Mobile Apps Just Testing Experimental Mobile Apps by Jay Tanner - 2024 Some apps use NASA/JPL computational resources in the background. -About-These-Apps- 20000-Year-Moon-Phase-Calculator 3-Month-Delta-T-Table Current-Moon-Phase-and-Distance Distance-Between-Two-Stars-or-Bodies-Calculator JDate-JDNum-and-Delta-T Julian-Date-and-JD-Number Lunar-Perigees-and-Apogees Mercury-Perigee-Apogee-Calculator combined-stellar-magnitudes-calculator