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Rozhen Night Plan

Up to ten targets, one night: each gets its good/marginal/poor windows (darkness × altitude × Moon × clouds, as on the single-target page), then the night is handed out five minutes at a time to whichever target is best — with hysteresis, so you get a few solid blocks of at least 30 minutes, not a flicker. Targets that never win a block are listed with the reason.

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Night of Friday, 09 October 2026 · astronomical night 20:21 → 05:55 (9.55 h) · Moon 1% (new moon) · weather: forecast

M31M31 18:45–00:00: unusableM31 00:00–01:00: marginalM31 01:00–04:00: goodM31 04:00–05:50: marginalM31 05:50–07:00: poorM31 07:00–07:30: unusableobserve M31 01:00–02:00M42M42 18:45–02:00: unusableM42 02:00–02:35: marginalM42 02:35–03:00: goodM42 03:00–06:00: marginalM42 06:00–07:00: poorM42 07:00–07:30: unusableobserve M42 04:45–06:00M45M45 18:45–00:00: unusableM45 00:00–01:00: marginalM45 01:00–04:00: goodM45 04:00–06:00: marginalM45 06:00–07:00: poorM45 07:00–07:30: unusableobserve M45 02:00–03:00NGC 7000NGC 7000 18:45–00:00: unusableNGC 7000 00:00–01:00: marginalNGC 7000 01:00–03:00: goodNGC 7000 03:00–03:55: marginalNGC 7000 03:55–04:00: poorNGC 7000 04:00–07:30: unusableobserve NGC 7000 03:00–03:45V1057 CygV1057 Cyg 18:45–00:00: unusableV1057 Cyg 00:00–01:00: marginalV1057 Cyg 01:00–03:00: goodV1057 Cyg 03:00–03:55: marginalV1057 Cyg 03:55–04:00: poorV1057 Cyg 04:00–07:30: unusableobserve V1057 Cyg 00:00–01:00M33M33 18:45–00:00: unusableM33 00:00–01:00: marginalM33 01:00–04:00: goodM33 04:00–06:00: marginalM33 06:00–07:00: poorM33 07:00–07:30: unusableobserve M33 03:45–04:45scheduleV1057 CygM31M45NGC 7000M33M4220:0022:0000:0002:0004:0006:00

Faded bands: each target's own windows (green good, amber marginal, pink poor). Dark blue: the schedule. Grey columns: twilight.

Schedule

localtargethoursmean quality
18:45–00:00 — nothing worth pointing at — 5.25
00:00–01:00 V1057 Cyg 1.0 0.47
01:00–02:00 M31 1.0 1.0
02:00–03:00 M45 1.0 0.94
03:00–03:45 NGC 7000 0.75 0.44
03:45–04:45 M33 1.0 0.52
04:45–06:00 M42 1.25 0.33
06:00–07:30 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 40 01:00–04:00 (good) 89.6° at 00:50 144.4° 1.0
M42 Great Orion Nebula 77 44 02:35–03:00 (good) 42.9° at 05:45 101.3° 1.25
M45 Seven Sisters 100 54 01:00–04:00 (good) 72.5° at 03:55 128.0° 1.0
NGC 7000 North America Nebula 100 35 01:00–03:00 (good) 87.2° at 21:05 121.3° 0.75
V1057 Cyg 100 35 01:00–03:00 (good) 87.3° at 21:05 121.4° 1.0
M33 Triangulum Pinwheel 100 42 01:00–04:00 (good) 79.1° at 01:40 150.3° 1.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-09"

targets: names or RA Dec, separated by commas, semicolons or newlines, at most ten. The response carries targets[] (score, verdict, best_window, windows, transit, moon_separation), schedule[] (blocks with target, start/end in UTC and local, hours, mean_quality; target: null is idle time), unscheduled[] with a why, forecast_source, warnings[]. Missing targets → 400 {"error", "code": "targets_missing"}.