Uranium235
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Everything posted by Uranium235
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Yes, I used OIII for that image (same amount, 80min). But the blue is derived from the cannistra bilcolour process as detailed here: http://www.starrywonders.com/bicolortechniquenew.html It takes a bit of practice, and usually needs some selective colour adjusment in Ps to shift magenta to blue. Also, it helps if you remove all of the stars from the colour layer before blending with Ha luminance in order to prevent blue halos.
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You know, I'm not sure whether insulation on a telescope is the way forward. Surely all that does is lengthen the cool down process? If you get a bit of ice on it after a long winter session, I don't see that as a bad thing. If anything, the colder it gets - the better it performs.... just don't try touching it with bare hands or licking it...lol
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Just revisiting some old 130pds data with 2017 processing methods, hard to believe just 80min of Ha went into this
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Unfortunately not, it will move the camera out way too far. Its better used for EPs to be honest.
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I've tried getting my 130 to play nicely with the Star71, but it usually turns our to be a pain to process (star sizes). The plan is that if I use identical focal lengths, and fairly similar pixel sizes it should (in theory) be a better match, and hence easier to process the data.
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I've started ordering the bits required for a 130pds dual shooter, starting off with the mountings... a new vixen saddle, and some M5 socket head screws and nuts. Next up will be an ultra-short t-ring adaptor, then finally the telescope itself. Cant get it all straight away, but it should be ready sometime in December (with luck). I'll be running the DSLR (for RGB or OIII) via the SWCC for the extra boost in photographic speed, and the CCD via the MPCC MkIII for (luminance or Ha).
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Guiding tonite!
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Not really, if you have a dew shield - dew will never make its way far enough down the tube to give you any issues.
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Mulling over the prospect of a 130pds dual shooter... cheap, cheerful, but effective.
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Its alright
I have a plan, there is quite a bit of give in one on one of my dual bar saddles - so its possible to re-attach the saddle a bit skew-iff - probably just enough for it to point the 2nd telescope in the right direction (or close enough). No up/down adjustment required, its just left/right.
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Fireworks already?... Really?!
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Kezzba's Hypothesis=Planet 9 a black hole.
Uranium235 replied to Kezzba's topic in Physics, Space Science and Theories
Black holes cannot have a mass so small, the definition of a black hole is that it is a collapsed massive star... and as I'm sure you are aware - that is much, much heavier and denser than something that is merely a few times the earth's mass. No maths required really! -
For those who were unable to make it to the workshop, had to drop out to deliver another talk (or who missed the first hour... whoops!) - I will attach the notes for both the basic and advanced sessions. The advanced did run over by quite a bit as it was always going to be a challenge to squeeze such a complex process into just one hour... although Mr Ibbo did quite well for his first bash at it. For the original Scott Rosen walkthrough, the link is as follows: http://www.astronomersdoitinthedark.com/C025-Bringing-Out-the-FaintStuff/M81M82IFN-Bringing-Out-the-FaintStuff-Final.html Its slightly different to how I do it since we were using a couple of different tools, but both are suitable for skinning the same proverbial cat (give yourself at least 2-3 hours to attempt it!) * If you wish to distribute or quote any procedures or data, please remember to credit its original source (or link to this thread). Advanced.zip Basic.zip Stock curves.zip
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Thats a smashing M27, it looks like you've got that 130pds nailed!
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Hmmmm I may be making a belated return to this thread before long since I've flogged off most of my optics now - leaving just the Star71 and the 130pds. I think I'll be just sticking to small telescopes from now on since I just don't (or wont) have the storage space soon for anything bigger. But I'm happy that others have taken up the baton and put together some great images with that little telescope.
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Shhhh! Dont mention the "R" word!
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If I could give that two likes, I would!
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Guiding tonite! Star71 making belated return to the night sky.
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Guiding tonite!
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I've just been browsing a few images from the 130pds (as you do), just to see how many of my images turn up via Google when I noticed a couple of what seemed like my images with a watermark on.... errr... whats going on here?! (I thought) as quite a few of my colour images have a very distinctive colour scheme. So, I've taken a closer look and yes - indeed they are mine. Any AP'er will usually know their images as well as their own kids, so its a bit of a silly idea to try and nick something then slap a watermark on it, because sooner or later it will get found out. Fortunately for them, I'm not overly precious about vast majority of my images - I'd only get seriously miffed (and take action) if one of my competitive images turned up in a similar way. They could have at least asked me if it was ok! But, on the other hand I'll take it as a compliment that they've used it to try and sell something It looks like a Malaysian version of gumtree or fleabay, and probably the ad is a little misleading since the images were taken with a modified 130pds, and not with the actual scope on sale (if selling a scope, I awlays use images taken with that exact telescope). http://www.mudah.my/Sky+Watcher+Explorer+130PDS+EQ3+Steel+Telescope-55553369.htm
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Its also designated as IC5070 (Pelican Nebula). Another panel above that would be NGC7000 (North America Nebula) 4 panel mosaic - 130pds.
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Its usually standard practice to refocus between filters, even on an apochromatic system like a newtonian. Thats mainly due to the focus shift that occurs as the telescope cools over the course of a session, but also takes into accout any other bits of additional glass you may have between the telescope and camera (ie: coma corrector).
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If you tweak the tension just right, you dont need to use the locking screw
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I have a plan, there is quite a bit of give in one on one of my dual bar saddles - so its possible to re-attach the saddle a bit skew-iff - probably just enough for it to point the 2nd telescope in the right direction (or close enough). No up/down adjustment required, its just left/right.
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