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Showing content with the highest reputation on 03/08/19 in all areas

  1. The Southern Pinwheel Galaxy M83 from the 6th of April, Mandurah Western Australia, conditions poor. This was my 3rd attempt with the first two attempts being much worse than this. 198 x 30 seconds, ISO 1600, 24 darks. Stacked in Sequator, edited in PaintDotNet and Fitswork. Sony a5000 Antares 6" achro refractor SkyWatcher EQ6 Pro
    12 points
  2. Our guest Dave was interested in the Cocoon so we ran the dual TEC on it for a couple of nights, though a computer died and left one half of the rig hors de combat. By night two it was running again under a spare PC and captured some luminance. Anyway I took the 11 hours of HaLRGB we captured and added it to the twenty or so hours I already had from two previous runs, one in Yves' 14 inch ODK, hence the diff spikes. This hybrid image is the result. Ha was added to red in blend mode lighten and most processing was done in Ps CS3, though we also used PI for photometric colour calibration and DBE
    7 points
  3. I had planned on doing a mosaic of the Cygnus loop, but for whatever reason, it didnt work out.. Horizontal panels lined up, but could not get them lined up on the vertical plain.. Probably not enough overlap. Ill revisit again at some point. Went for the Witches Broom.. Overall, it came out quite nicely. Really liking the OSC with the Quadband Filter! Details: SW Esprit 100 SW EQ6-R Pro Mount (guided) ZWO ASI071 OSC Altair Astro Quadband Filter 21 x 300s Exposures (Total = 1hr 45min) Processing - PI and PS
    6 points
  4. I have been looking for Enceladus all through this Saturn season, without success until now! Last night, the conditions were right, Saturn was beautifully clear, Cassini razor sharp and the relatively good transparency reduced the haze around the planet and made the colours of the disk much richer creamy-orange. Also, Enceladus (mag 12.3) was due W of Saturn in a favourable spot. Moving Saturn out of the field to the E with the SkyTee2 slomo knob, and then allowing it to drift back into the field of view showed Dione (mag 10.9) first as a bright pinpoint, then shortly after and just befor
    6 points
  5. Taken at Rhossili beach on the Gower Coast, this time of year the Sunflowers make a great show with the Milkyway in the backround
    6 points
  6. Last night the sky was good here in Cambridge. I took the telescope out quite late (at about 11pm). After a couple of collimation rounds, I pointed at Saturn. For the whole session, the fan was on. It was incredible how Saturn was getting better and better at the eyepiece as soon as the mirror was cooling down. Seriously, the improvement was observable. After about 15 minutes, Saturn was showing some lovely details. The Cassini division was visible almost all over the rings. To be honest, it wasn't just visible, it was a nice black lane. In the lateral part of the rings ("wings"), some d
    5 points
  7. Andromeda last night. DSLR, 80mm refractor, iso 1600, 120 sec x 30 subs, 22 darks, 25 bias, 21 flats, processed in PI. Seeing good, temp cool, some dew. G11 prefers heavy scope, always a pain guiding light setup. Read about some tying weight with rope help keep RA engaged, may try it next time. Image below uncropped - binned result. New to PI prob made some mistakes. Few hot pixels in red made it through, large stars brighter on one side than other and flats missed a dust bunny unsure why on all of above. One of better images ive taken in awhile flaws and all. Got some dat
    4 points
  8. The August galaxy of the month (the 100th one actually) from the Webb Society is NGC 7042 in Pegasus. https://www.webbdeepsky.com/galaxies/2019/ So I thought, better get that new 20 inch dob out and try it. The sky was a bit milky and there was a lot of high cloud around but that was not going to stop me! Well I found NGC 7042 fairly easily. You can tell its a spiral as it has that characteristic low surface brightness glow across its entire face. It sits next to a triangle of stars. I then worked hard to see if I could see NGC 7043. I could not see it last time I tried when I h
    4 points
  9. There are quite a few excellent milkyway images being posted at the moment and I particularly like that we get views of the milkyway not only from UK but from members posting from locations all over the world and also when we UK astronomy types holiday abroad and can get some astro kit packed under the radar into the luggage - I managed to convince my better half that I simply must have my tripod and ball head along with the very important wide angle lens, despite the fact we were on a safari and the 500mm zoom was the default lens. Anyway, it was a holiday of firsts, first time in Africa, fir
    4 points
  10. Managed a 30 minute spell last night between garage roof, neighbours roofs and trees. Very spur of the moment but egged on by finally being able to lift the C8 onto the AVX after damaging shoulder 18 months ago. Not fantastic but with the low elevation and heat haze from roofs pretty relieved to see it all still works Best 25% of 5000 frames .Stacked in Autostakkert, registax wavelets and sent to phone to tweak colour balance / noise in Photoshop express. C8 edge / Televue 2 x barlow / ZWO 224
    3 points
  11. Hi there. New to this board. This looks like a good place to hang out and talk about SDRs as applied to meteor echoes and more. I've been experimenting with SDRs for months now as they combine some of my current and past hobbies, radios (shortwave listening), computers, and electronic gadgets. I started using SDRs for shortwave listening (whatever's left of that) and quickly found myself interested in other parts of the RF world, meteor scatter echoes being the low hanging fruit. One of my goals has been to set up a highly reliable system of logging/snapshotting (hehe … I like to make up words
    3 points
  12. Watched another NOVA show, this one on Jupiter. They discussed how Jupiter spiralled in towards the Sun, even passing through the asteroid belt into the region of where the inner planets were beginning to develop. They attributed so much of our solar systems development on its movement. It supposedly 'cleared' most of the debris from the asteroid belt and the inner region, halting Ceres and Mars from gaining any more size. That clearing also left so little material, that we formed into what we are now, instead of super Earth like some of the exoplanets they have discovered around distant
    3 points
  13. The "Soap Bubble Nebula" is the common name for the planetary nebula PN G75.5+1.7. This nebula was only discovered by amateur astronomer Dave Jurasevich on July 6th, 2008. It was independently confirmed and reported by Keith Quattrocchi and Mel Helm on July 17th, 2008.PN G75.5+1.7 is situated in the constellation of Cygnus, very near the Crescent Nebula (NGC 6888). It is embedded in a large diffuse nebula which, in combination with its low surface magnitude, is the reason it was not discovered until recently.NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years a
    3 points
  14. The replacement mount arrived earlier today so thankfully the weather has remained dry (though cloudy) and allowed me to try the different scopes and mark the dovetail bars, counterweight bar and saddle where the resective balance points are. Tried slewing around the sky using CdC as the pointer. Photos show the mount with the 115 EDT mounted plus the SX Trius 825. At it's coest to the walls the camera has about 50mm clearance with the 115 +SX Trius. The other scopes Edge HD 8 and the little William Optics ZS 73 are no problem. So need some clear skies now please
    3 points
  15. I motorised my focuser on my lunt 60 even though there's no official focuser model. So much easier for imaging.
    3 points
  16. Right, since I couldn't find anyone who'd done this before I did, and because I'd really have liked to have it when I was doing it, here's a write-up with pictures of how a new Baader Diamond Steeltrack NT fits on a Skywatcher 200PDS, replacing the stock focuser. Spoilers: it doesn't! While all the documentation (including FLO's site) suggests it's designed to retrofit Skywatcher and similar scopes, and the install documentation suggests using existing holes to align the placement of new ones, this turns out to be wrong. The holes are wildly off and so you can't do the alignment using the
    2 points
  17. Hi guys, I have been looking forward to capturing the great red spot for so long and there it is, Jupiter and the mighty GRS . The warm evenings made it easier to start imaging straight away without having to let the 90mm Mak cool down . Turbulance was at a minimum too which helped with focus but it is still hard to reach perfect focus at such a high magnification with my little Mak. Skymax 90 + ASI120MC + 1.25x barlow Cheers
    2 points
  18. Seeing was better for Saturn later in the evening. I still had to use an IR luminance channel to pull out the detail. Jupiter is in twilight and the seeing was very unsteady. Oval BA visible on Jupiter. Peter
    2 points
  19. This is 41 mins of Ha, 37 mins of OIII and 4 mins of Red! Clouds and (low) aircraft conspired to ensure that essentially the same amount of subs were consigned to Trash! Taken with a Samyang 135mm + ASI1600MM-Pro at 139 gain, offset 56. Guiding was troublesome probably due to poor seeing. There is minimal cropping so stars at the extreme corners are not a good shape; possibly a shortcoming of the Samyang? The Ha and OIII were 120s and 180s duration and were pre-processed and combined in APP as a multi-session image. Red were just 60s. Ha, OIII and Red were processed in Pix
    2 points
  20. I watched every episode but hated his lack of interest in telescope making. <sniff> The observation side of things is just a hobby. Making telescopes is "a calling." I'll get my coat.
    2 points
  21. Yep, started watching the sky at night back in the early 70`s along with the moon apollo missions and the rest is history, started a life long interest in the heavens above, i sometimes take a break from astro but always come back to it, like now im back after taking a break, just checked the maksutov and it has faired well for its layup, just need the weather to play fair
    2 points
  22. There's the 5mm Vixen SLV which would have a narrower than 60 degree field of view, but plenty of sharpness and eye relief. It's a bit expensive for your budget, but maybe one might turn up used? There's also the older LV and NLV to watch out for as well in the classifieds.
    2 points
  23. Or if ypu really want to be different. Should be easy to shorten. https://ensoptical.co.uk/index.php?_route_=berlebach-handle&search=Handle
    2 points
  24. Always saw adverts in newspapers as a child back in the 1960's. The ads claimed to bring the moon, planets and stars into your garden. Patrick Moore always mentioned that a three inch refractor was a good telescope. The shop 'Scientific & Technical' always displayed one in their window. Because Patrick Moore said this, I eventually got that telescope.
    2 points
  25. If visiting a showroom to assess and compare binoculars it is best to do so on a dull overcast day (most optics look good in bright sunshine). Also, try limiting your selection to three or four at a time, otherwise it can be difficult to remember each one. Then, having done that, reward the showroom owners by giving them the sale. Even if their price is a little higher than online retailers (prior to FLO I spent several years working in a showroom demoing binoculars). Two more tips: The binocular you have with you is better than one left at home so do consider comfort and convenienc
    2 points
  26. Sibelius is of one of my favourite composers too.
    2 points
  27. I remember watching it in the 70s as a kid and while not maybe to understand what they were talking about I knew I loved it. Patrick was different from a normal presenter" you could tell that he knew what he was talking about and that he was passionate about his subject. The title music alone (At the Castle Gate by Sibelius) alone had me hooked. Jim
    2 points
  28. Me for sure, found his Observers Book of Astronomy back in 1969, read it 5 times. Alan
    2 points
  29. Love the little Tortoise observatory, slide off roof ?
    2 points
  30. I noticed a few fairly large gaps in the clouds on Wednesday night so I got the 10x50s out for a quick look around. Starting with Jupiter, I seem to have got into the habit of checking focus with that one but it was just in the area of a large orange street light!! Moved to Saturn, just visible past a tree but a nice pale yellow colour and slightly oval shaped. From there I got on the sunbed for a scan around Cygnus but visibility wasn't great due to high cloud.... The night before I spotted the w shape of Cassiopeia clearing the line of houses, went from Shedar to Mirach, both a lovely o
    2 points
  31. I took the plunge this week, and ordered my Esprit 150 from FLO, plus specified an Es Reid optical bench test. Although it is no longer in stock, with an expected delivery period of 6- 8 weeks, FLO said they would guarantee the current price of £3,995 provided that I paid in full in advance. I had originally intended to make the purchase in 2020 in time for the favourable opposition of Mars, but brought it forward as I think that an imminent price increase is highly likely with the recent fall in the pound in advance of a likely No Deal Brexit. To be honest I'm surprised that the price hasn't
    2 points
  32. Agree with Stu’s suggestions on this. I’ve spent a lot of time looking for solid goto alt-az mounts for TEC140 and/or C11. Somewhat different challenges by comparison with an 8 inch Newt, to be sure. I’ve been using the AZ EQ6 mostly in AZ mode for a couple of years and have nothing but positive things to say about it. It spends most of its time on a pier and I swap the scopes on and off as required. I’m always looking for a goto mount that’ll do the job with my scopes but which is significantly more portable - those available seem to fall just short on carry capacity. And generally speak
    2 points
  33. Yes shouldn’t need much movement to focus. I’ll be using the Hitec V2 DC Focus unit to control it. BTW Hitec is about to release a proper 64 bit driver which will make things easier for those using 64 bit capture software.
    2 points
  34. New scope and seemingly constant clouds since it’s been released has been the problem. Finaly got mine set up the way I wanted and ready to try some imaging and the SolarQuest mount stopped working. Returned to FLO and turned out to be just a loose plug inside. Due back this aft. There’s a reason I put that name on the scope.
    2 points
  35. Great catch Chris especially when you consider Saturn's low current height above the horizon. Never seen Enceladus so your report gives me hope with the 12" Dob.
    2 points
  36. Since sorting out my initial problems with PA, I am reasonably happy with my NEQ6, although if I were doing it now, I would probably go for the R model because of the improved PE with the belt drive. Yes, I know I could fit belt drives to my current mount ... I could also do my own plumbing, but the results would probably be less than optimal! If I had the possibility of a permanent setup, and also received a small windfall, I would probably follow Olly's advice and go for a mesu.
    2 points
  37. Hello Astronomers, As I'm doing more night shifts at work and so I'm getting the opportunity to process some of my back log of data on the laptop... Last night I processed my first framing of Gum53 in the constellation ARA, a total exposure of 1 hour and 48 minutes before I stopped the exposure and reframed to what I posted about a month ago. I wasn't going to spend too much time on this data but I didn't want to just delete it either, so even though its nothing spectacular, I'm still sharing the results of the rejected data. CS, MG
    2 points
  38. No Stu, been tried already, just one mount and Dobson is a mounted Newtonian as well you know, tsk, tsk
    2 points
  39. Ok, let's go. I receive the mount in a perfect package on Friday. On the weekend I mounted on test (on a table) for start configuring the Sitech Ascom software and test the general behaviour, SGP integration, etc.. On Saturday, it was necessary to prepare a rj10 cable to serial db9 for the new controller and then use a usb<>serial converter. In my case usually I use the PL-2303 Prolific controller available in so many converters. The USB cable will be included on next shipments. Sunday, I went to the observatory to change the mount, y
    2 points
  40. A little bit of extra history concerning "Fullerscopes" as it was originally. In the early 1970's Rob Miller was working at Fullerscopes on the mechanical side, Rob was full of advanced ideas and was keen to make telescopes to a better mechanical design and standard. Ultimately, judging that this was unlikely to happen at Fullerscopes, Rob approached David Hinds and myself to form a consortium to create a new company and "AstroSystems" was formed. Understandably, this didn't go down too well with Dudley and he even threatened to stop purchasing optics from David Hinds if he had anything to do
    2 points
  41. Outside...... Sorry, I'll get my coat! Taxi for one....!!!!
    2 points
  42. Been so long since my last imaging session. Not much going on today (what's new), nothing in white light and just a couple of small proms in Ca-K.
    2 points
  43. Came across this review. https://docs.wixstatic.com/ugd/0bb5a1_4642ec75dc4444028b7c4deefb13702e.pdf
    1 point
  44. Certainly a huge influence, but I was already hooked when he was the guest of honour at our local church fete (St. Bartholomew, Burstow, nr. Horley in Surrey) in the mid 1960's. It was the church where the first Astronomer Royal, John Flamsteed, was rector and is buried. He (Sir PM, not John Flamsteed) signed a copy of "The Sky at Night" for me...
    1 point
  45. Telescope Express does one with a 175mm hole spacing. https://www.teleskop-express.de/shop/product_info.php/language/en/info/p10280_TS-Optics-Tube-Handle-and-Carrying-Handle-for-your-Telescope.html Altair do a 180mm one. https://www.altairastro.com/altair-telescope-carry-handle.html Lots of handles though at WDS from reasonably priced to silly prices. Years ago I discovered WDS as a source for handles and posted on SGL about them. Seems to have caught on.
    1 point
  46. Thanks Folks, That's useful feedback. The accidental materialisation of another bass may set this project back a couple of months...
    1 point
  47. I use one of these dovetail counter weights on my maksutov and SCT if I'm hanging a lot of things off the back end. It's a Baader product, quite expensive, but well made.
    1 point
  48. How did I know the zooms would be a favourite option.
    1 point
  49. It did Stuart but best not get political or my fellow mods will be sorting me out. I actually would have bought it this month had it not been my son want a guitar and amp for his birthday, saw a good deal only only had my bank card on me with enough funds, after seeing Steve Hackett in Sofia and staying the weekend my wallet was running on empty. Alan
    1 point
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