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  1. Past hour
  2. I will take a look at that and see if I can do anything. What I did play with last night was the PPEC box in EQmod, didn't know what I was doing mind you. I run the mount in the ticked box Record PPEC mode for about 6 minutes or so. Whilst it was tracking the light on the mount was flashing a morse code like pattern, the after the 5-6 minutes it stopped. I then ran it ticking the other box run PPEC. In this time I had some very good guiding which was spoilt only by me not allowing enough dither time for fairly long periods I was getting better than 0.4 of sec on RA. I didn't get to run for long, only 40 mins as a thunderstorm rained on my parade. I manually stopped the APT opening the shutter for the last 5-6 captures and guiding was by far the best I have had. Dither is working for sure but seems to take longer the longer it runs, not had a look at the 15 captures yet but on screen they looked very good. Goto pointing is now bang on too, now the trouble is I am reluctant to change a scope over to another for want of messing things up, wish I could get some better weather, really poor this year and seeing last night was superb. Alan
  3. And if you want a simpler life you can go with so-called "bicolor" imaging, with just the two brightest wavelengths (for emission nebulae, H-alpha and O-III). Some folks create a synthetic green channel by mixing the H-alpha and O-III, some just let its bicolor freak flag fly. There is an excellent reference on Cloudy Nights on initial settings for the ASI 183: https://www.cloudynights.com/topic/616524-sub-exposure-tables-for-the-zwo-asi183mm-and-qhy183m-and-colour-versions/. If you're running with just a light-pollution filter, use the "Broadband" category. Don't sweat the sky-brightness criteria too much, you'll probably wind up changing from that initial exposure anyway. This is just a recommended starting point. Oh, and flats: Unless you're some sort of luck genius, the filter sitting so close to the imaging sensor is just a haven for little dust motes. I never appreciated the ultrasonic cleaning feature of my DSLR so much until I had to live without it. The point about sensor proximity is that the shadows' circles of confusion are actually small enough to be visible when you stretch the image (unlike those of dust on the objective lens). You won't see it in an unstretched sub-exposure, but my stretched subs often look as if my imaging train has come down with measles. So you want to shoot flats. Calibrates right out. PS: Speaking of registering R/G/B or H-a/O-III/whatever: Siril also does a pretty decent job there. I'm super-impressed that carastro can get Photoshop to work for that, in my experience it sucks at that task. Seriously, I will never even bother trying PS for that purpose ever again. Astro Pixel Processor is absolutely outstanding.
  4. You've definitely got it going on there! I confess to pixel-peeping and saw what I would have thought was chromatic aberration if it had been a refractor. Look at some of the very brightest, biggest stars -- there's a sort of turquoise "shadow" cast toward the center of the image. ??? There seems to be a bit of a cast of the same color in the heart of the cluster itself, green is not a color I'd expect to see there but what do I know. Coma? Does coma come with a color cast? Sorry, my ignorance is showing yet again.
  5. Today
  6. Greg First of all welcome from Land Down I use car jump start pack to power my EQ5pro Lasts up to a week at Astrofests John
  7. Stephan Welcome from land down under You travel the universe in this forum I use EQ5pro for my ED80 New WiFi adapter makes things a lot earlier John
  8. Frustrating thing is not having the ability to view objects at or near zenith.
  9. Hello and welcome! maybe we can help with your mount, let us know what is frustrating you, clear skies Stephan94!
  10. Hi everyone I have been fascinated by space since I was a little kid. Recently got my hands on a SW 102/500 on az3 mount. Loving the scope but the mount can be frustrating some times. Clear sky's
  11. Lovely report Neil - very nicely related The group of galaxies here is known as Hickson 68 and is a worthwhile target under a dark sky even when there is no supernova to draw attention to it IMHO. Tonight here the thin cloud precluded galaxy / SN spotting so I had to stick to some of the brighter binary stars.
  12. Of you by chance have or have access to a deep cycle marine battery, they are fantastic for scope power supply, alligator to female cigarette plugs are a few dollars, aside from that, a regular power tank is great also. These sort of power supply units are usually kept in cars for boosting, I prefer a regular car battery (not my own car battery, a separate one just for my scope) kept in my trunk and charged occasionally with a trickle charger as a designated scope supply. I use a deep cycle marine battery I ran into for free, they are indestructible and last forever but if bought new they are pricey.
  13. I am looking for a Baader MK II MPCC Coma Corrector. Not to be confused with the MKIII, which is in present production. Thanks.
  14. Now that I have my new AVX Mount all set up, I realized that I have no way to power it up! Apparently, I need a power tank of some sort. The Mount came with a cigarette lighter cable but I’m no where near my car! Any suggestions??
  15. The Milkyway is awesome, and even more so in such a wonderful area like that.
  16. Yesterday
  17. Ignoring that pessimistic weatherman and trusting in the blue sky above me, I put the dob out to cool around 9:30pm. Returning to it around 10:45pm, I performed a quick collimation check and then took in the constellations available to me. Vega caught my and proved useful for aligning my finders with. Where to go? What to see? M57 was the answer. The little ring of cosmic dust tells the story of the death of a star. Moving closer in revealed a faint star on the outside of the ring. The central star too faint for my telescope. In complete contrast, the great globular cluster of Hercules contains hundreds of thousands of stars. At high power, I can almost fill the entire field of view with stars. My eye doesn't know where to focus, there's almost too much to see. Drifting down, I find a faint grey smudge. This is the galaxy NGC 6207, which I have never seen before. I make eyepiece changes to slowly reduce the magnification bringing the galaxy and the globular cluster into the same field of view. The galaxy has always been there, I just never thought to look for it until tonight. I go in search of another globular cluster, NGC 6229. Again thousands of stars but it seems so small after the previous expansive cluster. Higher powers do reveal the granulation from all those stars at its core. Overhead a bright light starts to move across the sky. The ISS! I decide to chase it with the scope. Initially, just managing fleeting glances and then starting to track it. Soon I am following it at 133x magnification and tweaking focus as I go. I can make out the basic outline of the space station. As it disappears out of view, my heart is racing from the thrill of the chase. Pointing the scope high overhead, I find a pattern of three stars in Ursa Major. Next to these 3 stars are 3 galaxies. Two are very close to each, NGC 5353 and NGC 5354 and a third, NGC 5350, is a bit further away. Within one of these galaxies a star has gone Supernova and the light is only now reaching us. The galaxy, NGC 5353, is 119 million light years away. I reach 200x magnification and begin the process of letting the pair of galaxies drift through the eyepiece. The supernova appears out of range until a chance knock of the telescope gives a slight wobble and briefly the faint point of light is seen. Encouraged, I continue to search and after a few minutes I have learned where to place my eye to see the supernova with averted vision. It is my second time observing this supernova but it still feels special. An event that will pass most of the planet by unnoticed. I lose view of the galaxies and look up to see that the weatherman's clouds have arrived. Before the sky is completely lost, I enjoy a close pair of stars known as Izar. The tiny blue companion star is a favourite sight of mine. Time now to come in from the peace of the universe and reflect on just how nice it is to look up.
  18. The big plus of a Mak that all other scopes struggle with is the ability to hang any camera off the back regardless of weight without issues of loading and distorting the focusser tube or wondering if you have enough or too much back focus.... Alan
  19. Are you sure? I thought this was in the free version (although now I've upgraded to 'plus', I can't check) In the picture below, I have tapped the '11.1 x 17.6' text to bring up the screen @Pazis talking about. Ady
  20. You've got it right - polar alignment sets an EQ mount up to be used accurately, and is a physical alignment achieved by physically moving the RA axis (using the latitude and elevation bolts). This is done first and there is no need to have the mount switched on. Star alignment is the setting up of the goto 'computer' (traditionally the handset in an out-of-the-box goto mount), rotating the mount around its RA and Dec axes to allow the computer to align its internal database of sky objects with where in the sky it needs to point the telescope to see those objects. The goto computer assumes accurate polar alignment, and so star alignment always needs to be done second. Ady (I hope this makes sense, I've redrafted it a couple of times for clarity, but in my experience this can sometimes make it less clear )
  21. Super pumped about my new (used) piece of glass, immaculately cared for by original owner, now i have adopted it, it will complement my Starmaster nicely. Enormous piece of glass on these i noticed, i was surprised by the size of the eye lens, larger than my first scope lol, i have read much about the Morpheus line, i hear they're great, if only the skies would clear up.
  22. Peter, Here's a quick sketch I did of your circuit which may make the relay/diode connections clearer. I drew the Ground connections as ground symbols to save cluttering the diagram with lines. The ground symbols are of course all connected together in reality. There's also no need for a double pole switch to the 7Ah battery as all the Ground/0V connections can be left connected to avoid things floating when not used. The Rigel motor output connections may need to be swapped over depending on which way the motor turns to make it drive in the same direction as your new system. I didn't draw in the hall effect 12V wire as it would be a bit messy so arrowed the connection instead. Edit: It's worth checking that the USB 0V connection from the raspberry pi is connected to Gnd on the VM110 board. I'm sure it will be or things won't work properly. Also, I didn't notice on your diagram until I redrew it but the symbol you had for the 12V 7Ah battery was drawn the wrong way around. The long line is +ve and the short line is -ve. Alan
  23. May I take the 8.8 please ? PM on its way
  24. The Full-Frame camera may well be vignetted, but you can always crop, down to where you would probably crop with a APS-C. Yes EF lenses may well be expensive, but Chaz is hoping to use his EF-S lenses, so maybe Full-Frame is out. Michael
  25. You have to be careful about usage of word infinite. One that contains "everything that exists" is not necessarily infinite. Infinite that we are talking about has very exact meaning and is related to concept of geometry of space. If for any given number, no matter how large you select it to be, you can find two points in space that have separation greater than that number in your chosen units - then universe is infinite in size. Infinite universe in above sense has infinite amount of "stuff" in it if we assume homogeneity, or if we assume that density is finite number.
  26. This asks the question "is there a better way" than our concept of mathematics, nature produces circles (not very good ones most of the time) and plenty of other regular shapes with very few apparent rules.... Alan
  27. My outreach eyepiece set is: - 7.2-21.5mm zoom eyepiece - Baader 2.25x barlow lens - Orion 27mm Edge-On eyepiece This set covers a lot of options, cost relatively little, is easy to view through and all three items can fit in my coat pockets easily In fact I seem to be using these quite often when observing on my own at home as well.
  28. Zolten First welcome from Land Down Under I have a SW ED80 on an EQ5pro Find serves me very well Have also recently got the WiFi adapter Down load the SynScan APP Makes life easy Sets GPS, date/time from my Android device Have attached pic of my EQ5, taken at a recent solar viewing night with my club John
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