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Cornelius Varley

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About Cornelius Varley

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  1. I'm not a fan of multi voltage adapters for powering mounts and without knowing the full specification I am reluctant to recommend it.
  2. It might be coma, but it might also be the result of using an eyepiece in the image path. Have you tried imaging the same subject without the zoom lens ?
  3. Celestron make two AZ mounts. One of them is probably the same as the AZ3, the other looks a little lightweight (claimed payload 10lbs)
  4. Whether the AZ3 is suitable will depend on the telescope(s) you intend to use it with. Also the AZ4 mount has a dovetail mount as standard so no need to purchase various adapters. The AZ4 also uses the same tripod as the HEQ5.
  5. This one
  6. I think Skywatcher recommend at least 2amps for the NEQ6, even more is better.
  7. If the psu can only supply 600ma then the answer is no, it won't work. The NEQ6 requires more amps than your psu can supply so will fail to operate when slewing. The psu probably does not have a regulated output so you might find that when put under load the voltage output could increase and damage the electronics on the mount. One more thing that suggests to me that the psu is unsuitable is that that they quote a mAh capacity for the psu. Power supplies are rated in milliamps (mA) or amps (A) and rechargeable battery capacities are quotes in amp hours or milliamp hours, Ah or mAh. Obviously they don't know what they are talking about. Mounts are not generally supplied with a psu.
  8. Assuming he is looking west and he sees it just after sunset, it will be Venus.
  9. The dobsonian version of the SW200 has a longer focal length (1200mm) compared to the version sold on equatorial mounts (1000mm), so the tube is about 200mm longer.
  10. Assuming voltage and amps are correct, the main thing to check with the PSU is that it has a regulated output. Unregulated PSUs may cause damage to the electronics of the mount.
  11. The EQ Synscan mount has always done this, (automatically slewed to the first star) only the Alt-az mounts require manual movement to this first star because the eq mount starts from a known start point (the home position) so roughly knows where the first star is based upon the info inputted into the handset. The Synscan Alt-az goto can start from any position so requires manual input to the first star. The initial alignment star for the alt-az mount is effectively the home position for the mount, all the subsequent alignment slews are then controlled by the handset. In the early versions of the alt-az firmware you did need to start with the mount level and north but this was dropped many versions ago.
  12. Try this thread
  13. The eq mount does slew to the first star using the goto, based upon the info inputted into the handset. No manual input is needed until the mounts stops slewing. The user then centres the star in the eyepiece, either by using the handset or releasing the clutches and manually adjust the mount and then relock the clutches.
  14. The planets suite is based upon astrology not astronomy.
  15. The latest version of the polarscope doesn't have the etchings, just the small circle which is positioned by unlocking the RA axis and rotating the mount in accordance to where the handset indicates where Polaris is in the polarscope. If the mount is not slewing to the correct location first ensure you are inputting all the correct info into the handset and also make sure that you are starting from the home position before starting the star alignment routine.