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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, 06 September 2033 · astronomical night 21:22 → 05:16 (7.9 h) · Moon 93% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:40–20:50: quality 0.1M31 20:50–21:20: quality 0.2M31 21:20–21:25: quality 0.3M31 21:25–22:15: quality 0.5M31 22:15–00:40: quality 0.6M31 00:40–04:10: quality 0.7M31 04:10–04:40: quality 0.8M31 04:40–05:20: quality 1.0M31 05:20–05:55: quality 0.5M31 05:55–06:25: quality 0.1observe M31 22:50–00:15M42M42 04:05–04:20: quality 0.4M42 04:20–04:35: quality 0.5M42 04:35–04:45: quality 0.6M42 04:45–05:00: quality 0.7M42 05:00–05:20: quality 0.8M42 05:20–05:55: quality 0.4M42 05:55–06:25: quality 0.1observe M42 04:30–05:55M45M45 00:30–00:35: quality 0.3M45 00:35–00:50: quality 0.4M45 00:50–01:10: quality 0.5M45 01:10–01:25: quality 0.6M45 01:25–02:45: quality 0.7M45 02:45–04:00: quality 0.8M45 04:00–04:40: quality 0.9M45 04:40–05:20: quality 1.0M45 05:20–05:55: quality 0.5M45 05:55–06:25: quality 0.2observe M45 01:40–03:05NGC 7000NGC 7000 20:15–20:50: quality 0.1NGC 7000 20:50–21:25: quality 0.3NGC 7000 21:25–04:40: quality 0.6NGC 7000 04:40–05:10: quality 0.8NGC 7000 05:10–05:20: quality 0.7NGC 7000 05:20–05:55: quality 0.3NGC 7000 05:55–06:10: quality 0.1observe NGC 7000 21:25–22:50V1057 CygV1057 Cyg 20:15–20:50: quality 0.1V1057 Cyg 20:50–21:25: quality 0.3V1057 Cyg 21:25–04:40: quality 0.6V1057 Cyg 04:40–05:10: quality 0.8V1057 Cyg 05:10–05:20: quality 0.7V1057 Cyg 05:20–05:55: quality 0.3V1057 Cyg 05:55–06:10: quality 0.1observe V1057 Cyg 03:05–04:30M33M33 21:55–22:15: quality 0.3M33 22:15–22:35: quality 0.4M33 22:35–23:15: quality 0.5M33 23:15–01:00: quality 0.6M33 01:00–03:45: quality 0.7M33 03:45–04:40: quality 0.8M33 04:40–05:20: quality 1.0M33 05:20–05:55: quality 0.5M33 05:55–06:15: quality 0.2M33 06:15–06:25: quality 0.1observe M33 00:15–01:40scheduleNGC 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
19:45–21:25 — nothing worth pointing at — 1.67
21:25–22:50 NGC 7000 1.42 0.56
22:50–00:15 M31 1.42 0.6
00:15–01:40 M33 1.42 0.65
01:40–03:05 M45 1.42 0.72
03:05–04:30 V1057 Cyg 1.42 0.59
04:30–05:55 M42 1.42 0.58
05:55–06:55 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 23:30–05:20 (good) 89.8° at 03:00 73.5° 1.42
M42 Great Orion Nebula 21 unknown 04:40–05:20 (good) 42.9° at 07:50 125.4° 1.42
M45 Seven Sisters 100 unknown 01:15–05:20 (good) 72.5° at 06:05 104.7° 1.42
NGC 7000 North America Nebula 82 unknown 04:40–05:20 (good) 87.2° at 23:15 56.5° 1.42
V1057 Cyg 82 unknown 04:40–05:20 (good) 87.3° at 23:15 56.4° 1.42
M33 Triangulum Pinwheel 100 unknown 00:15–05:20 (good) 79.1° at 03:50 77.8° 1.42
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2033-09-06"

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"}.