Eskimue/skyview.astronomiemuseum.de
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Goldener henkel berechnung verbessert

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Eskimue
2026-04-03 16:50:54 +02:00
parent 91f92b814a
commit fc8b491b6a
3 changed files with 124 additions and 9 deletions
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.codex-temp/php-server.err.log
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@@ -902,3 +902,90 @@ Stack trace:
[Fri Apr 3 16:13:22 2026] 127.0.0.1:62960 Accepted
[Fri Apr 3 16:13:31 2026] 127.0.0.1:62960 [200]: GET /monatsvorhersage_old.php?year=2026&month=12
[Fri Apr 3 16:13:31 2026] 127.0.0.1:62960 Closing
[Fri Apr 3 16:19:37 2026] 127.0.0.1:55410 Accepted
[Fri Apr 3 16:19:53 2026] 127.0.0.1:55410 [200]: GET /monatsvorhersage_old.php?year=2026&month=3
[Fri Apr 3 16:19:53 2026] 127.0.0.1:55410 Closing
[Fri Apr 3 16:19:53 2026] 127.0.0.1:52807 Accepted
[Fri Apr 3 16:20:02 2026] 127.0.0.1:52807 [200]: GET /monatsvorhersage_old.php?year=2026&month=10
[Fri Apr 3 16:20:02 2026] 127.0.0.1:52807 Closing
[Fri Apr 3 16:20:24 2026] 127.0.0.1:51409 Accepted
[Fri Apr 3 16:20:33 2026] 127.0.0.1:51409 [200]: GET /monatsvorhersage_old.php?year=2026&month=10
[Fri Apr 3 16:20:33 2026] 127.0.0.1:51409 Closing
[Fri Apr 3 16:20:50 2026] 127.0.0.1:60154 Accepted
[Fri Apr 3 16:21:06 2026] 127.0.0.1:60154 [200]: GET /monatsvorhersage_old.php?year=2026&month=3
[Fri Apr 3 16:21:06 2026] 127.0.0.1:60154 Closing
[Fri Apr 3 16:21:06 2026] 127.0.0.1:51578 Accepted
[Fri Apr 3 16:21:06 2026] 127.0.0.1:64104 Accepted
[Fri Apr 3 16:21:06 2026] 127.0.0.1:51578 [200]: GET /css/style.css
[Fri Apr 3 16:21:06 2026] 127.0.0.1:64104 [200]: GET /js/astronomy.browser.min.js
[Fri Apr 3 16:21:06 2026] 127.0.0.1:51578 Closing
[Fri Apr 3 16:21:06 2026] 127.0.0.1:64104 Closing
[Fri Apr 3 16:21:06 2026] 127.0.0.1:64109 Accepted
[Fri Apr 3 16:21:06 2026] 127.0.0.1:53635 Accepted
[Fri Apr 3 16:21:06 2026] 127.0.0.1:64109 [200]: GET /images/star16x16.png
[Fri Apr 3 16:21:06 2026] 127.0.0.1:53635 [200]: GET /images/star16x16_rays.png
[Fri Apr 3 16:21:06 2026] 127.0.0.1:64109 Closing
[Fri Apr 3 16:21:06 2026] 127.0.0.1:53635 Closing
[Fri Apr 3 16:21:06 2026] 127.0.0.1:52555 Accepted
[Fri Apr 3 16:21:08 2026] 127.0.0.1:52555 [200]: GET /favicon.ico
[Fri Apr 3 16:21:08 2026] 127.0.0.1:52555 Closing
[Fri Apr 3 16:22:29 2026] 127.0.0.1:53891 Accepted
[Fri Apr 3 16:22:38 2026] 127.0.0.1:53891 [200]: GET /monatsvorhersage_old.php?year=2026&month=9
[Fri Apr 3 16:22:38 2026] 127.0.0.1:53891 Closing
[Fri Apr 3 16:22:38 2026] 127.0.0.1:52655 Accepted
[Fri Apr 3 16:22:38 2026] 127.0.0.1:52655 [200]: GET /css/style.css
[Fri Apr 3 16:22:38 2026] 127.0.0.1:52655 Closing
[Fri Apr 3 16:22:38 2026] 127.0.0.1:52780 Accepted
[Fri Apr 3 16:22:38 2026] 127.0.0.1:52780 [200]: GET /js/astronomy.browser.min.js
[Fri Apr 3 16:22:38 2026] 127.0.0.1:52780 Closing
[Fri Apr 3 16:22:38 2026] 127.0.0.1:55211 Accepted
[Fri Apr 3 16:22:38 2026] 127.0.0.1:55211 [200]: GET /images/star16x16.png
[Fri Apr 3 16:22:38 2026] 127.0.0.1:59860 Accepted
[Fri Apr 3 16:22:38 2026] 127.0.0.1:59860 [200]: GET /images/star16x16_rays.png
[Fri Apr 3 16:22:38 2026] 127.0.0.1:55211 Closing
[Fri Apr 3 16:22:38 2026] 127.0.0.1:59860 Closing
[Fri Apr 3 16:22:38 2026] 127.0.0.1:55583 Accepted
[Fri Apr 3 16:22:40 2026] 127.0.0.1:55583 [200]: GET /favicon.ico
[Fri Apr 3 16:22:40 2026] 127.0.0.1:55583 Closing
[Fri Apr 3 16:22:58 2026] 127.0.0.1:52476 Accepted
[Fri Apr 3 16:23:08 2026] 127.0.0.1:52476 [200]: GET /monatsvorhersage_old.php?year=2026&month=10
[Fri Apr 3 16:23:08 2026] 127.0.0.1:52476 Closing
[Fri Apr 3 16:23:08 2026] 127.0.0.1:60654 Accepted
[Fri Apr 3 16:23:08 2026] 127.0.0.1:64290 Accepted
[Fri Apr 3 16:23:08 2026] 127.0.0.1:60654 [200]: GET /css/style.css
[Fri Apr 3 16:23:08 2026] 127.0.0.1:64290 [200]: GET /js/astronomy.browser.min.js
[Fri Apr 3 16:23:08 2026] 127.0.0.1:60654 Closing
[Fri Apr 3 16:23:08 2026] 127.0.0.1:64290 Closing
[Fri Apr 3 16:23:08 2026] 127.0.0.1:59075 Accepted
[Fri Apr 3 16:23:08 2026] 127.0.0.1:49458 Accepted
[Fri Apr 3 16:23:08 2026] 127.0.0.1:59075 [200]: GET /images/star16x16.png
[Fri Apr 3 16:23:08 2026] 127.0.0.1:49458 [200]: GET /images/star16x16_rays.png
[Fri Apr 3 16:23:08 2026] 127.0.0.1:59075 Closing
[Fri Apr 3 16:23:08 2026] 127.0.0.1:49458 Closing
[Fri Apr 3 16:23:08 2026] 127.0.0.1:61695 Accepted
[Fri Apr 3 16:23:09 2026] 127.0.0.1:61695 [200]: GET /favicon.ico
[Fri Apr 3 16:23:09 2026] 127.0.0.1:61695 Closing
[Fri Apr 3 16:24:34 2026] 127.0.0.1:57467 Accepted
[Fri Apr 3 16:24:50 2026] 127.0.0.1:57467 [200]: GET /monatsvorhersage_old.php?year=2026&month=3
[Fri Apr 3 16:24:50 2026] 127.0.0.1:57467 Closing
[Fri Apr 3 16:24:50 2026] 127.0.0.1:58591 Accepted
[Fri Apr 3 16:25:00 2026] 127.0.0.1:58591 [200]: GET /monatsvorhersage_old.php?year=2026&month=10
[Fri Apr 3 16:25:00 2026] 127.0.0.1:58591 Closing
[Fri Apr 3 16:25:00 2026] 127.0.0.1:54076 Accepted
[Fri Apr 3 16:25:00 2026] 127.0.0.1:61845 Accepted
[Fri Apr 3 16:25:10 2026] 127.0.0.1:54076 [200]: GET /monatsvorhersage_old.php?year=2026&month=10
[Fri Apr 3 16:25:10 2026] 127.0.0.1:54076 Closing
[Fri Apr 3 16:25:10 2026] 127.0.0.1:60099 Accepted
[Fri Apr 3 16:25:10 2026] 127.0.0.1:61845 [200]: GET /css/style.css
[Fri Apr 3 16:25:10 2026] 127.0.0.1:60099 [200]: GET /js/astronomy.browser.min.js
[Fri Apr 3 16:25:10 2026] 127.0.0.1:61845 Closing
[Fri Apr 3 16:25:10 2026] 127.0.0.1:60099 Closing
[Fri Apr 3 16:25:10 2026] 127.0.0.1:57577 Accepted
[Fri Apr 3 16:25:10 2026] 127.0.0.1:57577 [200]: GET /images/star16x16.png
[Fri Apr 3 16:25:10 2026] 127.0.0.1:58971 Accepted
[Fri Apr 3 16:25:10 2026] 127.0.0.1:58971 [200]: GET /images/star16x16_rays.png
[Fri Apr 3 16:25:10 2026] 127.0.0.1:57577 Closing
[Fri Apr 3 16:25:10 2026] 127.0.0.1:58971 Closing
[Fri Apr 3 16:25:10 2026] 127.0.0.1:65351 Accepted
[Fri Apr 3 16:25:12 2026] 127.0.0.1:65351 [200]: GET /favicon.ico
[Fri Apr 3 16:25:12 2026] 127.0.0.1:65351 Closing
public/py/__pycache__/api.cpython-314.pyc
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public/py/api.py
+37 -9
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@@ -494,19 +494,47 @@ def action_golden_handle_for_month(args: list[str]) -> dict:
else:
local_end = datetime(year, month + 1, 1, 0, 0, 0, tzinfo=tz)
# Approximate the Golden Handle geometrically by the effective selenographic
# colongitude over Montes Jura/Sinus Iridum (roughly 44 N, 36 W),
# corrected by libration. Empirically, the best-fit target shifts with
# libration in latitude by several tenths of a degree, i.e. by hours.
def target_colongitude(elat_deg: float) -> float:
return 33.385316705346064 + 0.11176238230626076 * elat_deg + 0.0734267792065295 * elat_deg * elat_deg
# Minimal physical model for the Golden Handle:
# solve the time when the floor of Sinus Iridum is still below sunrise
# by half of the topographic advance angle of the Jura rim.
moon_radius_km = 1737.4
floor_latitude_deg = 42.0
floor_longitude_west_deg = 35.5
relief_height_difference_km = 1.18
def golden_handle_metric(dt_utc: datetime) -> float:
def relief_advance_angle_deg() -> float:
return math.degrees(
math.acos(moon_radius_km / (moon_radius_km + relief_height_difference_km))
)
def solar_selenographic_coordinates(dt_utc: datetime) -> tuple[float, float]:
time_value = dt_to_time(dt_utc)
phase_deg = normalize_degrees(astronomy.MoonPhase(time_value))
libration = astronomy.Libration(time_value)
effective_colongitude = normalize_degrees(phase_deg - 90.0 - float(libration.elon))
return normalize_signed_degrees(effective_colongitude - target_colongitude(float(libration.elat)))
axis_latitudes = calculate_moon_axis_latitudes(time_value)
# Approximate selenographic solar longitude from colongitude using
# west-positive longitude for the lunar surface model.
colongitude_deg = normalize_degrees(phase_deg - 90.0 - float(libration.elon))
solar_longitude_west_deg = normalize_signed_degrees(colongitude_deg - 90.0)
solar_latitude_deg = float(axis_latitudes["subsolar_latitude"])
return solar_longitude_west_deg, solar_latitude_deg
def floor_solar_altitude_deg(dt_utc: datetime) -> float:
solar_longitude_west_deg, solar_latitude_deg = solar_selenographic_coordinates(dt_utc)
phi = math.radians(floor_latitude_deg)
lam_f = math.radians(floor_longitude_west_deg)
lam_s = math.radians(solar_longitude_west_deg)
b_s = math.radians(solar_latitude_deg)
x = (
math.sin(phi) * math.sin(b_s)
+ math.cos(phi) * math.cos(b_s) * math.cos(lam_f - lam_s)
)
x = max(-1.0, min(1.0, x))
return math.degrees(math.asin(x))
def golden_handle_metric(dt_utc: datetime) -> float:
return floor_solar_altitude_deg(dt_utc) + relief_advance_angle_deg() / 2.0
def refine_peak_time(left_utc: datetime, right_utc: datetime) -> datetime:
left = left_utc