're in the same constellation as M13, you tend to pale into insignificance.
Now the core of this was interesting. It seems to be a lot brighter even than the core of M13, and was well saturated at 180 seconds. I did some shorter subs to capture the core (10 seconds in fact) and manually stacked them because DSS just chucked out a grey splodge. Layered in, you can at least see some detail in the centre. This is a wider field of view, just to ring some changes.
Now, what next I wonder? :)
SW ED80/EQ5
Canon 500D modded, Baader Neodymium filter
93 x 180 sec subs, iso 1600
Acquisition: APT
Guiding: Quickcam Pro4000/9x50 finderscope, PHD/EQMOD/AstroEQ
Stacked in DSS and processed in CS5.
12 subs of 300secs each which were captured using Canon 135mm f/2 lens (stopped down to 2.8) attached via a Geoptik adapter to a SX Trius 694 mono CCD were stacked in Deepskystacker and processed in Photoshop CS2.
Taken 05/01/22
Much needed reprocess :)
This is a pigging thing! Either my skies ain't up to it or the ED80 is too slow, but this is 11 hours of hard work (well, sort of) and required no small amount of encouragement during processing. And the noise you wouldn't believe!
Unlikely to get the opportunity to add to it this year, so maybe next :)
No apology for the spikes - they hide a multitude of sins, and it is a christmas tree after all :)
SW ED80/EQ5
Nikon D70 modded, Baader Neodymium filter
162 subs, 3-6 mins, iso 800-1600, total 11 hours 2 minutes
Guiding (RA only): Quickcam Pro4000/9x50 finderscope, PHD
Stacked in DSS and processed in CS5
Ha: 48 x 600 seconds, ISO 800
RGB: 40 x 480 seconds, ISO 400
50 darks, 50 flats, 200 bias for each
Total exposure time: 13+ hours
Equipment: Canon 450D (full spectrum mod), Orion 8" f/3.9 Astrograph, Atlas EQ-G, Astronomik 12nm HA filter
Software: Pixinsight, DeepSkyStacker, Photoshop
Taken with a TMB92L, Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 32 180-second light frames and 28 180-second dark frames, all at ISO 400, as well as 31 flat and 25 bias frames. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop. Diffraction spikes added with StarSpikes Pro.
Full spectrum modified Canon 6D on Skywatcher Esprit 100 APO F5.5 triplet refractor. The only filter used was an Astronomik L (UV/IR cut off filter) 43x240sec lightframes @ISO1600 (2.9 hrs) 65Bias frames, 20Flatframes, no darkframes. image date 11-sep-2015. Stacked in DeepSkyStacker, processed in Pixinsight. (DBE, background and colour calibration, histogram stretch, curves adjustment. No noise reduction.)
The Cone nebula and Christmas tree Cluster in Monoceros. Image dates: 16,17,18,19 & 20 feb 2017. 108x 240 seconds iso1600 with Esprit 100 triplet APO / Flattener/ Optolong L filter Canon 6Da on 10 Micron GM2000 HPS II mount. All exposures unguided. Stacked/calibrated in DeepSkyStacker with 150 Bias frames and 40 flat frames. Processed in Pixinsight.
Knight Observatory, Tomar