About myCSC
Carry your favourite Clear Sky Charts (CSC) in your pocket! Amateur astronomers in North America monitor local sky conditions using the CSC web sites which provide a very detailed 48 hour color coded observing forecast...
Carry your favourite Clear Sky Charts (CSC) in your pocket! Amateur astronomers in North America monitor local sky conditions using the CSC web sites which provide a very detailed 48 hour color coded observing forecast chart for cloud cover, transparency, seeing and other factors. This app contains a database of more than 6000 forecast locations in Canada, the USA and Mexico and can check for new updates. The launch screen monitors up to four or five favourite observing locations. Each square represents one hour and the colors vary from dark blue (excellent) to white (very poor) conditions for observing. A red line indicates local midnight and there is a last updated timestamp. Tapping on any preview chart will open a menu of options that allows you to (i) see a more detailed chart with legend, (ii) map the chart location, (iii) open the CSC web page, (iv) select a different chart location to monitor, (v) remove unwanted charts or (vi) share one of your charts via email, text message or social media. Locations Services can help you find nearby CSC locations when you travel. Refer to Attilla Danko’s excellent CSC web site home page for complete details on interpreting the preview and detailed charts: http://cleardarksky.com/csk A complete PDF user manual is available on my website: http://anythingbinary.com/iphone/myCSC/myCSC iOS User Guide.pdf This app is no longer free. A portion of every copy purchased will go to Attilla Danko to help support the ongoing operation of the Clear Sky Charts site.
Version History Bug fix to stop crashes when a site location is no longer supported on the Clear Sky Charts website. Doing a new installation and chart update will clear the outdated sites from the app database. An error message will display if currently selected locations are removed in future. 2.0.8 05/14/2023 Fixed the Delete Chart option on the menu. Minor home screen adjustment. 2.0.7 05/24/2021 Updated for iOS 13. Implements auto layout to fit all iPhone screen sizes better. Contains latest CSC database. 2.0.6 05/07/2020 Minor release to fix: Screen layouts for devices with 3:2 aspect ratio. Database includes 5228 Clear Sky Chart locations. Pop-up menu on Set Nearby Chart Location so it only displays once. 2.0.4 04/22/2016 Updated analytics component. 64 bit support added. Removed swipe to detailed screen feature as it was often inadvertently triggered when tapping the chart for menu. New option to select nearby CSC charts from a map or a list view. Expanded nearby CSC GPS search area by 4X. 2.0.3 08/20/2015 New sharing feature to post a detailed chart to email, text message, Facebook, Twitter, etc. New myCSC setting option to modify default sharing text string. Site name can be inserted if desired using "{name}" string. Anonymous detailed crash analytics reporting added. Improved network availability checking. Redesigned layout to lock landscape orientation for Detailed Chart and Legend screens. Minor bug fixes and code optimization. Latest CSC database included. A nominal fee is being charged with a portion sponsoring the Clear Sky Charts site maintained by Attilla Danko. 2.0.2 05/08/2015 Added a new legend screen to the detailed chart view. Cosmetic improvements to navigation and status bars. 2.0.1 05/21/2014 Updated for iOS 7 and the 4 inch retina display. Monitor up to five sites on a 4 inch display or four sites on a 3.5 inch display. Delete unnecessary clear sky charts on main screen. Contains the latest chart location database Minor performance improvements. 2.0.0 03/31/2014 Compatible with iOS 6 Requires iOS 4.3 or later 1.0.10 10/03/2012 iOS 5.1 compatability fixes crash during update 1.0.9 06/09/2012 Minor performance improvements, a back button on the integrated CSC site browser and the elimination of ads. 1.0.8 08/18/2011 1.0.7 08/04/2011
Previous Versions
Here you can find the changelog of myCSC since it was posted on our website on 2016-10-03 08:05:51.
The latest version is 2.0.8 and it was updated on 2026-06-23 05:41:39. See below the changes in each version.
myCSC version 2.0.8
Updated At: 2026-06-02
Changes: Version History Bug fix to stop crashes when a site location is no longer supported on the Clear Sky Charts website. Doing a new installation and chart update will clear the outdated sites from the app database. An error message will display if currently selected locations are removed in future. 2.0.8 05/14/2023 Fixed the Delete Chart option on the menu. Minor home screen adjustment. 2.0.7 05/24/2021 Updated for iOS 13. Implements auto layout to fit all iPhone screen sizes better. Contains latest CSC database. 2.0.6 05/07/2020 Minor release to fix:
Screen layouts for devices with 3:2 aspect ratio.
Database includes 5228 Clear Sky Chart locations.
Pop-up menu on Set Nearby Chart Location so it only displays once. 2.0.4 04/22/2016 Updated analytics component.
64 bit support added.
Removed swipe to detailed screen feature as it was often inadvertently triggered when tapping the chart for menu.
New option to select nearby CSC charts from a map or a list view.
Expanded nearby CSC GPS search area by 4X. 2.0.3 08/20/2015 New sharing feature to post a detailed chart to email, text message, Facebook, Twitter, etc.
New myCSC setting option to modify default sharing text string. Site name can be inserted if desired using "{name}" string.
Anonymous detailed crash analytics reporting added.
Improved network availability checking.
Redesigned layout to lock landscape orientation for Detailed Chart and Legend screens.
Minor bug fixes and code optimization.
Latest CSC database included.
A nominal fee is being charged with a portion sponsoring the Clear Sky Charts site maintained by Attilla Danko. 2.0.2 05/08/2015 Added a new legend screen to the detailed chart view.
Cosmetic improvements to navigation and status bars. 2.0.1 05/21/2014 Updated for iOS 7 and the 4 inch retina display.
Monitor up to five sites on a 4 inch display or four sites on a 3.5 inch display.
Delete unnecessary clear sky charts on main screen.
Contains the latest chart location database
Minor performance improvements. 2.0.0 03/31/2014 Compatible with iOS 6
Requires iOS 4.3 or later 1.0.10 10/03/2012 iOS 5.1 compatability
fixes crash during update 1.0.9 06/09/2012 Minor performance improvements, a back button on the integrated CSC site browser and the elimination of ads. 1.0.8 08/18/2011 1.0.7 08/04/2011
myCSC version 2.0.8
Updated At: 2023-05-14
Changes: May 14, 2023
Version 2.0.8
Bug fix to stop crashes when a site location is no longer supported on the Clear Sky Charts website. Doing a new installation and chart update will clear the outdated sites from the app database. An error message will display if currently selected locations are removed in future.
myCSC version 2.0.8
Updated At: 2023-05-14
Changes: Bug fix to stop crashes when a site location is no longer supported on the Clear Sky Charts website. Doing a new installation and chart update will clear the outdated sites from the app database. An error message will display if currently selected locations are removed in future.
myCSC version 2.0.4
Updated At: 2011-08-04
Disclaimer
Official App Store Link
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