Use a Handheld GPS Receiver with Your
CGE, CGE Pro, CGEM, AS-GT, LCM, SLT or "i" Series Telescope
Several models of computerized telescopes from Celestron are "GPS-ready".
By connecting an optional GPS receiver the user is alleviated from the chore
of determining and entering the date, time, longitude and latitude.
Additionally, GPS time is highly accurate, especially useful if you use the
hibernate feature on your scope. But, the only GPS receiver compatible
with Celestron scopes is Celestron's own CN-16 module. Unfortunately
it is rather expensive ($200 USD), and can only be used with a Celestron
scope - it is not useful when hiking or for other activities.
|All that just changed. Earthshine
started shipping their StarDate GPS Adapter in August 2005. This
adapter connects almost any NMEA-standard GPS receiver to the AUX port
on many Celestron mounts. The CGE, CGE Pro, CGEM, SLT and "i" series telescopes
include an AUX port standard while Celestron's Auxiliary Port Accessory
Kit (part number 93965) is required for the LCM and AS-GT series.
The StarDate GPS Adapter sells for $80. Full-function handheld
GPS receivers can be had for under $100 (be sure it has an RS-232 option
and the cable to connect to a PC). Thus the cost can be less than
the CN-16, even if you need to purchase a GPS receiver. As a plus,
you will then have a GPS receiver that can be used for other activities
such as hiking and boating.
Click for Larger Image
Full details, including the user's manual, are available at Earthshine's web