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jetstream

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About jetstream

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  1. Eagerly waiting your report!
  2. From your dark site Iain you will see the features of the Rosette.
  3. I think I will need it
  4. This is a great question and well worth discussion. Understanding this is one of the keys to great views and what object to pick and when. I hope some others chime in...
  5. The detail in this object is incredible. I looked for images to illustrate how I see it but so far they are all too good. The Lumicon UHC showed much more than the Lumicon OIII using the filterslide on the Rosette and the Monkey Head. The MH was the best seen yet as well...it looked like a different object last night, with much chattery structure and bright. For the first time I also saw some wisps draping down under the drowned out wings in M42, what a sight. M43 is another object that came alive with a large mottled rift though it closer to the tip than not. The Docter 12.5mm UWA was superb showing the details mentioned in M42,M43 and matches my scope well, better than the excellent 10E that I just sold. A lot of this is matching components- to the scope and in particular to the eye and what it wants for illumination on each target. And of course...dark, transparent skies.
  6. Thanks Clark, I wonder what I can expect to see with the 15" on the Quasar- did you get separation? I'm just going to try for elongation and this might not be realistic, not sure...
  7. You know, I believe that I'm starting to see some objects better in the 15" after getting some very bright views in the 200mm f3.8- or who knows why? Sky conditions 21.6mag/excellent trans. I first sky cruised around NGC 2174 but thought I had stumbled upon another nebula! This object showed so much structure and bright shade difference with the 21E/UHC I thought it was something else. A brief look at it and the I skydove down to the Rosette, with very high hopes... The top portion ( in newt) showed a big detached patch longer than wide above the rest of the nebulosity underneath it and some more detached patches floating around. The lower portion showed a billowy nature to the top of this area. Structure, shade differences, billowing, detaching... my words are not describing this view well...it was my best ever yet in the many hours I spend on it. This view rocked me back, I wish others could see it this way too- maybe some do, not sure. To cap the evening off a quick trip into UMA revealed NGC 3998,3990,3982,3972 and 3977. NGC3977 was held in direct vision with the best EP for the job the 10BCO. I am preparing to view the Double Quasar, in UMA, near NGC 3079 a showcase galaxy in its own right and the faint NGC 3073 was no problem in direct vision. I'll need luck with the Quasar... And then there was M42....
  8. The Heritage 130P is a surprising telescope, the views have been VG and if extreme portability is required its a good option. The larger 150mm f8 and 200mm f6 would be an excellent choice and I would personally lean toward the 200mm f6 dob.
  9. To back up a bit, is the scope collimated with the sight tube and cheshire first? In the end all the tools must agree.
  10. Thanks for the vote of confidence Mike I am no expert however, but Jason D is and hopefully he will chime in I can AC my reflectors no problem though...
  11. One could possibly extract a few things. 1: light domes can grow under poor transparency 2: light pollution control does work as evidenced by the images, 2A has much smaller domes 3: severe light pollution can reach over 30 deg high- answering the title of the thread 4: light domes can overlap,Cheyenne and Fort Collins are very close to overlapping So from my experience seeing the small dome at 40 miles under sketchy transparency, it might be possible that Ottawa's and Montreal's domes might overlap under certain conditions. A good indication of sky conditions might be revealed by the question I asked...does the Milky Way show defined structure around "B" on your map or anywhere you have observed from?
  12. Great report Paul , I find upping the mag on this object works very well too. In the 15" under good conditions I can see very fine radial filaments in the first shell with a 2 tone green (turquoiseish) showing, the outer differing slightly from the inner in color. Keep at this object Paul, it will reveal more and more, I've spent many hours on this one and will spend many more.
  13. One scope? the 15" dob, I wheel it out of the garage, use it then wheel it back in. This scope provides memorable views to say the least.
  14. A 500 dollar 200mm f6 SW dob just might give the 2000 dollar scope (of any kind) a run for its money... I have recently been testing a 130mm SW newt (270 $CDN) that my 90mm APO frac ($$$) doesn't like. I use this link a lot but it tells much about apertures role in seeing detail, just make sure your seeing can support the aperture/mag. Stu's comments are valuable for sure (and others). http://www.damianpeach.com/simulation.htm If we can vote: SW200mm F6 dob.
  15. Thanks!