![]() This is all about to use the PA in that area are less stars indeed. Strangely for any reason rarely it get a plate solve in less a sec with 210 stars found. It does found in average 180 stars with the gain on max and the exposure time on 10 sec! So I try different exposure time and official focal length and the 0mm focal length. I used my redcat 51mm with the same mount a CGX and it works fine due of a large quantity of stars to detect. I spend nearly 3 hours to find out what's wrong. I try yesterday few things to understand why the plate solving do not work at all with my RC 2000/254 with my asi 294 mc pro Asiair non pro. With an image, we can at least narrow down the thousands of possibility why plate solving failed for you. Without the image that you are trying to solve, I am really flying blindly making guesses. It would be better if you could post an image we can look at. You have to be really unlucky (like winning the lottery type of chance) that hot pixels form a known asterism of real stars. But I am under the impression that ASIAIR should be rejecting bad pixels (easy to do) before it plate solves. One reason could be that there is some hot pixels that ASIAIR is mistaking for a known asterism of stars (you can check if it is doing that by capping your telescope, even in the daytime). If the intermediate screen is showing zero, then ASIAIR is always solving to some silly focal length instead of starting at some silly focal length. ![]() That screen will show the focal length ASIAIR is starting at. When it is trying it, you will see an intermediate screen. It seems that your root problem is not being able to start plate solving at some reasonable focal length (or zero).Ĭheck carefully again when ASIAIR is plate solving. if ASIAIR did not take "0" as the starting focal length, it also may not take the focal length that you derived from. It will return a plate scale, and from there, knowing your own camera's pixel pitch, you can derive the true focal length. It takes a little longer (sometime a few minutes, when their computer is overloaded), but if will not solve, practically nothing else will.Ī will not return the focal length since it does not know what sensor/camera you are using. It will accept virtually any image format (from JPEG to PNG to TIFF to FITS). Have you tried sending the captured image to ? There is a web tool at to plate solve. It seems that plate solve does not even have a chance to start with a focal length of 0. However, from your description, ASIAIR is plate solving by starting with a ridiculous focal length. A narrowband filter will often improve it, as long as you bump the exposure time up to capture sufficient stars. In general, the answer is yes (the Moon will reduce the signal to noise ratio and thereby make star detection problem more difficult). Rfulen01 Also this was during a full moon so do you think the excessing light could have been an issue? It is best to start with zero, especially with a reducer since any small change to the back focus will change the true focal length by a lot. If you do not start from zero focal length, make sure you factor in the Askar's reducer. ![]() If you have a second iPad or iPhone, you can also start fresh from there. You may need to clear any ASIAIR app preference after removing the app from your iPad, then re-download a new copy of the ASIAIR app. If ASIAIR is still starting with some ridiculous focal length, there is some weird ASIAIR bug concerning what it thinks the pixel size of your sensor is, but I haven't read of any ASI1600 specific plate solve problem. Be sure that your focus is tack sharp, and that the skies are fully dark, with no objects (tree branches, chimneys, etc) that cast a dark shadow into the frame.įor this season, M45 is a good place to plate solve at to get an initial focal length from zero, since the Pleiades has a nice tight, distinct asterism with moderately bright stars to make plate solve easy. ![]() Then capture an image of the stars and execute a plate solve. To be certain, leave the Main Camera Setup window, and open the main camera window again to check that the field is still zero. If you enter zero (the preferred way if you are not 100% certain of the focal length to a couple of percent) ASIAIR will search a larger set of asterisms.īe sure to tap on the focal length field to select it, then clear the field, and then type a single zero, and then type Enter on the virtual keyboard after you have selected the camera. When plate solving succeeds, it will update that field. Each time I plate solve it defaults to a focal length of 79533MM.įrom my observations, ASIAIR will always start with the focal length that is entered into the Focal Length field in the Main Camera Setup window. Rfulen01 I have used 0MM and 400MM as the focal length.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |