ICEINSPACE
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Moon Phase
CURRENT MOON
Waning Crescent 20.4%
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09-02-2010, 10:27 PM
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Let there be night...
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Join Date: Aug 2006
Location: Hobart, TAS
Posts: 7,639
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Sorry David 
Wow, wow, wow. I've just tweaked collimation to within a sploofteenth of a skoggin, whacked the FeatherTouch BRC2020 on, and the Jewel Box through a Tak LE24 EP is truly spectacular. I've never seen so many colours in there. Clarity is brilliant. Seeing is actually quite good. M42 was unbelievable too - all six in the Trap just jump out, and with an OIII on the nebulosity is well-defined and, well, nebulous.
Very happy chappy. 
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09-02-2010, 11:22 PM
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Registered User
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Join Date: Feb 2005
Location: Monto
Posts: 16,741
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Wonderful news!!
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09-02-2010, 11:28 PM
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Registered User
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Join Date: Apr 2008
Location: Wynnum West, Brisbane.
Posts: 4,166
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Jezz, Chris has a shinny new scope as well. Sort of takes the gloss off my little stellarvue 60mm finder that arrived today  What's the focal lenght on that Chris, they are around 2 kilometers aren't they
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09-02-2010, 11:33 PM
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Let there be night...
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Join Date: Aug 2006
Location: Hobart, TAS
Posts: 7,639
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LOL! Go the StellarVue Robin!
Here are the specs, and yes, F/L is darn long for an 8.5 inch scope:
Quote:
The Takahashi Mewlon 210 at prime focus provides a focal length of 2415mm, focal ratio of f/11.5 and image circle of 18mm.
Primary mirror diameter measures 220mm (f/2.9) with a secondary mirror amplification of 65mm (4X) and secondary obstruction of 0.32 (31%).
The Takahashi Mewlon 210 measures 700 mm long, 244 mm in diameter and weighs 17.6 lbs. (8kg).
It offers a limiting visual magnitude of 13.4 and a light grasp of 900x - providing an outstanding resolution factor of .55 arc seconds.
The Takahashi Mewlon 210 with optional reducer can achieve a focal length of 1961mm, focal ratio of f/9.3, image circle of 39mm and a 1.2° image field.
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12-02-2010, 12:42 PM
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Scotland to Australia
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Join Date: Jan 2009
Location: Canberra
Posts: 1,645
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thats a lovely piece of equipment Chris, i should have known you would get some high-end gear, cant wait to see your moon shots, like the one from last year, that was epic
congrats
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12-02-2010, 06:11 PM
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Registered User
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Join Date: Dec 2005
Location: Sydney
Posts: 1,883
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Its refreshing after all these threads on RC vs. Newtonian to see people cooing over a simple Dall-Kirkham Cassegrain with an ellipsoid primary and spherical secondary mirror and twice the coma of an equivalent Newtonian . People are getting far too anal about relative merits of optical designs if you ask me
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12-02-2010, 08:10 PM
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Registered User
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Join Date: Aug 2006
Location: Western Australia
Posts: 8,277
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Quote:
Originally Posted by Satchmo
People are getting far too anal about relative merits of optical designs if you ask me |
Couldn't agree more,
Chris its a lovely looking scope (can I say that or isn't it manly enough) or should I say struth mate thats one bonza scope, personally if you like it thats all that really matters ATEOTD
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12-02-2010, 10:06 PM
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Widefield wuss
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Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,994
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Chris - Congrats on the Mewlon! Done any imaging with it as yet?
I got something on the way to quench my thirst for long focal length work! should be a stunner...
Cant wait to see some lunar photography with the Mewlon mate!!
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15-02-2010, 05:12 PM
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Registered User
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Join Date: Jul 2006
Location: Perth, WA
Posts: 366
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I bet that focuser is a real smooth piece of work  cant wait to see some shots from your scope.
cheers,
Grahame.
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15-02-2010, 06:15 PM
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Registered User
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Join Date: Sep 2009
Location: Macquarie Park or Plumpton, NSW
Posts: 157
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Hey Chris... congratulations for the Mewlon.
That is a dream scope!
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18-02-2010, 09:17 PM
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Let there be night...
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Join Date: Aug 2006
Location: Hobart, TAS
Posts: 7,639
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Thanks everyone
I've had the M210 out last night at our society's local field "Stargard" in S/W Sydney. I love it. One of our guys, Moh, loaned me his 100 deg FOV 14mm Explore Scientific 2" EP for the evening, and the 2450mm-odd focal length gave me about 178x mag - and fantastic views of the common bright DSOs. They were very, very enjoyable, and you could swin around in the porthole view. Truly wonderful clarity on-axis, and the contrast in surrounding nebulosity was stupendous. The faves - M42, NGC2070, 47-Tuc, Omega Cen, Homunculus in Carinae and a couple of other delights such as the Jewell Box were all different to any other scope I've looked through before. They were all ideal targets for this machine. Seeing was very average, but when I did have periods of steady air it was just fabbo. Love it, love it, love it! 
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18-02-2010, 09:21 PM
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IIS Member #671
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Join Date: Dec 2005
Location: Canberra
Posts: 11,159
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I read that as Humayun in Carinae.
lol.
H
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18-02-2010, 09:24 PM
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Let there be night...
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Join Date: Aug 2006
Location: Hobart, TAS
Posts: 7,639
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Humuncayun... Humayunculus... LOL!
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18-02-2010, 11:15 PM
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Widefield wuss
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Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,994
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Nothing like a taste of aperture to whet the appetite for visual astronomy.. The M210 is a stunning way to do it...
Did you get a chance to have a peep at Jupiter or Saturn at high-ish mag? 220x~300x? I suppose in poor seeing it might not have shown its true colours, but we are talking about a DK optical system... high power planetary/lunar work is what this thing was made for!
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