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alpha015

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About alpha015

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  1. Thanks Whirlwind. Indeed, the comparison stars show graphs totally straight without any change in brightness. The final (partial) light curve: https://ibb.co/nvCuwz The transit cleary starts at the ingress and shows the 2.6% difference in brightness. No data for the egress because the camera took useless photos during that part of the transit. I will soon make a video about how I did it (you guys are masters but I think most of youtube audience would like to learn it) Thanks for all your help and support ! PS.: This is the solution ZWO gave for the problems with the camera: Please try to turn down USB bandwidth in software to 40.
  2. Ok i already overlaped manually most of the data: https://ibb.co/hjOWmz I still have to overlap 50 measurements more, those at the end.
  3. ingress : 0.414583 regress: 0.490278 indeed, i have data for 30 min after the transit but i still have to overlap the images in total i have 300 images, only 100 are showed in that graph will show u the final graph asap
  4. I think I can do it with Astroimagej actually. I'm gonna move the field of view manually so the images overlap while keeping their size. Tedious task lol but i want to get the light curve yes or yes. I guess I will ask ZWO to repair the camera or send another one also. Does this graph looks right? is that the transit? https://ibb.co/idjnpK That graph shows very few of my data. But I think, please correct me if i'm wrong, that the star normal state was at 1.02 and it went down to around 0.99, implying a 0.03 change which equals to a 3% drop. Am I right ?
  5. thanks for the link damn... so, there is not way to overcome the problem? should I send the camera back to ZWO for repair? I think part of my data is good , i get most of the light curve except the end , so i was thinking in modifying the .fits files by moving part of the images to the right place and leaving the other side for example in darkness. I'm trying this software to see if i can modify the .fits files: https://heasarc.gsfc.nasa.gov/ftools/fv/
  6. Damn.. so the data i gathered is useless? Thanks for answering.
  7. I tried again yesterday night. 2 doubts if someone can please answer me. 1. The field of view was suddenly moving a lot every several minutes during the whole transit without me touching anything. It was going to the left, then right, then middle, etc.. always the same exact positions. Not sure if there is a problem with the camera or motor. Here 2 different shots: https://ibb.co/kr9eKK https://ibb.co/nvkKKK 2. I took several darks and the program did the master dark. The light photos show some vertical thin white lines, but the master dark doesn't. Is this right?: https://ibb.co/kD8Zmz Thanks in advance!
  8. I tried yesterday night, but cloudy :S I was able to photograph hd 189733 for some time. Exposure 3 gain 1 and exposure 5 gain 5 turned out to produce a light line similar to exposure 3 gain 1. The camera did something strange though. It sometimes moved out of the field of view without me touching anything. It never happened before.. Not sure if it was a problem with the camera or with the motor drive of the mount. Will try again at the end of this month. Thanks for the help and time !
  9. Thanks for your answer. Ops, I didn't realize I had to adjust the exposure for the flats, I used a long exposure :S Perfect, I will do it. I will also try to center hd 189733. Tonight I will try but not sure if there will be clouds :S
  10. Ah yes, i took 15 darks yesterday and 15 flats today, although i changed the focus a little for the flats :S I'm still learning how to apply the master dark and flat to the data Data exposure 5 seconds gain 1 : c5.rar Master dark: dark_15_frames_13,2C_2018-09-07T00_26_07.fits Master flat: 21_00_30.fits Tomorrow there is a transit, i will try.
  11. Thanks for your answer. Yesterday night I did another test. 1. exp 5 gain 1: https://ibb.co/nnZjZe 2. exp 1 gain 1: https://ibb.co/kK41Ee 3. exp 1 gain 0: https://ibb.co/iwhA7z 4. exp 5 gain 0: https://ibb.co/jaRRfK 5. exp 5 gain 10: https://ibb.co/fr8YSz 6. exp 5 gain 1 focal 4: https://ibb.co/dA8NLK It seems that I obtained the best results with exposure 5 gain 1, but still the change in brightness is about 12% I think :S Btw you said I should get a straight line with around 1%, does it mean that most of the light points have to be between for example the values 1 and 1.01 of red_flux? But this guy (https://www.cloudynights.com/topic/462161-detect-known-exoplanet-with-dslrtelephote-lens/) got a straight line of 6%, right? : https://ibb.co/bCscpp I guess i have to drastically reduce my straight line, so yes, I will try exposure 5 gain 5 and for example exposure 3 gain 1.
  12. Photo: https://ibb.co/bOmrSz I attached you the file. Capture_00031.fits
  13. Thanks again for your help. Perfect I will try again tonight.
  14. Hi, I did it tonight. These are the results, each one 5 minutes of data: 1. exposure 10 seconds - gain 10 https://ibb.co/jMgKEe 2. exposure 10 seconds - gain 5 https://ibb.co/bOmrSz 3. exposure 30 seconds - gain 5 https://ibb.co/iZhLLK 4. exposure 30 seconds - gain 10 https://ibb.co/fmYALK All of them oversaturated lol Maybe I should try exposure 10 seconds gain 0? I will try again on thrusday night. Btw i didn't take darks and flats yet, but tomorrow yes. In this post in cloudynights the exposure used was 15 seconds: https://www.cloudynights.com/topic/462161-detect-known-exoplanet-with-dslrtelephote-lens/ In this other, 50 seconds: https://spectrum.ieee.org/geek-life/hands-on/diy-exoplanet-detector
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