Gerald

Dear Andrzej, This is a very nice image. Right now we prepare the ASA calendar 2020. Would you give us permission to use this image? Please contact me at: g.rhemann@astrosysteme.at Thanks in advance Gerald

Hi Robin, The distance between the holes is 89mm. For the gravity center I have to ask back. Gerald

Misc settings and enable log files

Hi guys, Just tested Autoslew, Sequence and ACC with Windows 10 - works well! Gerald

George, I recommend to contact ASA support on this issue? Gerald

Dear Pelle, You are right - collimation is a tricky issue. First of all - as I have seen at the internet the tublug is 1 1/4" - I personally prefer 2" collimation tools - because one additional source of error can be avoided. Because I have problems with the laser to see it only sharp with glasses I prefer the Cats Eye Collimation tools 2". Only to at a first centering of the secondary to the main mirrors center I use a 2" collimated laser. Then with the Cats Eye tools it is a ping pong from secondary to main mirror and back. Most of the time several passages are necessary. I use the Cheshire to align the main mirror and the autocolli to align the secondary. At the end I have to see the star of david through the autocolli eyepiece as well as the center pupil in the middle of the hole of the mark. At a permanent facility I recheck collimation on a star. Hope that helps good luck Gerald

Dear Benoit, At use of windows 7 you would need the appropriate controller. If you would be so kind to contact ASA office we could offer and send you one. with best regards Gerald

Dear Ralph, There must be a difference in polar align values between the roughly alignment and the result after a bigger pointing file - this is caused by different sources as you already assumed (scope flex etc.). But finally as an aceptable good result for polar align - all values lower then five arcminutes is perfect! best regards Gerald

Hello Mark, You will find a detailed description on page 6: http://www.astrosysteme.at/images/Collimating_ASA-Astrographen_E.pdf best regards Gerald

Hello Haim, I wrote a quick set up word document and will send it offline to your email address. best regards Gerald

Markus, have you been succesfull now? best Gerald

Hello, To put it straigth - cables had never influence at tracking or slewing. Do you already own a mount with any problem? with best regards Gerald

That´s a very nice image George. Hopefully the comet will be a great one after perihel! Gerald

Hello Gerhard, thanks so much! Gerald

Hello everybody, If one have enough time to invest (balance, (auto)tuning, polar align, pointing file, this mount is tracking perfect. But believe it or not - the last time at comet imaging I was under extreme time pressure. I assembled the mount, made a roughly balance by hand/no motortuning, pointed with the laser to Polaris, moved to the comet (8° altitude!), started a local tracking - send it to autoslew - and all the images have been perfectly tracked :_) an impressive performance under these circumstances! best regards Gerald

Hello all, Has anybody tried to image the comet? This is the latest image I´ve taken under very tricky conditions - full moon, cirrus clouds, codiacal light, twilight :_) ASA DDM60PRO, ASA 8" f 3.6, FLI PL 16070 best regards Gerald

Hi Michael, No, the sky only informs Autoslew about the position of the comet but nothing about his move speed and directions. You have to do it manually. Gerald

Dear Ralph, You can download comet ephemerides for you planetary software at: http://www.minorplanetcenter.net/iau/Ephemerides/SoftwareEls.html E.g. with "The Sky" one can evaluate the DE and RA speed of the comet in arc seconds per second for a given date. best regards Gerald

Hello everybody, I investigated some hours to remotely take my first color narrowband image. I used the Hubble palette but experimented as well to embed the LRGB data as well. This is the original version: http://www.astrostudio.at/1_Deep%20Sky%20Objects.php?img=images/1_Deep%20Sky%20Objects/196_IC4628_3.jpg This is the revised version I like best: http://www.astrostudio.at/1_Deep%20Sky%20Objects.php?img=images/1_Deep%20Sky%20Objects/195_IC4628_2.jpg&PHPSESSID=a887ef9e8e97ecb39a5a28a939134ff0 This is the HALRGB version: http://www.astrostudio.at/1_Deep%20Sky%20Objects.php?img=images/1_Deep%20Sky%20Objects/194_IC4628.jpg Gerald

Hello everybody, We are in process of planning the new ASA calendar 2014 and are looking for images taken with ASA Astrographs. You are welcome to participate with an image to the selection. Please contact me off list if you are interested on: g.rhemann@astrosysteme.at best regards Gerald

Hi Tim, Should be the best in this case. Best regards Gerald

Hello Tim, Check at mount flip options - stay on side. At limits "how far can ..." use 90 and increase or decrease the value after trials because this value depends on the geographic latitude. As soon as you checked stay on side the minimum flip distance has no influence any more you can leave the value as default. best regards Gerald