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By Simon Dunsmore
Selling my complete set up as I'm moving into imaging. Happy to split if it helps.
Skywatcher 200pds with dual speed focuser, finderscope and all relevant dust caps.
Synscan goto mount with polar scope. Cables, handset etc.
I will even throw in a lazer colminator (boxed) see images
This is a great kit for visual observations. All in mint condition, only slight wear to dovetail Bar and slight marks to counter weights and bar.
All with original boxes and packaging. I've really looked after this.
200MM (8") F/5 PARABOLIC DUAL-SPEED GO-TO NEWTONIAN REFLECTOR
The new Sky-Watcher EXPLORER-200PDS Newtonian Reflector incorporates the same superb mirror-set as the Explorer-200P Black Diamond Series, but with two significant advantages. A Dual-Speed 10:1 ratio focuser is now included for excellent focusing precision. Also the tube length has been slightly shortened to optimise performance for prime-focus photography.
*Note: the Explorer-200PDS has a larger 58mm secondary mirror, for enhanced field illumination, compared to the Explorer-200P which has a 52mm secondary.
Looking for £550
EQ5 £350
200pds £245 with Lazer Collimator £230 without
Ideally collection preferred, but can arrange postage at cost.
I'm located in Folkestone, Kent
Message me for more information.
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By Kronos831
Hey guys it's me agaiinn. Recently I have been thinking about which telescope i should buy(its going to be my first telescope!!!!!) I have narrowed it down to 2 choices! The Skywatcher explorer 200p and the Skywatcher explorer 200pds
I just can't seem to chose oneee.
I want to do Astrophotography and i have heard that the Dual Speed focuser is going to help a lott. can someone please explain how? I m a total newbie and have just begun reading about Astrophotography.
On the other hand i ve heard that some eyepiece s will need an extension tube to help them achieve focus (due to the secondary mirror placed closer to the primary) and i really want to see through the telescope my self.I dont know if the extra 140€ that i have to pay to get the focuser and the pds and eq5 (rather than just getting the 200p and eq5 combined ) is worth it .Does it really make that big of a difference?? I hipe somebody can help me
Thanks
-Kronos
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By bottletopburly
Finally making progress with guiding and dithering and the autofocuser , sw200pds , modded canon 1000D , Eq6 belt mod -7x300sec 25 flats -25x Bias as darks
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By steppenwolf
Pickering’s Triangle (Seimis 3-188)
It is a little early in the season to be imaging this object as it didn’t appear above my local horizon until 00:50 when I started the project earlier this month but with nights getting shorter as we approach the summer solstice, it made sense to make an early start even though it took several nights to capture the data while ducking and diving between the clouds and early morning mist!
Discovery
Pickering’s Triangle is part of the supernova remnant known as The Veil Nebula in Cygnus. The Veil Nebula itself was discovered by William Herschel in September, 1784 but this faint region was only later discovered photographically in 1904 by Williamina Fleming at the Harvard Observatory. The discovery was made post publication of the New General Catalogue (NGC) so it isn’t included in the catalogue. Although it wouldn’t happen today (I hope!), the custom of the time was to credit the discovery to the lead astronomer, in this case Edward Charles Pickering, the director of the observatory.
Image Stats
Mount: Mesu 200
Telescope: Sky-Watcher Esprit 150
Flattener: Sky-Watcher Esprit specific
Camera: QSI 683 WSG-8
Filter: Astrodon 3nm Ha and 3nm OIII
Subframes: 6 x 1800 sec Ha, 13 x 1800 sec OIII
Integration: 9.5 hours
Control: CCD Commander
Capture: MaxIm DL
Calibration, Stacking and Deconvolution: PixInsight
Post-Processing: PhotoShop PS3
Description
The nebula can be found in the north-west quadrant of the Veil Nebula near NGC 6974 and 79 (see whole Veil Nebula image below). Lying around 1,400 light years away, the beautiful filamentary elements are the expanding shock-wave from the progenitor star that went supernova here somewhere between 5,000 and 10,000 years ago.
Position within the Veil Nebula
Visually, the nebula responds well to the use of an OIII filter as the region is rich in OIII emissions as can be seen in the blue/green filaments in the above images.
Photographically this is a wonderful object that responds well to both LRGB and narrowband imaging and the example shown here was captured using Ha and OIII filters. Although there are sulphur emissions (SII) in this region, this object responds well to my favourite imaging method of 'bi-colour’. This process uses just Ha and OIII filtration wherein the OIII data is mapped to both the ‘Green’ and ‘Blue’ channels and the Ha is mapped to the ‘Red’ channel. The greyscale images below show the individual Ha (left) and OIII (right) images used to produce this image. As you can see from the 'Stats' above, I have a whole load more Ha to collect to complete the image!
The individual Ha and OIII images
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By Marci
An absolute swine to capture with a full-spectrum camera full of pubes & no CLS filter, thus hoovers in Wakefield’s light pollution, hence this is a grayscale image (otherwise the entire thing is tinted in an unremovable orange that swamped out any natural colour). Only an hour of data... 15x 240s @ ISO800D, EOS1000D (modified), Explorer 200PDS
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