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umbilic

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About umbilic

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    Nebula

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    lyme regis
  1. does anyone know the weight capacity of a celestron nexstar evo mount (8-inch model) ?
  2. I am disppointed in the low dynamic r ange of my camersa in lunar photography - try to get detail on the terminator and burn out the rest of the field. This applies both to CCD and DSLR. I am aware of the DSLR options - which are disappointing but is there a CCD camera suitable for lunar work with a decent dynamic range ? Lucky imaging and stacking with poor seeing don't lend themselves to the usual stacking techniques. Any suggestions ?
  3. thanks once again - I had downloaded an out of date synscan manual - now have version 4 WITH daytime align - no more confusion !
  4. I want to observe the moon with a Skywatcher mount/Syncscan handset and your algorithm sounds close to what I want. Questions 0) what is your software version ? 1) point the mount north ? Is this just to level the mount N/S ? 2) level again - is this in the E/W direction ? What is PST - Power Supply Termninal ? 5) ..sun->moon... ? ...sun->moon... centre of eyepiece ? What about planets ? thanks in advance ...
  5. I have just purchased a Skywatcher AZ/EQ 5 GT mount to carry a C8 SCT OTA or a Skywatcher 127mm Mak to use in alt/az mode for lunar work. Can anyone suggest a method of setting up the mount for lunar tracking in alt/az mode without star alignment ? The handset instruction manual I just downloaded makes no mention of alignment possibilities other than 1 or 2 star methods. I have been using celestron kit with a solar system align option where you simply enter observatory position, time and date etc with lunar rate tracking, centre the moon in the eyepiece, press align and off you go ...
  6. contrary to my last post - more questions. I purchased the mount from FLO yesterday and am looking forwards to using it. Prior to its arrival I have been reading on-line manuals and am concerned that the Skyscan manual I have located (AZ goto telescope instruction manual) does not mention 'daylight observation' under which you say that lunar alignment is mentioned. Is the manual out of date or can I expect the feature to be present in my new Skyscan hanset ?
  7. A final question concerning the mount - how does the head fit onto the tripod ? is there a single bolt ? ps I also use the ZWO 290mm - with an IR pass filter - nice camera !
  8. thanks again. Is the mount in your photo a standard one ? or is it on a non-standard tripod - the commercial photos I have seen have a steel tripod. (Do you happen to know its height? As a separate matter, what is the telescope ? A 6 inch Mak ? is the carry handle an extra ?
  9. thank you for the information. I can't use equatorial mounts because I can only observe out of a flat window and theres no room. I can't do deep sky because I am in a light polluted town and I also have AMD eye problems - no central vision. I can only use a CCD image on a computer screen. I used to be a fanatical deep sky observer many years ago (mad on galaxy clusters). I'm glad to hear that the mount now has a solar system align option - is it standard or do you have to update the supplied software ?
  10. I am considering buying a Skywatcher al/az+eq mount to use in alt az mode for lunar CCD photography. I currently have a celestron 11 CDC and a celestron 8 on a nexstar evo mount. I can use both these telescopes with the celestron 'solar system align' and sharp cap for short (~10 sec 300-500 frame) captures. I want to replace the nexstar evo mount for the C8 with a sturdier Skywatcher AZ-EQ 5GT mount BUT - 1) the altz/az option is supposed to be 'for visual use'. Does this mean its tracking in lunar rate/alt-az mode is very poor ? 2) I am confused about 'alignment' (is this only necessary to accurately access the database of interesting object positions?) The skywatcher mount does not have solar system align - but it does have lunar rate tracking in alt-az mode. If I align on any random stars in lunar rate+alt-az mode with the moon centred in the telscope will the mount then track the moon? If not ,is there another way to track the moon ?
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