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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, 29 September 2028 · astronomical night 20:38 → 05:44 (9.11 h) · Moon 88% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:35–20:10: quality 0.1M31 20:10–20:40: quality 0.3M31 20:40–21:10: quality 0.5M31 21:10–01:10: quality 0.6M31 01:10–03:50: quality 0.7M31 03:50–04:05: quality 0.8M31 04:05–04:55: quality 1.0M31 04:55–05:45: quality 0.9M31 05:45–06:20: quality 0.4M31 06:20–06:50: quality 0.1observe M31 22:15–23:55M42M42 02:35–02:50: quality 0.4M42 02:50–03:10: quality 0.5M42 03:10–03:25: quality 0.6M42 03:25–04:05: quality 0.7M42 04:05–04:40: quality 0.8M42 04:40–05:45: quality 0.9M42 05:45–06:20: quality 0.4M42 06:20–06:50: quality 0.1observe M42 04:30–06:20M45M45 23:00–23:05: quality 0.3M45 23:05–23:25: quality 0.4M45 23:25–23:45: quality 0.5M45 23:45–00:30: quality 0.6M45 00:30–01:55: quality 0.7M45 01:55–04:05: quality 0.8M45 04:05–05:45: quality 1.0M45 05:45–06:20: quality 0.5M45 06:20–06:30: quality 0.2M45 06:30–06:50: quality 0.1observe M45 01:35–03:15NGC 7000NGC 7000 19:35–20:10: quality 0.1NGC 7000 20:10–20:40: quality 0.3NGC 7000 20:40–03:35: quality 0.6NGC 7000 03:35–04:00: quality 0.5NGC 7000 04:00–04:05: quality 0.4NGC 7000 04:05–04:15: quality 0.6NGC 7000 04:15–04:30: quality 0.5NGC 7000 04:30–04:40: quality 0.4observe NGC 7000 20:10–20:15observe NGC 7000 20:40–22:15V1057 CygV1057 Cyg 19:35–20:10: quality 0.1V1057 Cyg 20:10–20:40: quality 0.3V1057 Cyg 20:40–03:35: quality 0.6V1057 Cyg 03:35–04:00: quality 0.5V1057 Cyg 04:00–04:05: quality 0.4V1057 Cyg 04:05–04:15: quality 0.6V1057 Cyg 04:15–04:30: quality 0.5V1057 Cyg 04:30–04:40: quality 0.4observe V1057 Cyg 03:15–04:30M33M33 20:25–20:35: quality 0.1M33 20:35–20:40: quality 0.2M33 20:40–20:45: quality 0.3M33 20:45–21:10: quality 0.4M33 21:10–22:25: quality 0.5M33 22:25–00:45: quality 0.6M33 00:45–03:40: quality 0.7M33 03:40–04:05: quality 0.8M33 04:05–05:20: quality 1.0M33 05:20–05:45: quality 0.9M33 05:45–06:00: quality 0.5M33 06:00–06:20: quality 0.4M33 06:20–06:50: quality 0.1observe M33 23:55–01:35scheduleNGC 7000M31M33M45V1057 CygM4220:0022:0000:0002:0004:0006:00

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
19:05–20:10 — nothing worth pointing at — 1.08
20:10–20:15 NGC 7000 0.08 0.3
20:15–20:40 — nothing worth pointing at — 0.42
20:40–22:15 NGC 7000 1.58 0.57
22:15–23:55 M31 1.67 0.61
23:55–01:35 M33 1.67 0.65
01:35–03:15 M45 1.67 0.79
03:15–04:30 V1057 Cyg 1.25 0.52
04:30–06:20 M42 1.83 0.73
06:20–07:20 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 22:35–05:45 (good) 89.6° at 01:30 64.8° 1.67
M42 Great Orion Nebula 58 unknown 03:15–05:45 (good) 42.9° at 06:20 114.7° 1.83
M45 Seven Sisters 100 unknown 23:50–05:45 (good) 72.5° at 04:30 93.2° 1.67
NGC 7000 North America Nebula 59 unknown 20:40–04:40 (marginal) 87.2° at 21:45 55.5° 1.67
V1057 Cyg 59 unknown 20:40–04:40 (marginal) 87.3° at 21:45 55.4° 1.25
M33 Triangulum Pinwheel 100 unknown 23:25–05:45 (good) 79.1° at 02:20 67.2° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-09-29"

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"}.