Satellitenhimmel angepasst

public/satellitenhimmel.php

@@ -695,6 +695,12 @@ if (!empty($currentLocation) && is_array($currentLocation)) {
           };
         }
 
+        function isPeakVisible(pass) {
+          if (!(pass.peakTime instanceof Date) || Number.isNaN(pass.peakTime.getTime())) return false;
+          if ((pass.peakElevation ?? -1) < 0) return false;
+          return !pass.shadowEntry || pass.peakTime <= pass.shadowEntry.time;
+        }
+
         function buildObservationSummary(satName, pass, visibility) {
           if (visibility.sky.key === 'day') return `${satName} ist bei diesem Überflug tagsüber nicht zu sehen.`;
           const visiblePhase = getVisiblePhase(pass);
@@ -906,6 +912,14 @@ if (!empty($currentLocation) && is_array($currentLocation)) {
             ctx.beginPath(); ctx.arc(endPt.x,endPt.y,3.5,0,Math.PI*2);     ctx.fillStyle=trackColor; ctx.fill();
             drawEndpointLabel(startPt, formatTime(pass.aosTime), trackColor, cx, cy, radius);
             drawEndpointLabel(endPt,   formatTime(pass.losTime), trackColor, cx, cy, radius);
+            if (isPeakVisible(pass)) {
+              const peakPt = projectPoint(pass.peakAzimuth, pass.peakElevation, radius, cx, cy);
+              ctx.beginPath(); ctx.arc(peakPt.x,peakPt.y,4.5,0,Math.PI*2);
+              ctx.fillStyle = trackColor; ctx.fill();
+              ctx.strokeStyle = invertSky ? 'rgba(248,248,244,0.95)' : 'rgba(8,12,20,0.92)';
+              ctx.lineWidth = 1.5; ctx.stroke();
+              drawEndpointLabel(peakPt, formatTime(pass.peakTime), trackColor, cx, cy, radius);
+            }
             if (pass.shadowEntry) {
               const sp = projectPoint(pass.shadowEntry.azimuthDeg, pass.shadowEntry.elevationDeg, radius, cx, cy);
               ctx.beginPath(); ctx.arc(sp.x,sp.y,4,0,Math.PI*2);

todo.md

@@ -1,3 +1,5 @@
+Startseite, DeepSky beobachtungszeit angeben, Astronomische Dämmerung!
+
 # Monatsvorschau TODO
 - Sichtbare ISS-Ueberfluege fuer den Standort ergaenzen
 - Hesiodusstrahl als eigenes Mondlichtphaenomen fuer die Monatsvorschau ergaenzen