knightwareKnightware StoreSite SearchAbout the CompanyKnightware Home

Using Deep-Sky Planner 8 with Cartes du Ciel 4

If Cartes du Ciel 4 (CdC4) is not started before performing the Show Chart command in Deep-Sky Planner, Deep-Sky Planner will attempt to start it. If there is a problem with Show Chart and CdC4, the problem is likely to be one of the following:

Deep-Sky Planner message


Deep-Sky Planner could not connect to Cartes du Ciel 4. Cartes du Ciel 4 must be running to accept the Show Chart command.

CdC4 is not installed, or Deep-Sky Planner could not find it.

  • Make sure CdC4 is installed properly for the Windows account from which you run Deep-Sky Planner.
  • Start CdC4 before doing Show Chart.

Cartes du Ciel 4 did not accept the Show Chart command

Deep-Sky Planner cannot connect with CdC4, or CdC4 did not respond as expected.

  • System security might have prevented communication. Make sure your firewall permits TCP communication between CdC4 and Deep-Sky Planner.
  • CdC4 did not understand a command sent by Deep-Sky Planner, or CdC4 understood commands sent by Deep-Sky Planner but returned an unexpected response. Be sure to run an updated version of CdC4.
  • The connection between CdC4 and Deep-Sky Planner dropped while the Show Chart command was being processed. This is highly unlikely and may indicate an unstable network connection between the two programs, a power sag or failure, or a socket communication timeout.