if you are going to take a 20 min exposure - the mount rotates at 1 deg/4 min - so the mount travels 5 deg (or 0.087 radians). If you are 5 arc-min from the...
A thorough analysis of this is covered in Covington: Astrophotography for the Amateur, Cambridge UP. Although written in the film age, it still has a lot of...
I'll probably do a Doh! when I get the answer, but AP has mounts AP600, AP900, AP1200, AP 1600 etc. What is the significance of these numbers? Do they relate...
Philip, I have enjoyed the discussion here and thought I would add a different approach. I use my CCD with MAXIM DL and set the gain to zero (so there is no...
In a message dated 8/16/2012 3:15:07 PM Central Daylight Time, ... You have never slewed from one side of the Moon to the other in just a few seconds? Rolando ...
They're are just good sounding names, I am sure will be the answer. A bit of marketing... Try going through your household and thinking of all the product...
Hi Marj, Unfortunately the issue is not the power supply. I purchased a variable regulated power supply and set it to 15v and 10a, and still the keypad is...
Well, my 900GTO arrived this morning. So did the clouds. It's really impressive seen in real life. Something that photographs just don't convey. Geoff...
What makes the new polar scope more accurate then the older PASILL4? Does it have a longer focal length that allows the location of Polaris to be more precise?...
Another question : To have the proper orientation of the PASILL4, it was necessary to use two other stars next to the Polaris. It was not easy to find out...
In a message dated 8/16/2012 4:41:23 PM Central Daylight Time, ... OMO, is that for real?? Rolando [Non-text portions of this message have been removed]...
In a message dated 8/17/2012 9:58:04 AM Central Daylight Time, ... The new polar scope does not use other stars in the field, only Polaris. Vignetting is no...
In a message dated 8/17/2012 12:09:08 PM Central Daylight Time, ... It has a clock dial etched into the reticle. The idea then is to place Polaris on the...
Thats seems so obviously simple I had a "Duh" moment! Chris ... From: chris1011@... To: ap-gto@yahoogroups.com Sent: Friday, August 17, 2012 10:53:17 AM ...
In a message dated 8/17/2012 5:08:08 PM Central Daylight Time, ... We are planning to do this, yes. However, there are also a number of applications already...
It looks like any planetarium software that has capability of showing the hour angles will work. I have Stellarium software and just found out this software...
I finally had a chance to use my new Mach 1 (which I got new about a month ago) at a dark site. After a quick polar alignment I started tracking using a F/6...
The skywatcher keypad provides the user with the hour angle to place the opening in which you center Polaris. A couple apps that provide this as well are...
