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Laurin Dave

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Everything posted by Laurin Dave

  1. The Esprits are very good (I have two a 150 and a 100) .. as Olly says the crucial question you need to ask yourself is what fov do you want. What camera do you intend to use ? The 150 (or a TEC140) is great for galaxies but needs a large (ie APSH or Full Frame I have an SX-46 ) sensor to capture decent areas of the most popular nebulae, (and may require a focuser upgrade to cope with the weight). It can do planets but when I tried on Jupiter the images were someway short of those taken with my 20 year old 10" LX200. As for doing mosaics my experience is that I can get them to work in narrowband but not LRGB as the gradients (I image from Bortle4/5) are just too much to deal with... as a result of this the Esprit150 is on the linen cupboard, the SX46 is on the Esprit100 and is dual scoped with a WOGT71/ASI1600. Dave
  2. I ordered it last Monday.. wasn't expecting it till the new year as FLO quote 15-20 working days delivery but DHL just told me that it'll arrive on Monday
  3. The total area of glass collecting light is nigh on identical at 25529mm2 for the Esprit duo and 25057 mm2 for the RASA (taking into account the 90mm diameter camera). You could speed up the colour capture by going mono on the Esprit100 or as Adam has suggested use RASA colour data with Esprit150 luminance... be very interested to see that.. Dave ps... my ASI2600MC and Askar200 should arrive tomorrow... what is the world coming to!
  4. Both very nice Goran although I have to say I do prefer the top one.. I do think the f number thing is misleading ... your Esprit150/Esprit100 system captures photons/per unit area of sky significantly faster than your RASA/ASI2600 system does - 2.25 times if my calcs are correct although most of this is luminance with the colour data only being captured at 25% of the rate of the RASA (if you ran the Esprit100 with a mono plus filters it would double its speed).. which I think you can see clearly by comparing the richness of the colours.. Dave
  5. To me they look like internal reflections from some part of your optical train caused nearby bright stars (Orion being full of them)... the one to the top right is brightest so looks like its caused by Rigel, bottom right by Saiph and the left one by one of the Belt stars. With the camera off take a look through your scope in daylight and see if you can see any bright edges if so they need coating with antireflective paint or flocking. The size of them would suggest to me that its the flattener
  6. Hi Adam... So you have succumbed! I followed the tutorials at Light Vortex Astronomy - Tutorials which I found very good then got Warren Keller's Inside Pixinsight and have recently got (on recommendation of @wimvb) Rogelio Bernal Andreo's Mastering Pixinsight which is excellent and available as a .pdf for $25 or ,pdf plus paper for $55 plus postage. Dave
  7. Thanks Adam.. its a bit better than my first efforts with the data! Dave Fireworks Galaxy NGC6946 through an Esprit 150ED... again - Imaging - Deep Sky - Stargazers Lounge Fireworks Galaxy NGC6946 - Imaging - Deep Sky - Stargazers Lounge
  8. Might not be the issue but when I first started using eqmod with an AZEQ6 I had a similar time out issue with my laptop, it turned out that the USB ports were being turned off to save power.. for me the fix was... Control Panel, Device Manager, Properties and then for each USB port disable power management HTH Dave
  9. Thanks Wim.. yes indeed, I'll get more time on it next time around to try and get some colour and definition to the dust Thanks John, a panel to the left to complete Barnard 150 is in next years plan Dave
  10. The weather has been abysmal here for several weeks apart from a brief spell early last Tuesday evening. The winter targets were too low so I captured some wide field data on the Fireworks Galaxy (2hrs lum on the Esprit100SX46, 50 mins Red 30 mins Green and 20 mins Blue with the GT71ASI1600) to which I have added hi res data of the galaxy I'd taken back in 2018 with my Esprit150ASI1600 and which I have just reprocessed for the umpteenth and possibly final time. The wide field includes NGC6946 open cluster NGC6939 and part of dark nebula Barnard 150 From Wiki.. NGC6946 is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its distance from Earth is about 25.2 million light-years. Discovered by William Herschel on 9 September 1798, the galaxy has a diameter of approximately 40,000 light-years. It is heavily obscured by interstellar matter due to its location close to the galactic plane of the Milky Way, with a dimming of ~1.5 magnitudes. Due to its prodigious star formation it has been classified as an active starburst galaxy. Thanks for looking Dave
  11. Hi Spongey My SX46 plus FW, filters, flattener, OAG and guide cameras weighs around 3.5kg, the focuser was fine when it only had the ASI1600/EFW/OAG on it but as well as being less weight it was also a much smaller fov. The SW focuser and Esprit150 was fine with a full frame DSLR with 6 micron pixels.. Dave
  12. My Esprit100 is not flat at full frame.. it just about manages it to APSH .. my Esprit150 is flat to full frame with a DSLR, slower f ratio I guess, all with 6 micron pixels.. smaller pixels as people are finding are more revealing.. also with my Esprits the stock focusers are not up to the job with a heavy camera and sag.. this cost an extra £1000 to fix
  13. Thanks... this is such a lovely area, maybe you can add a couple of hours of true colour for the stars and reflection nebula.. How are you getting on with the 6200 camera? Dave
  14. Very nice Goran and quite amazing for only 2.7 hrs, intrigued that you've caught the blue reflection nebula in the Flaming Star through an Ha/Oiii filter.. Working on my own version of this... its going to take much longer than yours! Dave
  15. Very nice Adam.. probably, but not necessarily the JTD moving as it just demonstrates that there’s relative movement.. if you have it I’d check the individual subs for each system in Pixinsight Blink or equivalent .. this will show whether there’s any movement .. dithers will show up but in between the stars shouldn’t move if they do then that system is moving relative to the guide scope .. I had it with my GT71 on a JTD saddle until I tightened it all up with a wrench
  16. Nice one.. Goran has started a trend it seems!
  17. In Starlight Vision click on Image File tab then select Save.. this should show you where they’ve been put... in a Starlight sub folder in your Documents folder is the default I think hth Dave
  18. Sidereal rate in the handset is correct for tracking the planets, it sounds to me as if your polar alignment is off, your mount will also have periodic error which will cause the planet to oscillate back and forward along the East West axis but only by about 3-4 Mars diameters each way and not really a problem for visual
  19. Very nice, good detail from the Redcat and lovely colours
  20. I believe that is correct .. you’ll soon find out
  21. If I remember correctly and your machine is Windows 10 control panel.. hardware and sound .. power options.. edit plan settings.. change advanced power settings .. usb settings.. then disable usb selective suspend .. if it already is then that would rule it out as an issue
  22. Also check the USB ports on your laptop aren’t being powered off .. I had this happen with similar consequences
  23. Very nice Rodd, great colours and detail .. good to see you back Dave
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