Umbau auf server

2026-07-13 20:00:07 +02:00
parent 97357a88e0
commit 3193397dc7
1036 changed files with 365042 additions and 3 deletions
@@ -0,0 +1,33 @@
+from skyfield.api import load
+from skyfield.magnitudelib import planetary_magnitude
+
+def test_magnitudes():
+    ts = load.timescale()
+    #t = ts.utc(1995, 5, 22)  # Rings edge-on from Earth.
+    t = ts.utc(2021, 10, 4)
+    eph = load('de421.bsp')
+    earth = eph['earth']
+    names = [
+        'mercury', 'venus', 'mars', 'jupiter barycenter',
+        'saturn barycenter', 'uranus barycenter', 'neptune barycenter',
+    ]
+    e = earth.at(t)
+    positions = [e.observe(eph[name]) for name in names]
+    magnitudes = [planetary_magnitude(position) for position in positions]
+    assert ['%.3f' % m for m in magnitudes] == [
+        '2.393', '-4.278', '1.592', '-2.693', '0.508', '5.701', '7.690',
+    ]
+
+    t = ts.tt_jd([t.tt, t.tt])
+    e = earth.at(t)
+    positions = [e.observe(eph[name]) for name in names]
+    magnitudes = [planetary_magnitude(position) for position in positions]
+    assert [['%.3f' % m for m in mm] for mm in magnitudes] == [
+        ['2.393', '2.393'],
+        ['-4.278', '-4.278'],
+        ['1.592', '1.592'],
+        ['-2.693', '-2.693'],
+        ['0.508', '0.508'],
+        ['5.701', '5.701'],
+        ['7.690', '7.690'],
+    ]