John Duchek's Page -Welcome

I am redoing this site, so consider it under construction for now. 

Screenshot of eyepiece selection software
Eyepiece selection software calculates the % light lost for your pupil size and various telescope/eyepiece combinations.  This software is available on this site with versions for Windows, Linux, and Mac for free.  Also available is a pdf explaining how you can turn your 8" telescope into a 3" telescope with the wrong combination. 
 Links to weatherstations:
Carrizozo/Nogal, NM Weatherstation (Weather Underground)
Carrizozo/Nogal, NM Weatherstation (NOAA)
Carrizozo/Nogal, NM Allsky Cam

Concord/Sunset Hills, MO Weatherstation (Weather Underground)

Links to Linux OS Astronomy Versions:
Astronomy Linux - An amazing amount of linux astronomy
software, bootable from CD, or HD installable

Distro Astro - Linux Astronomy Software with some
 preinstalled windows software thru 'wine'

John's Pictures (on Flickr)-main page:
The Lunar 100 (all but 2, so the Lunar 98)
Hi Resolution wallpaper (1900x1200 approx)
2014 Timelapse, 2015 Timelapse, 2016 Timelapse, 2017 Timelapse
2017-Moon
2013-Moon

Projects:
GPS video inserter project
3D Printed Newtonian OTAs


 


 Old talk slide downloads - Over the years I have given a few talks.  Now you can download the slides that went with them as a LibreOffice Impress file.