To determine which version of the Autostar system you have, follow these steps:
Model Information: Start by checking the model number and any other identification numbers located on the device. Common Autostar models include the #494, #497, and Audiostar #497EP.
Manual and Packaging: If you have the original manual or packaging, it often states the model or version number of your Autostar.
Device Boot-Up: Power on the Autostar controller. During the initial startup sequence, the display typically shows the model type and firmware version briefly.
Device Appearance: Compare the physical characteristics of your Autostar controller with images and descriptions from the manufacturer’s website or user forums. Different models might have variances in button layout and screen size.
Firmware Version: Access the menu on your Autostar:
Navigate to “Setup” > “Statistics.”
Here, you should find the firmware version number.
Once you have the firmware number, you can lookup which versions correspond to which Autostar model online.
Consult Manufacturer or Community: If you’re still unsure, contact the manufacturer with your device details or post on astronomy forums where knowledgeable users might offer assistance.

This detailed approach should assist you in identifying your Autostar’s version.