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Showing content with the highest reputation on 20/10/18 in all areas

  1. 12 points
    After a long wait for Gemini to rise, I managed to spot my 20th comet tonight. Comet 38P/Stephan-Oterma is no easy target when low in the sky, but I managed with my Helios LightQuest 16x80 binoculars after a number of abortive attempts. It appeared as a faint, fairly compact, hazy ball below Alhena (gamma Geminorum). Before catching it, I had amused myself with the usual targets of the Pleiades, M36, M37, and M38 is Auriga, M15 in Pegasus, and of course several galaxies like M81 and M82, and M31 and M33. I hope to get a better view of the comet when it is higher, but not tonight, as I have to drive part of Robert's football team to their cup match tomorrow morning. Still, I am well pleased spotting comet number twenty.
  2. 9 points
    composite image of Cassiopeia from the back garden and part of the house . 1 image of the house. 67 images at 3 minutes each at iso 6400 eos 200D with 50mm lens at f7.1 on the SW star adventurer. thanks for looking and all cc welcome
  3. 8 points
    First time out since February. Nice clear sky to start with, Moon out of course but 5nm Ha does'nt care. ? Thought I would blow the dust out with something easyish, good ol Heart and Soul. 13x600secs, Atik 383L, Samyang 135mm f/2, Astrodon 5nm Ha filter. Processing with PI and PS CC all mucked up by me. ?
  4. 6 points
    Imaged over two nights 14/17-10-18 Luminance of 17 x 600 un binned RGB of 7 x 300 each binned 2 x 2 WO 90 scope QHY9 m camera Bob
  5. 6 points
    Hi folks, A nice clear week over here in the Netherlands. Tried to image ic5070 with my asi1600pro. Because of guiding issues i was limited to 3 minute subs. Post processed in DSS and PS. Ha 72*180s Sii / oiii each about 40*180s. https://www.astrobin.com/372645/B/ Thanks for watching, feedback is welcome! Cheers.
  6. 6 points
    My take on this galaxy. One of my first imaging sessions this season, and from my new home under considerably darker skies than before (Mag 20.6 vs 18.5). Gear: SW 150PDS on a SW AZ EQ6 and ASI174MM cooled cmos at 2 e/ADU. Ha: 14 x 5 minutes R: 24 x 3 minutes G: 20 x 3 minutes B: 19 x 3 minutes (Total: 4 hours and 19 minutes) Capture: Ekos/Kstars Processing: PixInsight I had a planned sequence in Ekos for exactly one hour each of Ha, R, G and B. But just before the last blue sub, Ekos decided it was time for an automated meridian flip, which it did without hickup. I decided to let it run for half an hour more, collecting Ha and R. This image is about the full fov of my camera, only the edges have been cleaned up. (click on the image to enlarge)
  7. 6 points
    This time with my William Optics GTF81 and Nikon D750, I wanted to see how far out I could go.. 4 hours 20 mins by which point the battery was flat.. 30x120s 40x300s ISO 1600.. Pixinsight and Photoshop.. should have dithered as there's FPN thanks for looking Dave
  8. 6 points
    The first time I use data from more than 1 night - and even from more than 1 location. In total: 80x5 minutes, adding up to 6.7 hours of data. Hope you enjoy it; any comments are welcome, as I am still a novice in post-processing. Used setup: good old NEQ-6 Pro; 127mm apo with 3" E.S Flattener, Canon 600 D camera, guiding: Lacerta MGEN.
  9. 5 points
    Ngc 205 (M110) hardly ever gets centre stage, even though this region near the Andromeda galaxy has some interesting features. There is a weak connecting "bridge" between this satellite galaxy and its big neighbour. The side pointing away from M31 has a slightly warped halo. The galaxy also has very weak dark structures near its core, as well as a few star forming regions. Last year I imaged this galaxy from the suburbs. Now that I've moved to a darker location, I decided to redo this target. 2017 version: 2018 version: (click on the image to enlarge) SW 150PDS on AZ EQ6, ASI174MM cooled cmos at -15 C, gain 130 (2 e/adu) RGB: 10 x 180 s each L: 32 x 120 s Processed in pixinsight ----------------------------------------------------------------------------------------- Added data that was captured the night after: L: +36 x 120 s RGB: +10 x 180 s each The framing wasn't the same, and rather than losing the edges, I opted for a "semi-mosaic", giving a slightly larger field of view.
  10. 5 points
    What a gorgeous day! Was stuck inside for the early part of the morning, putting up shelves and the like, but it was definitely shorts and t-shirt weather by the time I went out to put away a delivery of chicken food and then start work on the observatory. The insects were clearly making the most of things too. I think I saw more wasps today than I have done all year, and when l looked back towards the house when the Sun was over the roof at around 3pm I could see huge clouds of small insects caught in the sunlight. First job today was to slip some DPC material under the roof rails and then start fixing the rails down. I used some zinc-coated "self-tapping" hex head coach screws for the rails, which meant I could put them in using the drill and a socket. With the first rail on each wall fully fixed down and the second loosely fixed I could work out how much more I needed to allow the roof to open fully -- just another 20 to 30 cm as it turns out, so I'll cut a couple of pieces long enough to have a set of fixing holes at each end. I've left the second rails loosely fixed for the time being as I'll need to lift them when the EPDM goes on the warm room roof. Although the OSB I ordered wasn't delivered this week I found two and a half sheets plus some smaller offcuts in one of the sheds, probably left over from building the beer shack -- nowhere near enough to do the rolling roof, but plenty to cover the warm room. So for the rest of the afternoon that was what I did. One sheet did most of the job and then the cutting took more time than anything else. I still have a little more woodwork to do before I put the EPDM on, but I'm hoping I can get all of that done tomorrow. It feels so good to be actually putting roofing on at long last :) James
  11. 4 points
    Some old nag photobombed it 10 x 300 binned x2 each S2 Ha O3
  12. 4 points
    I might run a spare 240V line down there .....chew on that!
  13. 3 points
    Hello all! The weekend that just passed we went to my girlfriend's parents. The skies in that rural area are pretty much as good as you can get. I don't have an SQM reader, but Clear Outside estimates 21.91. I didn't take the EQ6R with me, I still consider it a big lump of iron, and the AZ-EQ5 should be on its way back this week as a Stellar mount. So I used the EQ5 which was left in the car for a while. While the tracking/guiding on the RA axis is quite good, the DEC control jumps a lot after multiple consecutive guiding commands, I blame the "enhanced" handset. So with all the drawbacks, I tried to do align the mount as good as I could and I put the 72ED with the ASI1600 on it and a finder-guider. Perhaps also focus could have been done a bit better, FWHM in the subs was 3.x. Below is a quick process from last night, no deconvolution yet and a purple area at the bottom that I have to fix. 58x120s lum, 30x120s each RGB. Last version:
  14. 3 points
    Last weekend I had my first session with my new Esprit 100 and my new ASI1600MM pro. I used a Baader 7nm Ha filter and aimed at Sh2-115 and got the small Sh2-116 as a bonus. Less of a bonus was that I hade oval stars in the corners. I then remeber that FLO had told me that the flattener to chip distance in the Esprit 150 manual was slightly wrong. When I now checked the distance given for the Esprit 100 flattener on the FLO site (55 mm) I realize that this is quite a bit from the 63 mm stated in the Esprit 100 manual from SW (which I should not have trusted). So mystery probably solved and easily fixed by removing 8 mm of T2 extenders. What I cannot understand is why SW cannot get these distances right in their manuals (no new priniting needed as they are available as pdf on their site). So, I had to crop quite a bit in the corners and still fix the worst stars in PS. Also the seeing was not the best. This is 53 x 5 min lights, so a bit over 4 hours. Stacked in PI (and 35 x 5 min darks subtracted as Master dark) and processed in PS. C & S most welcome!
  15. 3 points
    I captured this nice trio of Asteroids last night, close together in Pisces. Asteroids (493) Griseldis (mag. 14.2) and 2119 Schwall (mag. 16) were just 45" apart at 17:27. Here they are a couple of hours after their closest approach, along with another one (8178) 1992 DQ10 (mag 16.8). Despite their visual proximity, Griseldis was 1.67 au distant, whilst Schwall was 1.21 and DQ10 was 1.09. Here's an animation of all three over a period of about two hours. 2 minute exposures, Atix428ex, 250mm f/4.8 Newtonian. I ran the images through an photometric program called Muniwin to see if they had a measurable magnitude range to indicate their rotation. Griseldis and DQ10 didn't show a significant range, but Schwall showed a distinct curve with a range of about 0.2 magnitudes over a period of 2 hours, suggesting a rotation period of about 4 hours. Here's a different animation, this time centred on Griseldis, so that it appears stationary. It hurts my eyes a bit! But it nicely shows the relative dynamics of the three objects.
  16. 3 points
    Hi All, So some of you know I am new here and I am also moving my beloved equipment to Spain to be hosted with (I hope) Ian King. Today we (you are never alone in astronomy) started the move by removing the equipment from it's home observatory in the UK. The dome was built in 2004 by myself, my good friend Bob, a chap called Brendan and some other helpers. The original Paramount ME I went in in 2008 replaced 5 years ago with the Paramount ME II (and an EQ6 in between). This was how we started today. and then my friends turned up and we removed the Tak FS12" which was piggy backed on the 12" Officina Stellare RiDK. The we dismantled the many, many, many cables from the setup, then the 12" came off and finally the MEII as well. Leaving a vary bare pier. The next stop for the equipment is a temporary dome (The IMT2 a sister of this observatory) where we (my many astronomy friends) will perform a dry fit of the existing kit, add to it some new equipment to allow the entire setup to be remotely controlled through SGPro before we then take it on a road trip down to Spain. If you are interested in how I get on then follow my posts and I will keep you up to date with the travelling setup until it reaches its final observing space. If anyone knows of any good insurance for equipment in remote observatories please let me know. Thanks and Clear Skies. Dave
  17. 3 points
    Yay, sunshine Nothing doing in white light as usual but a little activity in Ca-K.
  18. 3 points
    Single random frame, basic stretch using Pipp. Processing the stack at the moment.
  19. 3 points
    I have no real interest in completing either of these images in narrowband but I had nothing else to shoot really--the Moon was at 71% and high, and I had completed most of the available targets recently--I will revisit, but not quite ready to do so. Not imaging at all? Well that just wouldn't do. The other parameter that I needed to suit was I had to get up early for work in the morning so I could not image all night. So I picked a target (cave) that I could image until about 12:00--then I would slew to the Cone and let the rig run all night, got up and turn it off before work. I had to make sure there was no chance of a pier collision (tripod in my case), and no chance of rain. I was set. I had recently started using the temperature compensation feature in my focus kit--which does a remarkably apt job of maintaining focus through temperature changes once a model is made. But--my FWHM values just before changing to the Cone were very good for me--I new no focus tweak would likely result in an improvement. But--the subs of the Cone had a FWHM of at least 1 arcsec greater than the Cave. At 5 am I refocused and sure enough--brought down the FWHM by 1 arcsec. Perhaps this is the case of the TAK focuser shifting ever so slightly? Perhaps a Starlight instruments would not have done so? I know I should have checked focus after the slew--but time was not available. So--the question--is the large FWHM visible in the cone image? I was going to delete the data, but decided to go ahead and process it. In the end I have learned a valuable lesson.....Always refocus after a slew. The cave image took quite allot of processing to get to this point--it has 49 5min subs, shot with the FSQ 106 and ASI 1600 under good conditions. I was a bit surprised how noisy it came out. At least focus was good. Double Edit--the subs came out virtually noise free! This brings up a point I tried to make a while agao--why are some parts of the sky inherently noisy and others not.....at least for me. Cone image--not much processing at all. The FWHM tells me the focus was off (confirmed with B-Mask) but not sure it looks out of focus. The question is--are the stars obviously bloated? EDIT--The cone has 50 5 min subs
  20. 3 points
  21. 3 points
    SPECTACULAR!! This classifies as a globular cluster but it is very different than the others. I spent way more time on this than on other objects but it is totally worth it!
  22. 3 points
    Place them in a tube followed by a ruby then a light source. Attach these to sharks and take over the world. ?
  23. 3 points
    30 x 300sec @ ISO800 with darks, flats and bias frames Taken with a Sigma 70 - 300 telephoto lens @ 200mm UHC Clip filter Processed in Startools and finished in CS2
  24. 3 points
    Hi Everyone! It's been a while since I posted any of my images, but I've been working hard to improve my technique over the last year, and combined with the move from DSLR (Canon 1100D) to CCD (Atik 314L - not the plus one ), I've been waiting until I got it all sorted and I was starting to be happy with the results. So here's my first ever bi-colour Ha/Oiii image - The wall region on the North America Nebula in Cygnus. Details as follows:- Camera – Atik 314L Mono Exposure – Ha – 2hr 20mins, OIII – 3hr 15min Filters – Astronomik 12nm Ha Filter, Baader 8nm OIII filter Telescope – Ikharos ED70 f/6 Mount – Skywatcher HEQ5 with Rowan Belt Mod Guidescope – Off-axis Guidecam – SX Lodestar Guide Software – PHD2 Capture Software – APT Stacking and Initial Processing – MaximDL Post-Processing – Photoshop CC and Lightroom CC. For more detail, feel free to take a look at the post about it on my website:- https://www.astrosite.co.uk/north-america-nebula-in-cygnus-bi-colour-narrowband-13-10-18-14-10-18/ With this image, I stacked and combine using Maxim, then re-combined the Ha with the Bi-Colour image as a luminance layer to bring out the detail and reduce the noise. Hope you like it :-) Cheers, Adam
  25. 3 points
    Hi Iapa, Coming a bit late to this party but I would be very surprised if you couldn't run your set-up from a Pegasus UPB. My main DC power supply has an ammeter fitted to the output and even with everything running at once I have never seen a total power draw more than 7 - 8 amps. My power network on the OTA is like this and the Pegasus handles it without any problems. HTH Regards, Hugh
  26. 3 points
    There are lots of lovely M33 images on SGL this week, and this one is no exception, lots of detail in the spiral arms. I am also a novice and still find it hard to critically appraise images. However I am noticing a little bit of a gradient running across the image. I hope you don't mind, I ran it through PS to remove the gradient and some 'greenness'. Kind regards Adam.
  27. 2 points
    Here are my attempts at Astrophotography with a smartphone. Taken thought a 10 and 20inch Dobsonians. Most of the photos have been processed through photoshop. The eclipse photos where taken with a smartphone with a small screw on Samsung lens and a home made white light filter. I have more on my Instagram https://www.instagram.com/astroramblerphotos/ Venus Messier 13 (Hercules Cluster)
  28. 2 points
  29. 2 points
    KjPn8 is not among the most common imaged targets - although you may already have captured it, because it is pretty close to famous Bubble nebula and M52 cluster. It is faint and unusually shaped object with apparent dimensions 14x4 arc minutes. Distance to KjPn8 is estimated to 5,200 light years. It has bright core with apparent dimensions 4x6 arc seconds. Image below was made with QHY163M camera and Meade ACF 10" telescope on EQ6 mount. It is total over 12 hours of exposure in Ha and RGB bands under my suburban sky. Inverted Ha band only: Thanks for watching!
  30. 2 points
    What a fabulous night it was last night (Saturday 6th Oct) Everything worked flawlessly with no issues except for one green channel getting trashed from high cloud, that passed pretty quickly and I was able to continue. This shot is a simple RGB image, I do have plans to get some more data including Luminance and Ha to enhance the H2 regions. Im quite please with the core detail. Exposure time 7x 900s in Red, 7x640s in Green and 860s in Blue. Taken with my AG12 and H35 camera Click to view full res image Thanks Peter Shah RGB Managed to get 4hours of Ha 900s subs....click for full res version RGB and H-alpha
  31. 2 points
    Some final images of the moon that I see that have been stacked and manipulated, remind me of wet slate, not what you'd see with the naked eye, but artistic licence is what it's all about for some folk.
  32. 2 points
    Just for some fun last night put an Ha filter (Baader 7nm 31mm) in front of my Samyang 35mm f1.2 lens on Fuji X-T1. This is 8 x 40sec at f1.4 iso 6400, cropped to about 70% due to get rid of the heavy vignetting. OK the lens is very fast, but still shows that the fuji camera has reasonable sensitivity at Ha.
  33. 2 points
    Have none of you guys got a rabbit as a pet? Rule one. Protect all cables. Rule 2. That wasnt good enough. Lol
  34. 2 points
    thats the final image from that stuck but i am a bit dissapointed i hoped for something better will try stacking again with some different settings and hope for the best
  35. 2 points
    well finale rebuilt my 200 pds and got it all align'd mirrors and focus tube and fitted baffles to the main tube it took a while but its done now first light from night before last ngc 7635 the bubble nebula and messier 52. HA 3 hrs 30 mins Red 37 mins Green 34 mins Blue 34 mins thanks for looking and all comments and critique welcome
  36. 2 points
    I run my DD822 (from Dry-It-Out) 24/7 in my Pulsar Observatory and have it set to 50% on the built in sensor. By coincidence, mine stopped working today with an 'alarm' message. After some head-scratching, the fault was apparently caused by me failing to clean the tiny mesh filter at the back - a quick clean in water followed by a dry-out in the airing cupboard seems to have resolved the issue but time will tell! I won't forget this vital maintenance item again. It might be worth checking this in a controlled environment? I have no idea how much it costs to run it and I don't think I want to find out BUT my observatory gear remains in perfect condition at all times with no rust or oxidation anywhere and that is good enough for me.
  37. 2 points
    I've never had my grubbies on a stopped down 7x50, but I'm sure they must exist. Almost all the severely stopped down cases I've seen have been 10x50, Nx60 and Nx70. I do know that some Nx80 and Nx90 are afflicted as well. More importantly, I think, in this regard, I've not seen many stopped down Nx40 or Nx42 either.
  38. 2 points
    Last night was really clear, and as per usual it coincided with our bimonthly astro club meeting! I usually don't get home til after 10:30pm form the meetings. This was my first go at (almost) completely remote imaging. I say almost because I had to call the wife and get her to open the roof of the shed. Apart from that I orchestrated the entire imaging session via Team Viewer from my mobile! Luckily it was still focused from last night, and seems to be ok still. I may consider investing in a motor focuser. I only stacked the lights without calibration. This is my first lum image with the CCD. There are about 4 hours data in this. I will update when I get time to process it and add the colour data I took with a DSLR.
  39. 2 points
    I want to present and discuss results of my recent work on algorithms to get the most out of captured data. I've been doing NB of Bubble nebula, and conditions were not that favorable. I had LP to contend with (in spite of NB filters, LP is strong in the young one ...), and also changing in local transparency and fogging up of secondary mirror (very moist evenings with high pressure - first time I had my secondary on RC fog up). LP is very strong in one direction - city center. I live on south-west part of the town, close to river, and in south / south west, LP is at its weakest. Due to target position at this time of the year, I was forced to shoot early in the evening - right after astro dark had started - and that is also bad - most of the lights in households are still shining. Here is example (center crop, calibrated and aligned) of 3 distinctly different subs of the same target taken on the same night. Left one is at the beginning of the session - target was in direction of the most LP. Middle one is right after meridian flip, so LP had died down quite a bit, but another problem (which I had not noticed) started to show - secondary fogging up. Right frame is from the end of the session (the least LP but secondary pretty much fogged up completely). Subs are as they are without any processing or normalization - linear stretch to show faint signal captured (and scaled at 50% for easier viewing). First step in optimization of the data (after calibration, and some tweaks to bin x2 process - I bin x2 to get effective resolution of around 1"/pixel, and this time I used "smart" binning that accounted for FPN in bias - will need to further develop this at the moment it is just "a hunch" technique without precise calculations to maximize SNR - it just looks at noise in read / dark subs and not full SNR "picture" - no signal information is yet available) was to apply "TTLR" algorithm. TTLR just stands for "Tip-Tilt Linear Regression" and it is something I developed to normalize frames and equalize any background gradients present in the image. Here is result of this applied on selected 3 frames. As you can see, algorithm works pretty well regardless of low SNR in last image. It also shows how much noise there is in last image compared to other two - when signal is equalized noise tends to pop out in low SNR images. Again images are linearly stretched as in above case and scaled down 50% for easier viewing. TTLR works like this: Reference frame is selected and other frames are normalized based on reference frame. It is iterative process. First solution is found for linear function to minimize difference between reference and linearly scaled and shifted frame to be matched. For this I use simple least squares method but not on individual pixels - this works poorly in low SNR scenarios - too low signal for algorithm to pick up. I actually bin image on a grid of values (take average in "zones" that are cells of NxN grid placed on image) - N is adjustable parameter. Rationale is that signal from target is multiplied with certain coefficient - attenuation based on air mas / transparency / etc and certain level of LP signal is added. So result value of image is in form a*X+b - which is linear function. Next step is to take residual from reference frame minus scaled target frame and fit planar function on it - this is Tip-Tilt phase - trying to match background gradients of both image. After this gradient has been accounted for, we return to step 1. In this iteration we can now more precisely determine linear a and b. After that we again do Tip-Tilt phase, and so on. After just a couple of rounds values start to stabilize. Above example has been done with 8 rounds on 8x8 grid for linear phase. Now that we have matching subs in term of signal strength and hence varying noise due to difference in SNR we can think how to combine them. Simple average (or sigma clip based on average) is not optimum approach. It works well when SNR of subs is matched. Thus I developed stacking algorithm that accounts for different levels of noise. Here is how it works: It is again iterative method. To determine weight of each sub in weighted average we need to asses level of noise in that particular sub. Since we don't have exact signal, we use next best thing - we know that stack of frames will have much better SNR. So we set our initial weights to equal parts and we compute weighted average. Then for each sub we look at standard deviation of weighted_average - particular_sub. Since we assume that both have equal signal, and that weighted_average will have much lower noise - difference of these two will be approximately noise of particular sub (not quite, but best we can do). In this way we determine noise of each sub, and based on a bit of math (just a simple expression for total noise and finding minimum of that expression via first partial derivative equal to 0 - system of equations, a bit of matrix math) we can determine weights for each sub. Now we can proceed to next iteration, since we in the first round estimated that straight average had best SNR, but now we have better approximation to it due to new weights for each sub. And we rinse and repeat - each time getting better estimate for noise in particular sub. Above is general description of the process, there is another component to this - not each part of image will have same noise, so in high signal areas weights will be different than in low or none signal areas (some of the noise comes from shot noise of target). For this reason we apply above logic to certain regions that have the same (or very similar signal levels). This is again done by doing master average and then splitting image into zones based on signal level - in this particular case I used 24 masks with quadratic distribution of signal levels. Here is the result of above mumbo jumbo: It is animated gif composed of two frames - first is result of above algorithm, and second is straight average. It can be seen that SNR is improved with new approach. Even some of hot pixels are less visible - probably due to fact that they appear in low contribution frames (low weight, or high noise). At the moment algorithm does not include Sigma clip for anomalous pixels (hot pixels, satellite trails, airplanes, etc ...) but I will be working on it. Another thing that I still have not figured out is how to best subdivide image into areas of similar signal - currently I've implemented straight linear and quadratic approach (current weighted average image is inspected, min and max found and that interval subdivided into smaller intervals - then zone is created out of all pixels falling into particular sub interval. Sub intervals are either linear - same width, or quadratic, meaning low intervals are the narrowest and as signal strength is going up they get wider and wider - 1:4:9:16 .... -ratio of interval widths - above result is with quadratic approach). Possible other method would be to sort pixel values in image and subdivide zones so that each zone contains certain number of pixels. Not yet sure what is best approach, we want signal in the zone to be the same, but we also want zone to contain enough pixels so that noise statistics for each sub / weights can be effectively calculated. This is it for now, I need to reprocess other channels with this method and to additional tweaks - like sigma reject inclusion, maybe feed signal strength back into adaptive bin method for even higher precision there, and finally complete rework of this NB target. BTW all of this has been implemented as plugin to ImageJ / Fiji not as a custom software (yet? ).
  40. 2 points
    ITYM "entry pupil"? ?
  41. 2 points
    Hi all I tried putting together my first Bi colour image in Astro art last night of the witches Broom/western Veil having captured about 9 hours of Ha and Oiii. Does anyone have an advice or tips or cc on improving this from a processing or capture point of view as having got to this stage i haven't really much idea about processing it. I have seen some pictures where the the number of stars seem to have been reduced so the nebula stands out more. Subs were 20 minutes and i processed out vignetting etc in PS rather than using calibration frames. Would adding S ii have an a big effect on the image and if aquire more subs generally will it benefit from more detail. 11 x 20 mins 0 iii 17 x20 mins Ha Atik 314l on Skywatcher Ed80 Many thanks
  42. 2 points
    Hi as a newcomer to astronomy I have been trawling the net for resources and came accross this course and its free. Just set up a free OU account and start the course at anytime. http://www.open.edu/openlearn/science-maths-technology/the-night-sky-orion/content-section-overview?active-tab=description-tab There is another free course that I have signed up for which starts in Feb which studies the moons of our solar system
  43. 2 points
    I thought this was going to be a thread asking should you blow your nest egg on an observatory and some really expensive gear or save it for your children to inherit. The answer to that one is easy. Blow the money! The box question is more difficult. Only you can know the answer. IMO
  44. 2 points
    A fantastic planetary nebula, a dim star and bright core, surrounded by a bright inner ring with a dark patch in it, and an outer dimmer halo.
  45. 2 points
    ill be in my obsyroom where else ? heres what my moon looks like tonight when it isn't covered with cloud.
  46. 2 points
    Doing some very lazy moon gazing ... From inside though
  47. 2 points
    Just to prove that it wasn't all rain and flooding, I captured this Sunset at the SGL Star Party on 11th October with my iPhone as several of us walked down to the cafe for dinner. I have called the image 'Californian Sunset' for reasons that many deep sky images will hopefully appreciate!
  48. 2 points
    I’ve said no..... Just think how proud you will be of yourself, and how exciting it will be to watch them open the boxes.... ..... and how crushingly disappointing it will be when they are not interested at all ? ?
  49. 2 points
    ... there is probably a cat inside.... along with a collapsing wave function......
  50. 2 points
    Had another look at this last night and managed to get an image through my Samsung S8
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