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Showing content with the highest reputation on 21/09/18 in all areas

  1. 5 points
    I've just returned from a week in Kranjska Gora, north west Slovenia. In keeping with my plan to incorporate at least some astro-imaging into holidays where possible, I spent an evening at a local (man-made) lake, Lake Jasna, to photograph the Milky Way over the Julian Alps. The location was fairly dark - although there are some lights around due to cafes and small hotels, plus occasional glare from passing car headlights. Also, some thin cloud started to move in from the southwest as I started imaging. Anyway I was quite pleased with the result below, a single 13-sec exposure at f/2 and ISO 3200, with a Canon EOS 7D and Samyang 24mm f/1.4. Incidentally, this holiday was a quick change of plan after my original trip was cancelled. That was to have been a group walking holiday in La Palma, where I planned to do more imaging, weather-permitting, including using a star-tracker. Unfortunately the group departure never had enough people booked. Best regards, Mike
  2. 4 points
    You don't honestly think the rest of them would believe the word of someone who had been gifted a once-in-a-lifetime trip by those round-earth puppets of the government, do you? I wouldn't be at all surprised if the flat-earther in question didn't think his own trip was a hoax... Please don't be mistaken into thinking you can talk any sort of sense to these people. Any. At all. Anyone know how they explain that Orion is 'upside down' in Southern Australia? ? Ady
  3. 2 points
    Let's see...in the north, Anaximander D and Babbage are dark, ragged potholes compared with the neatly-placed craters in Iridum's cape, seemingly still flowing off to the north and west. Promontorium Laplace, Iridum's eastern tip, is casting a cheeky shadow into the bay. The Aristarchus Plateau is all sorts of fun, starting with craters Nielsen to the north and Herodotus A to the south, each with a long ridge perfectly attached to make them look like garden snails leaving their trails as they make their way to the plateau. The lighting is just perfect for examining the plateau, showing the dramatic differences in altitude I can't really see on my digital Moon maps. The path of Schröter's Valley makes perfect sense when seen like this, while Mons Herodotus and its two neighbours are starkly lit, fronting the Agricola Mountains. Flamsteed T is clearly showing the altitude of its eastern and western rims while casting a shadow to the west; further down, at the end of the badlands along the terminator, Schickard looks like someone came along and took a bite out of the cheese.
  4. 2 points
    I won’t have beans for tea tonight then just in case!
  5. 2 points
    Cheeky [removed word]...i pitched it fine just should have re pegged it before we buggered off to Galloway observatory.?
  6. 2 points
    After our club meeting last night I got an opportunity to try out the new scope, although the cloud came back so as much time was spent talking as looking! It was my first attempt at using the synscan - a triumph of a non-intuitive interface. It reset three times before I got it aligned, and I had to settle for a 1-star align as three-star failed. I discovered that the 2"-1.25" adaptor I made is a bit too long (I copied a Skywatcher one) meaning some of my EPs wouldn't focus with a diagonal, notably my 32mm. Without it the 32mm displayed lots of nice sparkly stars in a random bit of Perseus ? M31 looked very clear with different EPs, and I could see M32 and M110. I couldn't get M13 to show stars, and M57 was very faint, I think this was partly down to thin cloud. Unfortunately that was about it due to the cloud, I didn't rally achieve more than prove the scope works and gives sharp-pin point stars! Obviously at 66mm it's more suited to AP and bright objects than faint DSOs. I'm looking forward to observing the moon through it.
  7. 2 points
    In fact, the wants list seems to grow the more you spend... it makes no sense at all but least this forum tells me I'm not alone!
  8. 2 points
    Only watched a bit, but the argument at that section was that a guy had managed to view things a long way away that should not have been visible if the earth was curved. Hmm. Some people can be hard work. I have better things to do. Thanks for the link gaj
  9. 2 points
    He could of learnt how to pitch a tent properly!
  10. 2 points
    A few weeks a go I was on a camping trip on the Norfolk coast. Those of you familiar with Kelling will know how good the skies can be on the Norfolk coast. On the first night, my family and two other families we were camping with walked down to the beach after dark. I'd brought my binoculars as there was no room for the dob in the car. As we sat on the beach, I pointed out the Milky Way, planets and some of the more obvious constellations. While we looked up a meteor streaked across the sky leaving a trail in it's wake. There was a collective gasp from our group. The children were full of questions and enjoyed looking through the binoculars. As we walked back to the tents, my daughter's friend commented "I didn't know space was so cool!!". The next morning, his mother asked if I could take him out again for some more stargazing. That night, one of the other dads and I took some of the older children into the dunes. I handed over the binoculars and talked each of them through finding Andromeda. I told them of the future collision between the Milky Way and Andromeda which filled them with questions. The double cluster was very clearly naked eye so that was the next target for them. At times we just sat back and talked about the cosmos and what may or may not be out there. I took a look at the dark nebulae which make up Barnard's E through the binoculars as we spoke. A brilliant orange/red moon rose up from the sea. After awhile, I spotted the Pleiades, which everyone enjoyed through the binoculars. Stargazing gave us all some memorable moments. Last night, my daughter's friend and his father came over for a look through my dob. On this occasion, I think the dad got the most out of it. My daughter and her friend have just started high school and were more keen on comparing notes on their respective new schools. Having said that, there were many gasps as we crept up the magnification on the Moon. Saturn sat just below Moon and so that was the next target. The "wooooow. I can see the rings" is always good to hear. Not much detail could be seen on Mars but I was able to point out one of the polar ice caps. With the sky getting darker, we moved onto some deep sky objects. The Owl cluster, NGC 457, is always a winner with children. Andromeda also impressed and I was able to point out M32 too. We go onto a bit of a roll and observed M57, Albireo, M13, the double cluster and finished on M81/M82. Each object produced it's own little set of questions from our guests. I felt quite accomplished showing them around the sky finding everything manually without needing to refer to an atlas. It's amazing how quickly you can build up knowledge of the sky. After our guests left and my household duties were taken care of, I headed outside for a little session of my own. Mars revealed a bit of surface detail with one darker region, though I saw better detail the night before. I moved onto another planet for my next observation, Neptune. I have an ambition to see Triton and spent a significant amount of time, trying to find the right magnification to reveal the tiny moon. On this occasion, it was not to be but this was my most serious attempt so far to see it. I'll give the dob a thorough collimation before my next attempt. I still very much enjoyed the pale disc of Neptune that was on display though. I added an OIII filter and went off in search of a new planetary nebulae, NGC6781 in Aquila. I believe this is also known as the Ghost of the Moon. It's quite a large planetary with lots of nebulosity on display. It didn't strike me as obviously looking like the moon. Perhaps darker skies would have revealed more detail and a greater likeness to explain the name. As the OIII filter was in, I moved up to M27. This was really stunning. The nebula presenting as a circle with a brighter "apple core" section. I recently treated myself to an ES82 30mm which now went into the focuser for a trip to Cygnus. The Crescent nebulae showed one brighter section and extended out further with averted version. The Veil was the target at the forefront of my mind when I purchased the ES82 and as I the Eastern Veil came into view, I was not disappointed. The 2 degree TFOV framed that section of the nebula perfectly and the Astronomik OIII really made it pop out. Without doubt, one of my best viewings of the Veil. Pickering's triangle was observable but not obvious unlike the Western Veil which also showed well though not quite as impressive as the Eastern section. The North American Nebulae was another treat with the ES82. It really is a big target. M33 was next to be viewed. I was absolutely thrilled when I realised that I could see NGC604 in direct vision. I managed to see it in my old 130mm scope but it was a real struggle compared to the view I now had. The nebula became even more obvious when using averted vision by focusing on the mag 11 star above it. I think this was the highlight of the session for me. There's something about seeing a nebula in another galaxy that's just awe inspiring. I added my H-Beta filter now and with the ES82 30mm back in the focuser, I went in search of my first viewing of the California nebulae. With the star Menkib in the eyepiece, I was initially disappointed... I couldn't see anything. Then slowly as I moved the scope slowly around, my eye started to pick up the nebulae. There was definitely one brighter section that was close to Menkib. That seemed to be the most obvious section to me. I picked up some more fainter nebulosity but not larger amounts. It was a good first observation. Darker skies and repeated visits will reveal more. My bed was calling but I could resist moving the scope around front to catch Comet 21/P. I made of point of looking for this every session over the summer. I have 16 recorded observations of it with the first being on the 20th July. My only disappointment has been missing it's pass through Auriga. I was shocked when SkySafari listed it as being in Orion. Autumn really is fast approaching! I found the comet without too much trouble. A hint of a tail but I've sent it much better when it was higher in the sky. I jumped over to the Pleiades, again using the ES82 30mm. The large exit pupil helped to bring out the Merope reflection nebula. It wasn't easy but I traced on edge using a couple of fainter stars as markers. I then verified what I believed I was seeing against SkySafari to confirm the observation. My observation was a match to SkySafari so success! With my final victory, I called it a night and headed in. I had to agree with my daughter's friend.... space is cool!
  11. 2 points
    Finally got all the parts done and assembled to get this in a working order. Turns out the focal length is more like 500mm. Remains to be confirmed when I get to do some astrometry. I had the objective fully AR coated too (all four surfaces) . I also took the easier route and bought a 2" star diagonal rather than making one myself. That actually extended the optical path a lot more than anticipated. But I managed to find a sweet spot in the tube length so I can easily switch between visual and imaging use. The OTA weighs just under 1400g without the finder and star diagonal. Should be ok with my star adventurer even with a CCD and accessories. Can't wait to get to test this ?
  12. 1 point
  13. 1 point
    Lovely report Mike Pretty much clouded out here tonight but I did catch some glimpses of the heavens with the TV Ranger and caught just a few of the sights you mention above on the Moon. The description of Schickard is great - it really did look as if some celestial shark had taken a mouthful from the terminator ! Schroters Valley did actually look as if it was coming "downhill" from a highland area - interesting lighting
  14. 1 point
  15. 1 point
    You screw it in to cut the thread, screw it out, clean up apply threadlocker, and screw it back in. Threadlocker takes ages to set, it's not the same as superglue.
  16. 1 point
    Well, the ep's got their first light tonight. And have to say I'm impressed. Shame the 8mm hasn't yet arrived as I could of done with it. They're all clearer than my previous cheap items so I'm happy. Spent a while mooching around clusters and the whole range was used.. Gus, just so you know I had an amazing view of m13 with the 3.2mm so it certainly has a use there. Got down to the 5 on saturn but was too low and hazy to go any higher.. ? Plus they look good in the case I inevitably had to buy..
  17. 1 point
    Just grabbed a bit over a hour but the clouds are rolling in and the wind is pushing the scope about a bit to... Have seen a couple of firsts for me tonight though so isn't all bad. ?
  18. 1 point
    Got them from these folks they do various sizes, mine are 250mm x 350mm x 830mm Actually went for a drive to collect one of them unfortunately they've got lot's of other tempting stuff there https://www.cases-and-enclosures.co.uk/ Dave Can't have too many flight cases
  19. 1 point
    Thanks for the post Geoff, your impressions are certainly very helpful. I am considering getting that exact eyepiece (spookily, Paul, for my SW 120ED also ...) I am looking for something between my 5mm (180x ) and 8.8mm(102x) and really fancy the comfort the Morpheus' are supposed to have. Wide fields are great ... when you can actually see it all (Explore Scientific 82 degree - I am talking about you ?) Gordon
  20. 1 point
    Its the same rack and pinion focuser as used on the WO Star71. Also probably the same objective lens as used on the Z73 in a different lens cell. Lots of these scopes are made of modular parts that a OEM purchases and puts their own name to. You will note that the TSFLAT72 looks remarkably similar to the WO FLAT73 There may also be different grades of lens though.
  21. 1 point
    Nightmare Paul. I hope you get a satisfactory outcome. Also didn’t know you had fallen, hope the recovery continues
  22. 1 point
    25+mph winds rules it out for a 16" dob, far to much wobble from an exposed site.
  23. 1 point
  24. 1 point
    The prices above say 'now' so I'd think they are as above?
  25. 1 point
    Not a cloud in the sky when I got up this morning so idly wondering about trying my new SolarQuest mount but by the time I was ready it clouded over and started raining, went shopping and the Sun came out, got back home and it started again al accompanied by a stiff breeze, what the forecasters call "changeable" Tonight may be clear bit's and still windy. Dave
  26. 1 point
    This reminded me of poring over Tandy catalogues when I was a kid ?
  27. 1 point
    From any sea level point on earth a 5'9" person can see 2.9 miles to the horizon, or there abouts. Seems obviously spherical to me.
  28. 1 point
    Yes ... I guess we have been in this position before ?
  29. 1 point
    Congrats + Enjoy
  30. 1 point
    The answers simple then - just hold a ballot and delete half the users at random.... ...Hey! Why does it say 'account locked'? <edit> Should add - thanks to @Grant for the work being put in to sort this.
  31. 1 point
    Good quesion, it must be steel because I think it's actually heavier than the tripod!
  32. 1 point
    (continued) So you switch. You swap. And switch again. And try different combinations. And try to see any differences there may be. Trying to split the silly vote with the VIP barlow at max power. And where this all really matters, of course, is at highest magnification. Trying to squeeze out some Martian detail. That type of thing. But when the surface of the Moon is intermittently awash with jet-propelled goo, you're never really sure. Yes, you get some good fleeting glimpses, and are happy with whatever happens to be in the diagonal at the time, but real honest comparison? (I'm building up to the clincher here - can you tell?) (continued)
  33. 1 point
    The collar you mention, does NOT need to be tightened right up, many people make this mistake, it just needs to be tight enough to take out and slack on the bearing, if you go tighter it will put too much pressure on the bearing and cause it to go stiff, which is what you are seeing...so loosen, put your ear to the mount head and rock the counter weight shaft and you will near a slight knocking as it has play in it, then tighten slowly till your hear it no more, then give it 1/8th of a turn more and that’s it, lock it down... Hope that helps, worked a treat for me..
  34. 1 point
    Great night last night Managed to get just enough for this one. I let it pass the meridian with less than an inch to spare before fouling the mount. I was going to do a meridian flip and carry on but the haze came in so I parked the scope and called it a night. I think the noise levels are acceptable and will probably shelve this data and move onto something else. I used very loose G2V exposure weights for the RGB, Exposure times were 5x600in Red 5x420 in Green 5x560 in Blue and 2x1800 in Ha Thanks for looking
  35. 1 point
    B5 was awesome. so many great line. Only one human captain has ever survived battle with a Minbari fleet. He is behind me. You are in front of me. If you value your lives, be somewhere else
  36. 1 point
    Hi all,iam up at kielder village at the moments 2nights, the forecast was for cloudy skies and rain this weekend I was gobsmacked when I come out the anglers arms,clear very dark skies awesome. Got my binoculars started having look around, found m31 looked for m51 couldn’t see it. There was so many stars it was quite hard to make out the constellations, still a nice problem to have. Can’t recommend this place enough, if anyone is thinking of coming here it’s a special dark sky site. Regards Barry
  37. 1 point
    https://www.plasticboxshop.co.uk/box-finder-t781 These people invite you to plug in your measurements to find what you're looking for. Olly
  38. 1 point
    Tell me about it - four years in, spent a packet, still have a long "wants" list! DO try and keep the Dob - it complements the frac nicely and increases your range of viewing pleasure. Negotiations - try offering your wife something for the house. Good luck! Doug.
  39. 1 point
    I was going to watch the video ... then I saw it was nearly 4 hours long ... life's too short ...
  40. 1 point
    Wow, 60 hrs, that's dedication for you. And it shows in the final image, well done Hunter! ps - With that FoV have you thought about going after Pickering's Triangle? Just a thought ?
  41. 1 point
    Passing airplane - parallel streaks give it away, wing and tail lights that usually blink - this is why there is bright part of streak - period of blink.
  42. 1 point
    Damian,if i remember we had a wee nip,or three ?, Mike
  43. 1 point
  44. 1 point
    I am always surprised to get anything from my location. i can barely see a dozen stars on a good night and when i discovered EAA i thought it might help a bit to cut through the light pollution, i never dreamed i would be taking images like this within a few months isn't technology wonderful
  45. 1 point
    Thanks SGL! I am overjoyed to have an award! And well done to all the other excellent images in the contest this month.
  46. 1 point
    The Milky Way rising in La Palma. I've only just got around to processing this from my trip back in May....so much to do so little time to do it.
  47. 1 point
    Two years I've been actively learning and pursuing my love of astronomy (well 18 months, as I spent six months in Australia). In that time I've taught myself, gleaned knowledge from our collective friend Google and practiced when the clouds let me! So much more to learn, refine, practice and enjoy. I have photographed Uranus and Venus, but only have a single photo of each. Nothing quite gets the attention and thus demonstrates evolution quite as much as Jupiter and Saturn. The first photo on both rows was produced by a Nikon D300 DSLR,, the second photo in each row was taken using the Orion Starshoot Colour Solar Imager IV, a 15 FPS peak beginners cam, that offered me my first clues as to the details you can see. The last two Saturn photos are taken on the ASI120mc camera, practice in processing and improved conditions lead to the last evolution with Saturn. The 3rd Jupiter from the left was taken with the Orion Starshoot again, having learned more about processing, and the final Jupiter was taken using the ASI120mc at the start of this week, and is a single frame from a short 22 frame animation of Jupiter and the moon Callisto. Each photo was taken through my Meade LX90 8" SCT, and each photo, at the time, delighted me. Still, I dream of taking better photos of both targets, and for the first time ever, Mars!
  48. 1 point
    I'm still dizzy after processing this one for each LRGB filter. Comet 21P meets open cluster M37 in the night/morning of 10/11 September, at perihelion. This is a combination of 60s x 30 x 4 subs, taken through the SW130PDS with an ASI1600MMC. https://www.astrobin.com/366252/ No deconvolution applied, only noise reduction. About the remaining noise?! ... yes, please. Unfortunately the light pollution at home didn't let me record more. Thanks for watching and clear skies! Alex
  49. 1 point
    Here’s a selection of star trail pictures I captured a few weeks ago. They are all between 1 and 3 hours of exposures. The first one is the entrance to dunstanburgh castle. The second is Alnmouth viaduct, known locally as the 18 arches. The third is the bathing house, located on the Howick coast and finally the cross at the top of church hill, just south of Alnmouth. All pictures where taken with a canon 550d and a sigma 10-20mm lens at 10mm. Processed with startrails.de and slightly tweaked on my phone. Thanks for looking.
  50. 0 points
    Hello all,2 months ago i had a fall from over 20ft off a ladder,spent time in hospital but recovering slowly but surely.As a result i couldnt observe at all,but eventually was able to do a little with the help of familly opening the obsy and closing it when around. This was very frustrating as i couldnt just go out when i wanted.The other week i deceided to to put the dob in the garage on a trolly so as i was able to move it a very short distance and have a look at a small portion of sky,but thats was good. I decided to, have a look at Saturn the other night and when i looked nothing was visable,first thought was i left the cap on,but no,then on looking down the ota i seen something on the primary........it was the secondary which had fell off,i couldnt believe it,the secondary is toast and there is damage on primary,as you would expect. Primary may be ok,but giving this is an O.O Ultra Grade mirror,gutted is not the word.
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