LookatRigel
member
Reged: 02/28/05
Posts: 77
Loc: Spain
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I had troubles with my guiding setup so I tried with lots of short subs to M42.
It's a composite image from 85x60" and 30x30" ISO 200, Canon 350 D with IR filter removed and ASA 10" f:3.8 astrograph:
The image is quite cropped.
Thanks for looking.
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ASA astrograph N10 f:3.8; WO Megrez 80 Superapo, SW 200/1000
Losmandy G11 Gemini
Canon EOS 350D mod
http://astrosurf.com/astrocaza/Index.html
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Daniel Chang
sage
Reged: 07/05/06
Posts: 200
Loc: Hong Kong
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good shot!
Daniel
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http://www.ec-photo.com/Daniel+Chang/
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Tazzz
sage
Reged: 02/24/06
Posts: 282
Loc: Cambridge Ontario
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Real nice love all the wisps.
Cheers
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Dennis Rowe
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8" Newt
SkyWatcher 80mm
SkyWatcher Pro 80mmED
GSO RC 8"
Canon 350D
DSI Pro W/Filters
QHY8
LXD75
EQ6 PRO
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Kentari
scholastic sledgehammer
Reged: 11/19/06
Posts: 794
Loc: Belgium
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Wow, very impressive considering the short subs! I'm even more startled at the use of ISO 200. I thought the faint outer filaments wouldn't get out of the read noise...
What were the circumstances of this exposure; specifically light pollution?
Koen
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Darkstar 355 f/5 Dobsonian
Orion UK 8" f/4.5 Newtonian and WO ZS 80 FD on Losmandy GM8
Canon 20D DIY mod with Baader filter
A bunch of lenses: 10-22mm f/3.5-4.5, 17-40mm f/4, 50mm f/1.4, 70-200mm f/2.8, 300mm f/2.8
www.koenvangorp.be
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LookatRigel
member
Reged: 02/28/05
Posts: 77
Loc: Spain
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Thank you!
Quote:
What were the circumstances of this exposure; specifically light pollution?
Light pollution was very low. I travel to a quite dark place not very far from my home. Orion visual magnitude was around 6,4. Of course this helped. It was very dewy and with some ice (-2ēC). 
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ASA astrograph N10 f:3.8; WO Megrez 80 Superapo, SW 200/1000
Losmandy G11 Gemini
Canon EOS 350D mod
http://astrosurf.com/astrocaza/Index.html
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Galaxy001
Carpal Tunnel
Reged: 06/08/06
Posts: 1633
Loc: San Ramon, California
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Beautiful work, especially for short subs. Why crop it at that point and leave out the running man?
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Zach
Remember to Keep Looking Up!
My observatory:
 Meade LX90 GPS 8" UHTC
With a (Meade) 18 mm UWA ep and a 3x telextender
Other cool stuff:
Meade ETX-60
DSI Pro
60 mm Solar Filter
Celestron dew shield
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RStar
scholastic sledgehammer
Reged: 03/04/06
Posts: 782
Loc: New Jersey
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Quite impressive!!
Bob
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Celestron CGE
Orion 190 Mak-Newtonian
TeleVue NP101
Orion ED80
WO 66 SD
ST-4 guider
Hap Modified 350XT
http://www.pbase.com/bobstarzynski/astro_imaging
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novbabies
Postmaster
Reged: 06/05/05
Posts: 15678
Loc: Northern Georgia!
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Tomas, a magnificent image of the Heavens!!
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Good Seeing!
Mark
Orion 12" XTi f/4.9
VERY old Edmund 6" f/8 reflector
Assorted binoculars
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cocobolo
Carpal Tunnel
Reged: 10/27/07
Posts: 1550
Loc: british columbia, canada
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Truly spectacular!!
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tidroplane
Pooh-Bah
Reged: 10/02/06
Posts: 1181
Loc: Everett, Wa. USA
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Very nice!
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Clear skies.....David
AT111EDT
AT80EDT-CF
AT66ED
G-11, Gemini
ST2000XCM
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Strgazr27
Vendor - Deep Space Mods and Composites
Reged: 10/04/04
Posts: 6984
Loc: StonyHill Observatory
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Quote:
Beautiful work, especially for short subs. Why crop it at that point and leave out the running man?
10" F/3.8 is the answer. It's almost a 1000mm Fl.
Beautiful shot with an even more impressive OTA.
CS's
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Bobby
StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG
YAHOO TMB 130SS Group
Astronomy Technologies Yahoo Group
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LookatRigel
member
Reged: 02/28/05
Posts: 77
Loc: Spain
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No, no... the original field was wider, but as I said my mount didn't work properly that night. With 85 exposures, even they were of only 1 minute in order to avoid star trails, the frame was not the same in each one, so the final stacked image had great corners quite darker than the center.
Maybe flats could have improved the result.
Thank you all for your nice comments.
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ASA astrograph N10 f:3.8; WO Megrez 80 Superapo, SW 200/1000
Losmandy G11 Gemini
Canon EOS 350D mod
http://astrosurf.com/astrocaza/Index.html
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Strgazr27
Vendor - Deep Space Mods and Composites
Reged: 10/04/04
Posts: 6984
Loc: StonyHill Observatory
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Quote:
No, no... the original field was wider, but as I said my mount didn't work properly that night. With 85 exposures, even they were of only 1 minute in order to avoid star trails, the frame was not the same in each one, so the final stacked image had great corners quite darker than the center.
Maybe flats could have improved the result.
Thank you all for your nice comments.
I find I need to crop almost all my subs as I have a slight polar misalignment to help offset frames. Still a beautiful shot. How long was the wait for the ASA?
For the original poster, here is the actual FOV.
CS's
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Bobby
StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG
YAHOO TMB 130SS Group
Astronomy Technologies Yahoo Group
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weatherandsky
Carpal Tunnel
Reged: 12/27/06
Posts: 1848
Loc: Ontario, Canada
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This is absolutely incredible!!!
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Kerry
* Weather and Sky Photography *
QHY-8, Canon 40D unmodded, Meade DSI-C
Meade 12" LightBridge
Astro-Tech 8in RC
Celestron C6-SCT
Sky-Watcher Equinox 80mm APO
Omcon 4.5" Newt
Celestron Skymaster 15x70
Canon 50 f1.8, 100 f2.8Macro, 100-400 f4.5-5.6L, Sigma 17-70, 18-50, 28-300
CGE, CG-5 GT
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LookatRigel
member
Reged: 02/28/05
Posts: 77
Loc: Spain
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Quote:
How long was the wait for the ASA?
I was lucky, "only" two months. There was a stock when I bought it, but now there's a great delay.
Thaks!
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ASA astrograph N10 f:3.8; WO Megrez 80 Superapo, SW 200/1000
Losmandy G11 Gemini
Canon EOS 350D mod
http://astrosurf.com/astrocaza/Index.html
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wrather1
AstroBear
Reged: 10/25/05
Posts: 3880
Loc: Dallas, Texas
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A beautiful picture.
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"Don't worry about what telescope you own, or its quality. Just get out under the night sky, and enjoy God's wondrous universe." - T. M. Back
Meade RCX400-12 "Ursa Major"
TMB 130SS + EQ6-PRO "Ursus Polaris"
Orion ED80 "Ursa Minor", WO ZS66ED "grab-'n'-go"
EOS 30D (Hutech), ToUcam Pro, Star Shoot Autoguider, Meade DSI
North Texas Clear Sky Chart
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s58y
Postmaster
Reged: 12/12/04
Posts: 5509
Loc: Eastern NY
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Fantastic picture, with lots of faint detail despite the short subs. The resolution of the central features of M42 is amazing.
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Hutech 30D, SBIG ST-402 autoguider
SV80S, TV102iis
Old camera lenses: 800mm f/5.6, 180mm f/3.4
AP900, Barndoor tracker
http://www.pbase.com/s58y
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ChazK
Pooh-Bah
Reged: 11/23/05
Posts: 1453
Loc: Melbourne, Florida
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Man...that one gives me hope. I was concerned that anything less than 3-4 minute subs would get drowned out due to a low S/N ratio.
That is quite breathtaking!
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Tak TOA 130mm/NJP Temma2
Tak FS 60CB
Canon 40D (unmodded)
Canon EF 28-135mm f/3.5-5.6
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gewehr43
sage
Reged: 07/07/06
Posts: 356
Loc: Albuquerque, New Mexico
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Amazing Photo!!
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Daniel Z
10" Meade Starfinder on CI700
SV85S Apo on LXD500B
34mm Celestron Axiom
22T4 Nagler
13T6 Nagler
6.7mm Meade UWA
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