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Showing content with the highest reputation on 06/02/19 in Posts

  1. 17 points
    Imaged with my AG12 and H35. A massive task to tame Alnitak, it took over 12hours to process this one. Exposure times were 4x900s in H-alpha, 4x900s in Red, 4x820s in Blue and 4x640s in Green. Processed in Photoshop and Lightroom. Comments welcome thanks for looking
  2. 10 points
    I've never really had a proper go at the Orion nebula, but since it's above the house now at a good time in the evening I thought I'd give it ago. Still can't seem to get the colour balance right with the modded dslr and Astronomik CCD-CLS filter, it still looks a bit too red in my opinion. This was 2 hours worth of 5 minute subs at ISO800. 20 x 15 seconds for the core. Full spectrum 1000D, Quattro 8s on an EQ6. Processed in Photoshop. If anyone has any advice on removing the red cast I'd greatly appreciate it! Thanks for looking, Carl
  3. 9 points
    Hi, Again Sunshine not full but took advantage of a spot with no High clouds.
  4. 7 points
    Meet the new William Optics RedCat 51 APO ? A compact 51mm f/4.9 Petzval (4-elements) refractor that includes FPL-53 and FPL-51 glass. William Optics claim a 44mm flat-field imaging circle (so covers a full-frame sensor). We cannot confirm that yet but we think if it covers the smaller APS-C then that alone will be impressive! It also has a nice integrated field rotator that includes a slot for 48mm filters. Oh, and that red anodising! ? ETA end-Feb late-March.
  5. 7 points
    How did I get here from starting with a secondhand SW 150P? At first I wanted more aperture and greater focal length and acquired a rather nice Meade LX200 10” SCT and whilst due to various reasons it has not been used much it has shown me some astonishing views of Jupiter and the moon and has teased me with some DSO’s. It has also given my little boy a taste for the wonders of astronomy. But, a) because I’ve wanted a frac in the arsenal and more recently b) as I am really getting into the astrophotography side of things it was inevitable that I’d end up with an APO if some sort. I thought most probably an SW ED or maybe a lower end WO or Explore Scientific. Actually I really wanted a Tak but was mindful of the budget. I love quality engineering and craftsmanship and having come from a photography background understand the difference quality glass can make and a really nice Tak was where I ultimately wanted to be. Then I saw this on the RVO website and realised it was something special, promptly decided you only live once and placed the order yesterday. I just had to have it. Usual prompt service from Ian & Adam and here she is. Even after reading all the reviews and looking at the many photos I don’t think anything can prepare you for the sheer mass of the thing. With the due shield retracted and the extension tube detached it’s barely 16” long but then you try and lift it out of the case and you realise just what a piece of engineering it is. I can quite believe it tips the scales at a shade over 10kg. And the CNC’d focuser. An absolute work of art - pure function AND form. Delicate, smooth, precise yet along with the cockroaches will be one of the few things to survive a nuclear war. Just such a massively over-engineered device, almost unnecessarily so, but then that’s what this scope is all about. If the HST had a manual focuser this would be it! As for the tube. I’ve read it’s some exotic paper impregnated with a resin to form a plastic type material - it certainly feels like nothing I’ve handled before. Shiny, flawlessly smooth but also quite warm to touch. Apparently the material prevents the optics from ever dewing up - I’ll certainly put that to the test as soon as I can. As for the optics. They need no introduction - just a sublime chunk of glass. The coating such that at the right angle the objective becomes invisible. Clearly crafted rather than merely manufactured. The rest of the scope - the milled knobs, the tube rings, the finderscope holder etc all compliment and add to the function and aesthetics. The impression of a scope designed to be the very best it can be and to hell with the cost. I doubt with the amount of machining the metalwork must have taken on these early scopes they could ever turn a profit. Should I have bought it? Probably not. Are there better value scopes out there? I’m sure there are. But you only live once and this is a thing of beauty. I almost feel a weight of responsibility caring for such an instrument and I cannot wait for first light. I’ll be sure to post a report accordingly.
  6. 7 points
    A 13 hour LRGB image showing a collection of distant galaxies which was taken with my Esprit 150. The most notable objects are NGC2276 showing dust lane structure and relatively bright H regions together with the elliptical galaxy NGC2300, with its extensive gaseous envelope. Estimates place both galaxies at around 120 million light years away. I've also attached a Pixinsight annotated image which shows their relative positions plus a few (presumably) even more distant fuzzies. Alan LIGHTS: L:28, R:16, G:15, B:18 x 600s; DARKS:30, BIAS:100, FLATS:40 all at -20C.
  7. 6 points
    Still getting to grips with my new set up and a few tedious gremlins of my own making made gathering the data for this image a bit of a trial over several nights. As always, could have done with more data but I've lost the will to live and have now gone into hibernation mode! Camera: ASI 1600 pro with a Canon 200mm lens at F2.8 Baader filters - Ha 30x300secs gain 150, R and G each 100x30 secs gain 21, B 100x30 secs gain 150 (total cock up on my part, should have been 21 and caused intense misery during calibration and processing but I'm slowly getting over it) Captured with SGP, calibrated and combined in Maxim and processed in PS The image includes the Flaming Star Nebula IC405, The Tadpole Nebula IC 410, IC 417, SH2 234 and 237 along with open clusters M36, M38 and NGC 1907
  8. 6 points
    Imaged on 04-02-19 More time required on this one but this is it for now I processed another version where the gas was more blue but I think this image shows more of the Nebula. Luminance of 13 x 600 un binned RGB of 5 x 300 each binned 2 x 2 WO 90 scope at F 5.5 QHY9m camera Bob
  9. 6 points
    Hi Apologies for 'easy' targets... but as a newcomer... I've got a star adventurer and a modded canon 450D. No scope or guiding so I tried 1600 ISO, and my sigma 150-600 at 600mm and fully open. Best I could manage was 30/40 seconds without severe errors. About thirty 'lights'. Took flats, bias, and darks. Computer will not run all of trial Pixinsight features so a 'stab in the dark' at editing. Am aiming for a better machine. Constructive guidance welcomed. My question is..... to improve my imaging kit should I either a) get a mount for the camera/lens such as a HEQ5? or b) get a scope such as a small Zenithstar for the star adventurer? I cannot afford both a mount and a telescope at this point in time. (I'm interested in imaging rather than observing) Stephen
  10. 5 points
    I had a couple of clear nights on 30 and 31 January and captured 10 x 240s of RGB on both nights making four hours data in total. Processed in Pixinsight with a superbios and 20 darks (240s) plus 20 flats per filter all taken at -10c. I followed Kayron Mercieca's calibration steps in https://www.lightvortexastronomy.com/tutorials.html and used Masked Stretch and Colour Calibration to finish. Any comments and processing advice is welcome as this is my second image in Pixinsight. I know just enough to know that I don't know anywhere near enough!
  11. 5 points
    The barelly photograohed Lambda Orionis Nebula. Easily foundable, star Meissa is in the middle of it just above Orion's belt. I am proud, I pulled this from only 6 images, 300sec each! Canon 1300Da + Canon EF 50mm f1.8 @f4 6x5min at ISO1600 Stacked in Photoshop, edited in PixInsight. Gonna add more to it as soon as possible! Comments are welcome!
  12. 5 points
    As the title says: Oi, this is not a foot warmer! A cheeky bird seems to think otherwise. Thankfully it didn't relax completely, if you know what I mean, and leave a small deposit slap bang in the middle of my Oculus dome!! I don't think that it is a widefield view of Corvus!
  13. 4 points
    I haven't sketched from binoculars yet but the Beehive was so obvious last night to the naked eye and very pleasing with the 10x50s. I couldn't begin to sketch in every star visible but it all seemed to work out well... Mark
  14. 4 points
    Hello This is my version of the Rosetta Nebula. This image has 11.5 hours worth of Data over the last month or so between all rain clouds and the annoying new neighbours xmas present. The security light! Telescope - 102mm APO ES refractor on a AVX mount Camera- Canon 70d unmoded iso800 with a IDAS-D2 filter. Duration 11.5 hours - 300s lights., Darks, flats and bias frames also taken Guided with PHD2 and processed in PS Of course improvement advice much appreciated or if you would like to have ago 11.55hrs.tif Cheers thanks for looking Dean
  15. 4 points
  16. 4 points
    A big box weighing very little arrived from FLO today, it was a little the worse for wear but I wasn't too concerned as I knew the contents were virtually unbreakable..... We live out in the sticks a bit here with dirt roads, so dust is a very big problem in the summer months (and moths too!). My open collapsible Dob is a sitting duck for contamination from dust not to mention swarms of Australias finest bugs, so it seemed appropriate to order some protection in the form of an Astrozap shroud..... Needless to say it's now pouring with rain so the dust will be settled, but the bugs will still be out there!
  17. 3 points
    After purchasing a modified 500d on here I took it out over the last week or so and really happy with the results so far :). A CCD-CLS Filter has since turned up to help with the Aberdeen/Cruden Bay light pollution and of course now cloudy but keen to get back out and start properly focussing on some targets and figure out the intricacies of stacking. All of the pictures below are single images with various settings Canon 500d modified Samyang 14mm f2.8m (15-20seconds, 800iso-1600iso) Canon 50mm f1.8 (30seconds, 800iso) iOptron SkyTracker Pro Comments and criticism are welcome as it's the best way to learn!
  18. 3 points
    Just seen this on Spaceweather.com - best aurora video I've seen. Watch in 4K if you can!
  19. 3 points
    There's a lot of debate over the value and performance of high end refractors, and how they compare. Somehow though, it seems the SW ED's may be getting overlooked when high end refractors are being considered, viewed by some perhaps as being a poor man's apo. But is that true? My first experience with an apochromatic refractor was on the 3rd January 2003. Some kind gentleman had donated a 102mm Vixen fluorite refractor, complete with GP mount and pier, 60mm guide scope, motor drives and eyepieces to my local astro club. It was beautiful! When i arrived at the observatory, everyone excitedly showed me this beautiful scope set up on the field along side a 100mm Tal refractor and a 150mm Helios refractor. The trio looked amazing alongside eachother! Saturn was low in the east and looked virtually identical in all three scopes. I openly expressed my confidence that when Saturn rises to 30° the 150mm will give the more detailed view due to its aperture and resolution, and that no matter how good the 102 fluorite was, it would be left standing. Lesson 1) The 102mm fluorite kicked the living daylights out of not only the 100mm Tal and the 150mm Helios, but also every other scope on the field no matter what the aperture or design. Saturn through the Vixen looked as though it was being viewed through a space ship window, and the rings were so detailed they gave the impression of having grooves like those on a vinyl record. That night apertures King had just been dethroned! I drove home from the observatory in the early hours of the following morning, wondering how on earth I'm going to find a spare £2,200.00 to buy myself one of these amazing scopes? Lesson 2) Cutting a long story short, I never did get my hands on a Vixen fluorite, as the then sole UK importer was a pretty useless character. Instead, three months after my first encounter with the Vixen FL102 I ended up buying a Takahashi FS128 for considerably more than the cost of the Vixen. It was not only a beautiful scope to look at and to look through, it was big physically, which meant I needed a bigger mount and more expense. Then my friend Gain introduced me to Naglers. More expense! Buying a top end scope is only the beginning of the poverty spiral! Lesson 3) Years went by and the FS128 never failed to impress. Was it worth the financial pain? For me it was, as I loved every minute under the stars with that scope Then came a proposition! I was offered a Tak FS152 in exchange for my FS128 + £1000. I thought this would be a once in a lifetime chance to own a £10,000.00 Tak, which is what it would have cost had I bought it brand new. I couldn't turn the opportunity down and I became the owner of a superlative 152mm Tak fluorite. Then came further expense, as the Losmandy GM8 that carried my FS128 was woefully inadequate when it came to carrying my FS152. A new mount was needed and I bought a Losmandy G11. ( I must have the most understanding wife on the planet)! Initially I was thrilled with my acquisition, but very soon I noticed my observing had taken a hit. I was looking for excuses not to observe as setting this heavy beast up, and more importantly dismantling everything and carrying it all back in when tired and frozen, was taking the joy out of the hobby. I missed my FS128, but it had now been sold on to someone in Germany. One night while setting the 152 up on its mount, my back gave way and I slid down the pier in agony while desperately holding on to £10,000 worth of tube assembly. At least thats what it would have cost had it needed to be replaced. It was an expensive lesson and i soon came to realise that bigger isnt always better! Lesson 4) Don't believe everything you read, especially if its a top end scope manufacturer trying to sell his product. "It Is What You Want It To Be"! Or at least that is what TeleVue wanted me to believe about their NP101. I read and re-read that advert in Sky & Telescope until I'd convinced myself a small, easy to handle apo was just what I needed. I sold the FS152 and the Losmandy G11 in very short time and bought everything TeleVue. The 101 when it arrived was a lovely looking scope, and the armoury of Naglers, powermates and Ethos - Ethos's- Ethi, or whatever, were mouth watering. The scopes rich field and deep sky prowess was undeniable and to date I feel the 101 is the best rich field refractor I've ever used. But it made me work hard on the planet's, and when on one night my friends F6.5 Vixen ED gave a far better defined view of Saturn, I knew the NP101's days were numbered, after all the NP101 cost nearly as much as my superlative FS128 and was thrashed by an old Vixen ED costing a fraction of the price. Lesson 5) ENTER THE DRAGON! A year after buying the NP101 I sold it on, but things were brought to a head after a side by side showdown with a cheaper Chinese ED. Cheaper in cost only I hasten to add! My friend Paul had managed to get hold of an ex display gold and cream SW 120 ED. One look at the moon through both scopes was enough. Had I not known in advance that it was a SW ED I was looking through, I swear I would have thought it was a Tak! There was essentially zero CA, the moon was almost ice white which was something I loved about the fluorite view through the Tak's and Vixens. By comparison the NP101 gave a rather nicotine view of the moon and it had to go. The SW ED was really something special, and as Tak and Vixen had stopped producing fluorite refractors at this time, I knew I couldn't live without a SW ED. The 101 was sold within 48hrs and in only a couple of days I had my first SW ED120. The only regret I have is that I've wasted thousands of pounds to get to this point. Ive owned five SW ED's - one DS Pro 120 ED, two Equinox 120 ED's, one DS Pro 100 ED and a fab little Equinox 80 ED. All were stunningly good scopes! Lesson 6) Over the years I learned that the more portable and user friendly a scope is the more I'll observe with it. Oddly, I found myself using the Equinox 80 ED more and more as time went by, as I was able to carry it out with one hand, it cooled fast and with a binoviewer it gave superb views of the Moon and Jupiter. I'd go out for just a five minute session before bed and often find myself still sat there at the eyepiece of the 80mm an hour later. I really began to appreciate the portability aspect more and more. When my friend Paul told me Takahashi had begun making Fluorite refractors again I was intrigued. Then one night he phoned me to say he'd ordered one, so I thought if he's having one then so am I. So I put everything I had up for sale and the money came rolling in. Then I got a call from Paul, asking what on earth I was selling all my gear for? I told him that if he's having a Tak then I'm having a Tak! The phone went silent for a while - then he said "I was only kidding just to see how you'd react"! Then he cracked up laughing. What a Git! Still, the 100mm F7.4 Tak has turned out to be virtually everything I loved about all the various refractors I've owned all in one package, so nothing was lost in the venture. Lesson 7) Don't trust paulastro!!
  20. 3 points
    Basic two types of nebulosity out there: 1. reflection 2. emission They differ in the way light that we see / record is generated. With reflection nebulae it is light from nearby stars that gets reflected from dust/gas in nebula - hence name reflection. It's a bit like shining torch at smoke / fog during the night - you will see smoke / fog because it has light shone on it. Because star light is broad band - so is the reflection of it from the gas and dust. Emission nebula don't have separate light source to power their glow. It's the gasses that form the nebula that get excited (temperature / magnetic fields / gravity / whatever) - that makes them shine. They shine because electrons in excited atoms jump back into lower energy state and photon is emitted. Different atoms have different energy states and energy difference between two states is always the same - this is why we talk about H alpha and beta - meaning Hydrogen atom, jump from second orbital to first one and from third to first. Similarly other elements emit their light - OIII, SII and so on ... These all have well defined frequency of light and this is why we can use narrow band imaging - filters designed for particular wavelength. This process is very similar to neon lights that we regularly use.
  21. 3 points
    Back into the past... Because of the lack of good weather and new data it's sometimes nice to look a bit back. When browsing through my old images I thought: "What is the image in the last few years that I liked the most?" I think it was this one. It shows Barnard 344 in the constellation of Cygnus, near Sadr. This one even became an Apod in april 2015: https://apod.nasa.gov/apod/ap150422.html Especially the colours in the image and the nice contrast between the nebulae and the area without gas/dust is what I liked. I really hope that when weather permits I can take some day an image like this again, because the sky is so beautiful. Clear skies to you all!
  22. 3 points
    I have astigmatism and also need reading glasses but find I can observe best without glasses. Like most people, the specs are on to read charts, off to observe, on to sketch or check charts, off to observe.... I've tried spec necklaces or perching them on my head but nothing seems to work. Last night after an hour of juggling while star hopping, I tried the Blue Peter option - I removed one lens from an old pair of glasses. It worked! I can observe and consult charts or sketch without juggling the specs! John
  23. 3 points
  24. 3 points
    I have done that ?. I owned a DC, DL und the TSA and sold the TSA to thin the heard.
  25. 3 points
    Yeah, but they're not big enough to go over the dob. James
  26. 3 points
    Another satisfied 13mm/T6 owner. I finally got around to using mine a few weeks ago. My 13mm/T6 on the right... and with my TeleVue 13mm Plossl (left) & 13mm/T1 (middle).
  27. 3 points
    i made this filter for my Evostar 120, made with plywood and Baader solar film nd50. Scott
  28. 3 points
    It is a tough call to sell a TSA 102 in pursuit of a lighter FC-100. I can understand the desire for a lighter option. I have owned a TSA102 since 2008 and it has never failed to impress me when the conditions are right. I have no doubt the FC-100 would also be a very satisfying scope in use. I use the TSA on a Vixen GPD2 mount. I also have an FC-76DC since 2014 which goes with a Vixen Porta mount. That is my lightweight grab and go option. If I didn't already have the TSA102 then the FC-100 would be my choice. In the meantime I wait patiently for Takahashi to announce a new FC-125!
  29. 3 points
    A south facing window is a heat magnet in sunshine and completely intolerable to sit there. That's why people detest being in greenhouses and conservatories without serious shade. Or any work or office space anywhere near a sunny window. You can't hang a monitor from a window. Nor fit shelves or working surfaces there. The window is a waste of vital space and a security risk. IMHO. Once the sun gets though the glass it is far too late. The heat is in and cannot be undone. The sun is blindingly bright and reflects off everything. It spoils books and charts and equipment where the sun can reach. Sunshine makes using any computer screen a nightmare even if you deliberately wear black clothing. Site your desk so you can see what needs to be seen without turning. Never with your back to the entrance nor the telescope. Make sure you aren't blocked from accessing the entire space in the pitch dark. Power cut? You need a torch which is returned to its allotted space every single time it gets used. An observatory and warm[er] room is not a 'power 'office to impress the underlings. It's an active workshop. Which means you need desk space/working surface for far more than just the computer/keyboard/laptop or screen. It's a warm[er] room where you'll want sit down in good light to work on or handle smaller equipment or just keep it from dewing. I thought it would be so simple to furnish an observatory. Until I actually tried it.
  30. 3 points
  31. 3 points
    Another eyepiece every scope should own, this one thanks to Steve @Saganite - the most decent of gentlemen.
  32. 2 points
    C11 with focal reducer (1760mm), ASI183mm Pro. Astrodon filters. Mesu 200. Pixinsight. 80 x 60s L 30 x 60s RGB 2.8 Hours data. Thanks for looking. Dave.
  33. 2 points
    This was the moon captured with my new Celestron SLT 130, just before sunset. Used a Samsung Galaxy S6 with an eyepiece adapter. No post processing.
  34. 2 points
    Astrodons sure are pricey but as they say in certain auto racing circles, “speed costs money, how fast do you want to go?”
  35. 2 points
    You're right Louis! The UK gets all the moisture from the warm air crossing the Atlantic and gets battered by the elements from every side. Then there's the Jet Stream that weaves about over our skies; plus all the man made vapour trails resulting from all those British astronomers flying off to the Texas Star Party and the like. And they fly right over my house! That's almost certainly why refractors are so effective here and seem to cut through the seeing. I did once see an old 1980's Celestron SCT give the most stunning view of Jupiter I've ever seen through a scope, but it only did it once. A scope like the SW 120ED on the other hand will give great views on nearly every steady night, so in that sense its the better choice, as so amazingly sharp and contrasty, offering great definition. When the Icelandic volcanic eruption occurred a few years ago and the planes were grounded, the planetary views of Jupiter improved massively. At the time I was using a Skywatcher Equinox 120ED. It was a truly superb performer, and over the six year period I owned it, it outperformed pretty much everything it came up against in everything but light grasp. The only real competition came from other high end apo refractors. There is one other observation of interest that kind of throws the the UK seeing hypotheses into question though. Although the many large scopes at my local astro club were nearly all bested by the ED120 for sharpness, contrast and definition, (not just my opinion!), there were a couple of exceptions. The Vixen 102mm fluorite always stood out as something special, but more interestingly, the 8.5" achromat appeared to be never affected by the seeing, while 8" scopes of any other design were. If it were purely down to the seeing, then surely the 8.5" refractor should have suffered in the same manner the other 8" scopes appeared to do?
  36. 2 points
    Very nice image, and great SN catch. One general pointer re processing. If you use masked stretch, make it a habit to use the hsv repair script first. After dbe and colour calibration overexposed stars can have a miscoloured core. This can result in purple or pink stars after stretching. The hsv repair script corrects the core of stars and changes it to the colour of their halo. Here's a reference http://pixinsight.com.ar/en/info/processing-examples/28/maskedstretch-stars-sores.html
  37. 2 points
    Monday night effort M97 the Olw Nebula. Hypercam 183c 16 240sec lights 6 darks
  38. 2 points
    Popped up to Towton Moor on Monday eve with the gear... managed to get a shot of the obligatory nebula-du-jour. Nowhere near the clarity, sharpness & composition of Ryan’s previous masterpiece... but good enough for me!
  39. 2 points
    Good man, so you've put it to a good use then. Here's my shamelessly wearing it every day at work
  40. 2 points
    Perhaps this has something to do with UK skies? In Texas, 12" and up Dobs equipped with premium hand figured mirrors from Zambuto, Swayze, etc. have always blown away any 4" to 6" APO refractor views of planets at star parties I've attended. This included Taks, TECs, APs, etc. There is simply no substitute for aperture when it comes to pulling fine details out of planetary views under steady skies. If you're going to spend $10k+ on a scope and mount, I'd probably go the large premium Dob route at least here in Texas. That, and we have the large trucks and wide roads to haul them around.
  41. 2 points
    For revealing star colour soft focus is often recommended and certainly works. I wouldn't use it on nebulosity though. I get the best contrast and structure from careful focus. Olly
  42. 2 points
    I captured this stunning galaxy in Ursa Major with my new 200mm f/8 Ritchey-Chretien. Apart from the way oversaturated stars appear, I'm very pleased with the performance of this scope. It's nice to be able to use a relatively long focal length (1600mm) to capture these smaller objects, without requiring reducers or correctors. Its apparent size is 8.1' x 3.5', and according to Wiki it is an inclined unbarred spiral galaxy exhibiting a prominent inner ring structure, discovered on 9 March 1788 by William Herschel. Initially thought to be about 30 million light years distant, a 2001 Hubble Space Telescope survey of the galaxy's Cepheid variables determined that it was approximately 14.1 megaparsecs or 46 million light years distant. Atik428ex. 6h 30m of 300s exposures Luminance. 15 x 60s RGB each channel, 2x binned. Field of view 13.1 x 18.2 arcmin. Off-axis quiding with a QHY-5ii mono.
  43. 2 points
    Been a bit bummed for a while as my APP integration were creating very odd looking (so I thought) LP gradients. Then I realize it looks a lot like amp glow. So a quick search on their forum shows someone already noticed and reported the problem, but it was never fixed due to the Mabula being away at the time so I bumped the thread. A few hours later got the 1.71 beta with the fix in. Finally my M45 data looks decent! About 5.7 hours using a SW Pro ED 80 on my ieq45 pro with a QHY163C camera.
  44. 2 points
  45. 2 points
    Apologies, Kev. I got all wound up at the mere idea of a south facing window. I've been tilting [at] them for decades at home and work! Rocinante is sick of them too! A louver of horizontal slats would still let you see the scope. No need for the usual sloping slats because the obs. walls will give shade with a low sun.
  46. 2 points
    Woke up 30mins early to find the wind and rain gone and clear skies so used the time wisely The Milkyway is in a lovely orientation at that time in the morning over the sea
  47. 2 points
    Ongoing speculation in the scientific community remains just like here on SGL as to the nature of this interstellar trespasser, now it's proclaimed to possibly be a comets corpse. Certainly the most interesting object we haven't seen but discovered to date... https://www.space.com/43229-oumuamua-monstrous-fluffy-comet-dust.html
  48. 2 points
    David, I had both scopes, TSA102 and FC-100DF. The FC-100DF is portable and grab&go compared to the TSA102. The FC-100DF cools faster as well. The TSA is color free as it gets. Though I had no issues with the FC-100DF, as it was color free to my eyes as well. Between these two scopes for visual only, I would always go with the FC-100DF. As I like the portability and fast cooldown of the FC-100DF. To give you a size difference between the FC-100DF and the TSA-102, see the attached picture. This is the FC-100DF side by side with the FS-102NSV. FS-102NSV is the same size and dimension as the TSA-102.
  49. 2 points
    Sorry! The praesepe .. corrected. Thank you
  50. 2 points
    Not the postman, but yesterday I met a friend and collected two new (and hopefully final for a while) additions to my astro arsenal. 1) a new to me Giro Ercole Mini and counterweight bar. 2) an ED120 of the gold coloured vintage complete with a very nice red Moonlite dual speed Crayford. Unusually the weather gods smiled on me and we had a cold but clear night down here in Dorset and I got to use them both. How often does that happen? The mini ercole was fantastic to use with much more progressive tension on the axes unlike the Giro GR2 mini which I find a very much on or off affair. Now just need to decide on the fate of the Starwave f/11 which hasn't seen much use.
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