It basically uses a telescope with a CCD. The missile will basically aim the telescope at the expected location of the selected star, analyze the location of it and surrounding stars in the CCD, and compute an error, which is then fed to the guidance unit. John -----Original Message----- From: Douglas Wood [mailto:dbwood@KC.RR.COM] Sent: Thursday, February 08, 2001 12:38 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [OT]: How to knock a missile out of the sky...? Dumb question #1: How does the missile "see" the stars? Douglas Wood Software Engineer dbwood@kc.rr.com Home of the EPICIS Development System for the PIC and SX http://www.piclist.com/techref/member/DW--RA4 ----- Original Message ----- From: "O'Reilly John E NORC" To: Sent: Thursday, February 08, 2001 10:54 AM Subject: Re: [OT]: How to knock a missile out of the sky...? > > Missiles that are only going to be fired on cloudless nights can > > take star sightings. > > > They take the star sighting after they leave the atmosphere to correct for > errors in their inertial nav. > > John > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.