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About bluemarkus

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    Karlsruhe, Germany
  1. good on ya mate.whenever you got some leftover pocket money think about getting an UHC filter. it costs u some 50 bucks but gives better vision for most DSOs. i´ll tell you a secret my favourite galaxy is an unknown one. go to the canes venatici right next to the big dipper. it has 2 main stars. the lower brighter one and the upper dimmer one. go from the bigger lower to the upper dimmer one and then just a wee bit beyond. thats my favourite galaxy. its supereasy to find and well visible.
  2. just messed around with my webcam first time on the sunspots. today 11515, 11514 as well as 11513 and 11512 were clearly visible. still gotta learn to use Avistack and especially the postproduction at the end, where most of the detail can be gained. i made a little mosaic and with the toUcam the entire solar disc is 2000pixel big whereas the webcam chip has only like 640. so consider yourself lucky even if your DSLR is not the newest model it still is a DSLR hehe..
  3. in these pictures u can see the effects of hitting the LX switch on the camera. theres grey grizzle everywhere. why is that. do i have to make changes in the "camera---device" tab ? the other picture shows you my device manager of win7. the camera and the controller cable are clearly connected.
  4. hello there... i am trying to test the LX (long exposure) on my SC1 modded toUcam. the software i use is "DESIRE". its a tiny but easy to use+powerful program. heres the deal: i set up my little scope, attach the toUcam (840K, modded to SC1, long exposure mod). connect the USB cable. then connect the controller cable(i use a digitus adapter from serielto USB, which works well and is recognized by win7. its also able to handle the data during readout, older adapters have failed in this area). ok now i start "desire". aim my telescope at a tree, get the camera into focus while taking single pictures. the exposure time i set down to like 0.02 for this process. ok now i can get sharp pictures of the leaves in that tree. so the camera works in regular mode. but now whenever i flip the switch on my camera to go into LX mode, i only get grey grizzle on the screen. why is that ? what am i doing wrong ?
  5. i built myself an electronic focusser for my dobson, but havent used it since i havent gotten into imaging so far. i built mine from LEGO and it worked great. but probably that was not the answer u were looking for cheers MB
  6. i flattened my box now, trying to take pictures with a digital pocket camera, but to no avail. i get no sharpness into the image. DSLR or professional camera (atik, starlight etc etc) is the way to go. with a toUcam the star analyzer can already deliver humble results, but dont expect too much. apart from the balmer lines (hydrogen), many are really thin, having more resolution is necesary when u start finding other elements etc. in the spectrum. i dont think with the usual 20Angstrom resoution u normally get with toUcam u can get too good of a spectrum. the star+ rainbow trail hardly fit on the tiny chip. but at least you can check and validate the spectral class and see the most significant features and compare it to other results online. thats a start. i´ve also seen a website where a guy bought a huge prism from a thrift store for like 15$ and put it in front of an old SLR camera and also got high-rez spectra through this. that was back in the 80s. imagine in the 80s people had no computers like today. what amateurs can do today in 1 day took a month for professionals back in time.
  7. hey i know a girl that lives in papeete her name is vaimiti flohr. but probly her name changed since she got married. well i never been in the south pacific but shure would like to go snorkeling there sometime hehe... also dont forget the surfspots there like cloudbreak... your pictures look really spectacular, i bet you already have some fine equipment. now u only need to put in some time to learn how to master it. astronomy takes some time learning its awesome hobby. the limits are basically endless... cheers mate
  8. here i did my first successful calibration in Vspec. on young blue stars the H-lines alpha and beta are the best and easiest way... thanks for he links i will check them out and see which ones are good...
  9. bluemarkus

    bluemarkus stargazers album

    here be all my images etc that i wanna show u guys
  10. well i downloaded this atlas from richard walker. its legit. also just going through the vspec flash tutorials. first everything looked complicated but I think it wont take much time until i can make my own first spectra. be it of own data or "stolen" data from the internet. can u island-inhabiting people tell me a weblink where i have access to spectral databases online ? interested in both, processed material(graphs) as well as raw material. (unprocessed or only half processed).. checked out the BESS database but not too impressed, the spectra presented there dont show the whole visual range and the user interface is also weird. i think there must be like a few dozen others out there with public access ? i need material to learn to use Vspec.. cheers MB
  11. ok let me try some and then get back when i have some first results..
  12. guys you have answered promptly i am impressed. but you´d be even more impressed ot see my desktop screen. in the meantime i installed IRIS, ISIS, AudeLA, SPLAT-VO and DADADADAAAAAAAA...... *sound of victory* visual spec is running ! had to use administrator rights during installation, now it works ! as always i jumped the gun instead of reading the fineprint on the vspec website. i´m from the instant gratificaton generation i guess...well i guess the starlight will teach me patience since it takes millions of LY to reach us hehe. i completed already a little tutorial with ISIS. its good to know some basic ISIS functions. i think i will for now stick toVspec and then after some months uninstall all unused software again. so now its your turn, post me some spectras that i can work with. i am interested in the star "chara", or Beta Canis Venatici. its my favourite star cuz just on top of it lies a galaxy thats really easy to find. i just read in wikipedia that its a main sequence star about like our sun (yellow), and has a great Sodium line which makes it an awesome pick for spectroscopy, in fact this stars been used to calibrate other star-spectrums. sounds like a great first try in visual spec. cheers MB
  13. hello british islands, its the dark, cloudy, nasty german weather here and i just try to figure which program (freeware) to install to start messing around with those visible light spectra ? even if i dont have a star analyzer yet theres tons of data of spectra on the internet to work with, compare and learn about absorption lines etc. i tried "vspec" but it wont install, seems to be a common problem on win7. anybody have experience with IRIS ? or a webbased solution ? i´m only looking for an entry solution, i can prepare my spectrum in gimp(photoshop). so whats your experience, are there options to vspec or can u give me a hint how to get vspec ot run ? it wont execute even when i try to install as administrator under "winXP" mode. cheers MB
  14. yes star analyzer with little over 100€ per unit is the ideal entry level equipment for astro. i´m just amazed about this whole optics thing. i mean we can see that the physical laws are the same in the entire physical universe, since galaxies billions of LY away look the same when photographed and also behave the same. so just by getting a starlight spectrum we can know things about its physical reality, movement, surface temp, contained gasses etc. isnt that fascinating ? even tho we havent built telescopes big enough as to resolve even the nearest stars into a disk. we are but ants here on earth..
  15. so far attempts to photograph the spectrum hve failed. bu i think its possible when camera+box are solidly mounted. havent tried to use this thing with my telescope but will probly try tonight or sometime soon.. שלום - shalom MB
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