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Showing content with the highest reputation on 19/06/13 in all areas

  1. 5 points
    I've also added this data to my older 8 hour DSLR colour image using PS layers with lighten mode and then HDR'd and adjusted. Orion Nebula DSLR/HA blend by meg rac, on Flickr
  2. 3 points
    This is only my second image this year owing to less than ideal weather at my site. It was done as a test to see what my set up could do with a large number of subs, I didn't have great expectations as I was only able to cool the camera to zero degrees C owing to the ambient temperatures of 20 degrees or so. Anyway enough of the excuses, here it is, hope you like it. Mike.
  3. 3 points
    If you really want to know its about £1750 in eyepieces, filters and diagonals. Its down by about £400 since I sold off all of my BGOs. Pentax is as dear as Televue. FInancial prudence is a good thing as is planning for the future BUT you have to bear in mind there may not be a future. I have personally known at least four people who all went before their time in accidents and the unforeseen. My brother, who was handsome, brilliant and planned for his future was killed on his 21st birthday by a drunk driver. Rebecca, my best friend was killed in a car accident in her early 30s, one of my aunts slipped on a step when she was in her 50s, took a bump to the head, nothing serious. She was dead 6 hours later with a blood clot to the brain and one of my clients when I was in sales slipped on a fire escape step during a fire drill and the fall broke his neck. Sarah, lovely girl I used to work with went home from work feeling a bit unwell - she suffered a fatal heartattack in her 30s. Personally I have been close to death (and that was certified by a doctor who told me later he wouldnt have bet tuppence I would survive) and as I went under, gasping to breathe with my lungs full of blood I can honestly state I never thought 'Lordy thank God I am up to date on my pension and have cash in the bank' what I did do was cry for all the times I hadnt done what I could have, should have etc because 'we need to save for the future blah blah blah'. Ever since that incident I have better balance, a close call is not a licence to say lets hock ourselves to the future but its also a timely warning that theres no point putting some stuff on the to do list for retirement - you may not be here to do it. A very good friend of mine sells life insurance for a living and they tell me that no one ever thinks they will die or at least they assume that they will live to old age and its quite scary how many suddenly keel over or get run down or trip down stairs. Her own father went out hale and hearty one morning in his 40s and was dead by lunchtime with a fatal aneurism. Thats why I spend on my hobbies - I dont really count the cash because money is just paper unless it alolows you to do the things that make you happy. The future is always uncertain without the risk of death being added in, financial crashes, war, revolution etc etc - so plan for the future but dont let it limit the present.
  4. 3 points
    This would be be far the deepest shot i've done in space so far. The lens does have a few little halo problems with some of the stars around the center but it isn't too bad. It holds focus really nice over time too so that makes life easy. My Canon 400mm f5.6 drifts in focus and needs cheacking all the time. Atik 383L+ mono, Mamiya 300mm f2.8 APO Lens @f3.2, Celestron CGE mount autoguided, Flats and bias files, 10 x 900sec + 10 x 120sec + 10 x 60sec HA, Baader 1.25in 7nm filter TS filter drawer, Stacked in DSS and processed in PixInsight and PS Full size here http://www.flickr.co...in/photostream/ Orion Nebula HA by meg rac, on Flickr
  5. 2 points
    OK, sorry for a flowery title;) The Ghost is VDB 141 - yellow nebula to the right. Two panels of unplanned mosaic. http://www.astrobin.com/full/44316/?mod=none VDB 141 close up with somewhat noisy color: http://www.astrobin.com/full/44100/?mod=none Thanks for looking! Mark
  6. 2 points
    This image shows the ring nebula together with its very faint halo as imaged by 11″ and 12″ reflectors. Credit: André van der Hoeven, Terry Hancock and Fred Herrmann Like other old red giants M57, better known as the Ring nebula, has expelled most of its material in the form of hydrogen and oxygen. At its core lies the white dwarf remnant which consists mainly of carbon. The lighter hydrogen forms the outer reddish envelope while the heavier blue-green oxygen remains about the core. The gases in the expanding shell are illuminated by the radiation of the central white dwarf who’s glow is still 200 times brighter than our Sun. Normally only M57’s main core is displayed as shown in this older Hubble image: : http://www.waid-obse...-12-HLA-839.jpg When we look closely we see that M57 consists of three structures, the inner, bright and most familiar, nebula, which is about 86″ by 62″. This is surrounded by a second fainter halo ranging until about 156″ x 136″ from the central star. Surrounding these two there is a very faint third halo of about 3,8′ diameter. The brightnesses of these three halos differ a lot, the second ring being about 5x (2 magnitudes) fainter than the central ring, and the outermost being almost 5000x fainter than the central ring (>9 magnitudes fainter…). Observation The huge difference in brightness makes it very difficult to observe the halos. Using data from a C11 and two 12″ RC telescopes about 40 hours of data was gathered using narrowband h-alpha filters (3 and 5 nm) to lift the halo out of the background noise during a period of over 2 years (2011-2013). The barred spiral galaxy IC 1296 is also visible in the upper part of the image. IC 1296 distance is estimated to be 220 million light years. This image was done as a collaboration by myself, Terry Hancock in Michigan, USA and Fred Herrmann from Alabama, USA. Setups: André: Celestron C11 with SXV-H9 Fred: Astro-tech 12″ RC with SBIG ST-8300 Terry: Astro-tech 12″ RC with QHY-9 Total exposures used: H-alpha 1800s: 40x (André), 20x (Terry), 3600s: 4x (André), 5x (Fred) RGB Red 16x 10 min, Green 12 x 10 min, Blue 11x 10 min (Terry) Luminance 8x 15 min (Terry) Total exposure time: 47.5 hours The Ring nebula Formed by a star throwing off its outer layers as it runs out of fuel, the Ring Nebula is an archetypal planetary nebula. It is both relatively close to Earth and fairly bright, and so was first recorded in the late 18th century. As is common with astronomical objects, its precise distance is not known, but it is thought to lie just over 2000 light-years from Earth. From Earth’s perspective, the nebula looks roughly elliptical. However from research it turns out that the nebula is shaped like a distorted doughnut. We are gazing almost directly down one of the poles of this structure, with a brightly coloured barrel of material stretching away from us. Although the centre of this doughnut may look empty, it is actually full of lower density material that stretches both towards and away from us, creating a shape similar to a rugby ball slotted into the doughnut’s central gap. The brightest part of this nebula is what we see as the colourful main ring. This is composed of gas thrown off by a dying star at the centre of the nebula. The diameter of the central ring is about 1 lightyear while the outer halo has a diameter of about 2.5 lightyears. This star is on its way to becoming a white dwarf — a very small, dense, and hot body that is the final evolutionary stage for a star like the Sun. The central star has a temperature of about 100.000-120.000 K and sends out most of its radiation in UV. In the central ring nicely the degrading ionization of the surrounding gas can be seen. In the centre there is mostly blue-violet light, while surrounding it there is a green ring of OIII gas which needs a lower energy to transmit its light and at the outer edge of the central ring there is the low energetic red light of H-alpha. The inner halo around M57 was only discovered in 1935 by J.C. Duncan using a 30 min image with the 2,5 m Hooker telescope. The discovery paper can be found here. The outer most halo was only discovered when first space telescopes, like the Hubble, pointed at the Ring nebula. The central ring has an estimated age of 5000-6000 years, while the outer most halo was probably released by the central star about 100.000 years ago, when it was still in its red giant phase.
  7. 2 points
    Captured on 13th with DMK21 & C9.25 hand guided Don ISS 0001 13-06-13 Frames 0346 PSE01 Reg6 01.tif
  8. 2 points
    This may be a work in progress as I may capture another pane underneath this one to capture the butterfly totally. As this wasn't what I was going for, I didn't know what I was missing and would have framed it differently if only I'd realised!! My first thoughts with the combination I am using at the moment is that it's frankly creating some great data. The 3nm Ha filter is really pulling out the detail and it's extremely noise free. It takes so little processing it's frankly amazing me. I think this one seems to be quite deep compared to others I have seen. Would welcome your thoughts on this. Do you think it's too much? Details M: HEQ5 T: Takahashi FSQ85 0.73x C: Atik 460EX mono and 3nm Ha filter 11x1800s calibrated with flats
  9. 2 points
    Hi, I managed to set up the scope a couple of nights ago and my newly aquired used Atik16lc for the first time. I took 14 subs of 300s each, but managed 6 darks as I was getting tired and sleepy, on examination about 6 of the subs were a total loss as I believe the guide scope had worked itself loose. Anyway the result is here. If I get the chance I think that I will redo the lot. Regards, A.G
  10. 2 points
    Ricardo Contreras from duoptic.com, the Sky-Watcher dealer for Argentina and Chile, has managed to make contact with the Synta development team who have the following to say about the AZ-EQ6GT and EQ8 mounts interfaces: "The motor controller on the AZ-EQ6 and the EQ8 are using 3.3V logic, and in the future, all our new motor controller will use 3.3V logic, too. But we have made sure that the communication interface is +5V tolerant and the new motor controllers will be compatible with the old SynScan hand control. The EQMOD user should make sure that their adapter can receive 3.3V serial input signal reliably." It would seem that not all EQDirects are 3.3V tollerant on their input (yet synscans must be) and this is most likely why the first attempt at direct connection to the EQ8 failed. However, some EQDirects we know work fine with the AZ-EQ6Pro (Hitech Astro and shoestring usb types for instance) and so should also work with the EQ8 - hopefully someone down under will confirm this in due course. Chris. Chris.
  11. 2 points
    Im not sure about siblings, but Ive heard an Ethos 21mm can be an excellent mother
  12. 2 points
    After slowly building up some kit i finally got the chance to take my first image a few weeks ago. Words cant describe my excitement when i first saw that litte spiral appear on the screen! Anyway here's my butchered attempt at post processing, let me know what you think. Using; canon 350d sw ed80 heq5 Total 91x60sec lights, 48 darks and 23 flats taken over a couple of ights.
  13. 2 points
    On day 21th June Mercury, Venus and Vesta will be simultaneusly in conjunction. http://www.pierpaolo...06-2013_eng.htm
  14. 2 points
    Drinking is my only way of observing doubles. LOL. Every star is a double after a few vodka and coke. *disclaimer* . Anyone under the age of 18 yrs old.............please do not try this method at home. I am a professional with yrs of experience. No,seriously dont try this at home. I do these experiments, so you dont have to.
  15. 2 points
    Just added the Pentax XF 12mm and changed the foam the medium density, i think that's about it as far as EP buying goes.....
  16. 1 point
    Taken on my IR modded 60D and 600mm prime lens and x1.4 T/C @ 19:00 with a nice blue sky
  17. 1 point
    Hey! l recently made a few videos that were inspired by Carl Sagan & thought it would be really cool if you checked it out and gave me your thoughts & insights on them. I feel like they would be a great way to teach other students about astronomy/cosmology/the Universe. I put music in the videos from Daniel Hope's Spheres album, after I found out that he was inspired by Carl Sagan too. Hope you like them & hope to hear back from you! A Tribute to Carl Sagan: - Brittany
  18. 1 point
    I firstly attacked this target with my 3nm Ha filter and I have to say that I love the detail it pulls out of the sky! So with a forecast of a number of clear nights I thought I'd try a colour version. Collected the data - always the easy part and then processing - Boy was it hard. I think I've reached a place where it's OK, but I think I need to learn that there's just too much red when I add all of the Ha to the red channel. There looks like a gradient in the top right, but from what I can see it's the Ha data, and it really jumps out on this small version. Well I like to be heavy handed I suppose, so here it is, Sh2-157 and it's friends! If there's anything you see that you don't like or you think should be done differently then I'd love to hear it. Details M: HEQ5 T: Takahashi FSQ85 0.73x C: Atik 460EX mono with 3nm Ha and Baader RGB filters 9x1800s Ha 26x240s in RGB Flats used for all filters.
  19. 1 point
    Following on from my Ha version, last night I imaged the same area in OIII and SII but using a reduced exposure of 5m instead of 15m as testing had shown that I could get more detail with the shorter subs. The 15m subs were tending to saturate. There's patches of cloud tonight so I'm having a night off and catching up on sleep but tomorrow night looks promising and I plan to retake the Ha with 5m subs. Here are the OIII and SII subs stacked in DSS and processed in PS. 25 x 5m OIII and 23 x 5m SII.
  20. 1 point
    Thought i'd do a nice easy one for a work night. This image wasn't anything without the HA blended in. RGB 15x2min subs for each colour, 12x5min HA Atik 383L+ mono camera, TS filter drawer, DIY OAG skywatcher 8in f5 reflector, Celestron CGE mount, Stacked in DSS and processed in PixInsight and PS. Full sized pic here http://www.flickr.com/photos/46302893@N02/9064776609/sizes/o/in/photostream/ NGC6302 butterfly nebula crop by Raymond Collecutt, on Flickr
  21. 1 point
    Hi all Don't know what this is called but it is truly beautiful. Sitting out with a glass of wine, chewing the cud with my wife, and saw this, astounding. An iPhone pic doesn't do it justice. Nature, huh? Good to be alive!
  22. 1 point
    managed to get a couple of images of large loops and proms on todays Sun.
  23. 1 point
    I got the scope out tonight to have a look at the moon around 9.15 so it was still light and whilst viewing the moon a swathe of dots went across my view , I thought t was midges in front of the scope , realising nothing was in front of the scope I had a look up at the moon and couldn't see anything , looked thru my scope again and could see a mass of yellow and red balloons passing the moon , these couldn't be seen in my 10x50 finder ..... Made my day. Any other things you've seen unexpectedly.
  24. 1 point
    Here is a link to a BBC news audio visual side show about the new 'Visions of the Universe' exhibition at Greenwich http://www.bbc.co.uk/news/science-environment-
  25. 1 point
    Grabbed the lights and darks on seperate nights as I needed to get up for work :-) About an hours worth of light in 2 and 3 minute subs. ED80 + EOS 450d unmodded on NEQ6 Captured using BackyardEOS Guiding with ST80 using PHD Aligned/Stacked in MaximDL Levels/Curves and a bit of high-pass in CS2 De-noise in NeatImage Cropped from wide-field for posting here. Tony
  26. 1 point
    Thats strange, I use the silicone removal tool on my Swiss army knife to take stones out of horses hooves ...... how odd !
  27. 1 point
    Great details and sharpness!
  28. 1 point
    I actually had one last go at manual alignment on some photo's I captured back in April.... This is my favourite moon mosaic 16apr13 by Wyld-Katt, on Flickr
  29. 1 point
    Andre, I think your post is a little premature. You really need to be much more patient - only 2 years worth of accumulated data! Seriously though, this is right up there with the best M57 images ever, including those taken from space. Very well done. It's great to see the barred spiral too. Brilliant work, Jack
  30. 1 point
    That is an interesting review Damien We have contacted Larry in the hope of becoming a UK retailer for his products. Steve
  31. 1 point
  32. 1 point
    Not that familiar with your particular scope, but you could make you own white light solar filter with some £20 Baader AstroSolar filter film (ND5.0 version). I've just made one, but haven't had the chance to use it yet!
  33. 1 point
    Hi Cee and welcome to SGL, before you put your hand in your pocket, I would strongly recommend that you visit the Baker Street Irregulars Astronomical Soc, who meet on a regular basis in Regents park, there you will be able to discuss you problems with some very experienced Astronomers and have a look through members scopes, this will give you some idea what to expect from amateur equipment and the problems of the London area light pollution, enjoy
  34. 1 point
    Very good shot! stacking will bring even more details.
  35. 1 point
    so your problem with that is !! :grin:
  36. 1 point
    I would have thought that scope on that mount is pushing it. be better on an az4 alternatively take the 80ed and get an az4. from relatively dark skies an 80mm scope is not such a bad old hector
  37. 1 point
    grats on the new scope hope you get out to play with it soon!
  38. 1 point
    You were pretty close Lenny, the Astronomy coffers are about spent for this year. A complicated deal went smooth as silk, and we now have a 89mm grab and go Mak of outstanding pedigree. The only issue, its in California, as I had it delivered to a good friend for safe keeping until I return. Edit:
  39. 1 point
    Smashing news Malc - now you'll be able to focus on the clouds lol Glad you're finally sorted at last.
  40. 1 point
    Hello and welcome to the lounge, i too used to play EVE.
  41. 1 point
    As a visual dude, I can definitely say my small refractor (TV76) is by far my most used telescope
  42. 1 point
    Hi and welcome from me too
  43. 1 point
    "Newbies" are so naive and innocent, it's almost cute. LOL. Like others have said..........................you will NEVER have all of your gear. Astronomy is always going to be a work in progress.
  44. 1 point
    Ok so, maybe a Monster Truck USA-style is the order of the day
  45. 1 point
    I wonder if the answer to the alt issue is just counterbalancing the primary end of the ota? Sent from my GT-I9300 using Tapatalk 2
  46. 1 point
    Captured last night in the brief break between Moon and clouds. 10 x 120s 10 x 180s ED80 + EOS450d on NEQ6 Processed using DDP in Maxim, then a bit of curves and noise reduction. Tony
  47. 1 point
    Hi everyone, thanks for all the help and advice, sorry to be late in replying to some of you, work has been manic this week! In the end I went for the 150p dobsonian, purchased from Wex photographic and have to say I am impressed at their service. Last night whilst my good lady sat watching the box I had one of my most enjoyable evenings in ages, setting up my new Dob and I have to say I am absolutely delighted with it!! Simply setting up the telescope helped me learn more about it (especially when I realised I had mounted the optic tube the wrong way round!). Unfortunately after a week of clear skies the clouds set in last night, but no matter, I enjoyed the evening anyway! I also took advice from this forum and purchased a copy of Turn Left at Orion, which has been IMMENSELY helpful whilst waiting for the scope to arrive.To SkyClad - i highly reccommend!tel I have a back garden which I intend to use, as well as doing a little bit of travelling with my new baby into the North Wales hills. I am also looking at joining my local Astronomical society. I truly feel I have found my passion / hobby / love (whatever you want to call it!) and once again, many thanks to all the members who have taken their time to post advice and assistance to the questions I have asked! FJ
  48. 1 point
    Ooooooo that sounds Kwl there was a cheap steam stationary engine on eBay not long ago but missing its boilers. Like the hot tub idea! But put it in doors lol Sent from my iPhone using Tapatalk please ignore any spelling typo thingys
  49. 1 point
    One of the most common issues with these scopes is, as Oily suggested, new owners using the 2" eyepiece adapter and the 1.25" adapter together. While this seems logical, with the Skywatcher scopes they need to be used separately, ie: when using 1.25" eyepieces use just the 1.25" adapter and when using 2" eyepieces, replace the 1.25" adapter with the 2" one. If you use the two together, the scope won't come to focus on any astronomical objects at all.
  50. 1 point
    Hi Ian, just look at Matt's image - the Cassini division really stands out there. I have't used the Mak for a while, sorry don't do much imaging with my set ups, I've used quite a few scopes over the years and the Mak is a very good Planetary/Luna scope for its size, but sorry I can't help with the imaging side of things but there's a load on here that can help you in the imaging section. I took an image with the 11" scope a while ago on Jupiter with an old Toucam with a x2 Barlow (Meade shorty) and stacked it using Registax but can't access my flikr account so I can't post it (not sure if you can paste an image on here or not). Keep at it ian, you'll get there mate - youve probably seen the Casssini division and not realised it. The larger the aperture scope you have means that you can increase the mag when the sky conditions allow - but too much mag just washes the image out and then starts to degrade it - what I do is stick with a 20mm ep when i begin a session giving a lovely bright image - as my eyes get "used" to the image I begin to pick out planetary detail, moon locations and banding, then i may increase a little for a short period to enhance contrast - but remember, doing this will darken the image, then dropping power again to see if I can tease a little more detail out - last night I was looking at Saturn and trying to tease a little more detail in the polar region - but with it being so low in the sky - not the best idea!! The more you view the more you will get used to which ep works best for you - we're all different what works for 1 may not work for another, remember though that a stacked image is an image the eye will never see - so don't expect the detail you see in the images, to be there visually. I'll see if I can find out how to post the pic so that you can see the detail. Keep at it mate and clear skies to you Paul. Edit. Here's the pic - but its been stacked and processed and visually, this amount of detail can't be seen only hints of this detail you can make out when the atmosphere steadies. Paul.
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