(1) The astrometrics of Rigil Kentaurus and Toliman at the start of the Application are replaced with those of the center of mass of the system. In this way, even going back in time by thousands of years, the position uncertainty of both stars remains contained within a few arcseconds, instead of reaching and even exceeding 1 degree.
(2) In the panels on the left of the screen related respectively to the EQT and HOR views, the title now becomes amber in color, to better highlight which one is active.
(3) In the Tools, the old calculation of the Solstices disappears. Now there are 2 new tools. The first calculates the passages of the Moon to its perturbed orbit nodes . The second returns for a given year the times and azimuths of sunrise and sunset of one of the main bodies of the SS. In case of the Moon, you can intercept the maximum and minimum lunistices during the year, comparing them with the height of the Sun. In this way, you can immediately intercept the lunistices that occurred with the sun below the horizon. See Image 01 and 02.
(4) In the Tool that, given a point placed above the local horizon, allows you to show whether it is the object of a possible alignment in a given year, the circle of analysis is now shown, 1 degree for the planets and 4 degrees for the stars.
(5) Added the T7 graphic terminal for the monthly chart of geocentric lunar librations. See Image 03.
(6) Following a software update, it is now possible to check if new locations have been inserted and possibly proceed to copy them onto your local file.
(7) The OPTIONS button disappears from the main window. Now access to PREFERENCES is managed individually for each section from the Main Menu. This eliminates the graphic constraints that were there for the addition of new elements in the various sections.
(8) The application will be compiled from this version with the new version (Lazarus 3.4) of the development environment.
(9) New Tool. Analysis of the duration in minutes of dawns (or twilights) in a given year for a certain location. Sites near the equator have shorter twilights, which increase as the latitude (in modulus, regardless of the sign) grows. From the polar circles upwards there are situations where the Sun never rises or never sets for a certain period. From left to right there are the 3 values in minutes of civil, nautical and astronomical sunrises or twilights. Here we are in Loughcarn, Ireland. In this period the astronomical twilight does not complete (in fact the Sun only goes down to -13°, without reaching -18°), so technically it can be said that there will be no night. The sky will maintain a certain brightness after which there will be a new sunrise. Image 4.
