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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 Tuesday, 30 October 2040 · astronomical night 18:51 → 05:18 (10.45 h) · Moon 24% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:20: quality 0.1M31 18:20–18:25: quality 0.4M31 18:25–18:55: quality 0.5M31 18:55–19:05: quality 0.9M31 19:05–01:55: quality 1.0M31 01:55–03:00: quality 0.9M31 03:00–04:10: quality 0.8M31 04:10–04:25: quality 0.7M31 04:25–04:40: quality 0.6M31 04:40–05:00: quality 0.5M31 05:00–05:10: quality 0.4observe M31 22:20–00:20M42M42 23:35–23:40: quality 0.4M42 23:40–23:55: quality 0.5M42 23:55–00:10: quality 0.6M42 00:10–00:30: quality 0.7M42 00:30–01:40: quality 0.8M42 01:40–02:05: quality 0.9M42 02:05–05:20: quality 0.8M42 05:20–05:55: quality 0.4M42 05:55–06:25: quality 0.1observe M42 04:20–05:55M45M45 19:55–20:05: quality 0.4M45 20:05–20:20: quality 0.5M45 20:20–20:30: quality 0.6M45 20:30–20:45: quality 0.7M45 20:45–21:30: quality 0.8M45 21:30–22:55: quality 0.9M45 22:55–03:35: quality 1.0M45 03:35–04:55: quality 0.9M45 04:55–05:20: quality 0.8M45 05:20–05:55: quality 0.4M45 05:55–06:25: quality 0.1observe M45 02:20–04:20NGC 7000NGC 7000 17:50–18:20: quality 0.2NGC 7000 18:20–18:55: quality 0.5NGC 7000 18:55–22:15: quality 1.0NGC 7000 22:15–23:40: quality 0.9NGC 7000 23:40–00:40: quality 0.8NGC 7000 00:40–00:55: quality 0.7NGC 7000 00:55–01:10: quality 0.6NGC 7000 01:10–01:30: quality 0.5NGC 7000 01:30–01:40: quality 0.4observe NGC 7000 18:20–20:20V1057 CygV1057 Cyg 17:50–18:20: quality 0.2V1057 Cyg 18:20–18:55: quality 0.5V1057 Cyg 18:55–22:15: quality 1.0V1057 Cyg 22:15–23:40: quality 0.9V1057 Cyg 23:40–00:40: quality 0.8V1057 Cyg 00:40–00:55: quality 0.7V1057 Cyg 00:55–01:10: quality 0.6V1057 Cyg 01:10–01:30: quality 0.5V1057 Cyg 01:30–01:40: quality 0.4observe V1057 Cyg 20:20–22:20M33M33 17:50–18:20: quality 0.1M33 18:20–18:55: quality 0.4M33 18:55–19:00: quality 0.8M33 19:00–20:20: quality 0.9M33 20:20–02:05: quality 1.0M33 02:05–03:25: quality 0.9M33 03:25–04:25: quality 0.8M33 04:25–04:40: quality 0.7M33 04:40–04:55: quality 0.6M33 04:55–05:10: quality 0.5M33 05:10–05:20: quality 0.4observe M33 00:20–02:20scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

Each row is the target's quality through the night, white → amber → green for 0 → 0.3 → 0.6 → 1 (the same thresholds as poor / marginal / good). Dark blue: the schedule. Grey columns: twilight.  Download: schedule CSV · targets CSV · JSON

Schedule

localtargethoursmean quality
17:15–18:20 — nothing worth pointing at — 1.08
18:20–20:20 NGC 7000 2.0 0.85
20:20–22:20 V1057 Cyg 2.0 0.99
22:20–00:20 M31 2.0 1.0
00:20–02:20 M33 2.0 0.99
02:20–04:20 M45 2.0 0.94
04:20–05:55 M42 1.58 0.64
05:55–06:55 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:55–04:35 (good) 89.6° at 22:25 120.7° 2.0
M42 Great Orion Nebula 86 unknown 00:05–05:20 (good) 42.9° at 03:20 81.2° 1.58
M45 Seven Sisters 100 unknown 20:25–05:20 (good) 72.5° at 01:30 99.8° 2.0
NGC 7000 North America Nebula 100 unknown 18:55–01:05 (good) 87.2° at 18:45 117.4° 2.0
V1057 Cyg 100 unknown 18:55–01:05 (good) 87.2° at 18:45 117.5° 2.0
M33 Triangulum Pinwheel 100 unknown 18:55–04:50 (good) 79.2° at 23:20 122.2° 2.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-10-30"

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"}; an unreadable date → 400 {"error", "code": "invalid_date"}.