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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 Sunday, 27 October 2030 · astronomical night 18:55 → 05:14 (10.32 h) · Moon 2% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:55–18:25: quality 0.1M31 18:25–18:40: quality 0.4M31 18:40–19:00: quality 0.5M31 19:00–19:20: quality 0.9M31 19:20–02:05: quality 1.0M31 02:05–03:30: quality 0.9M31 03:30–04:25: quality 0.8M31 04:25–04:40: quality 0.7M31 04:40–04:55: quality 0.6M31 04:55–05:15: quality 0.5M31 05:15–05:20: quality 0.2observe M31 22:15–00:10M42M42 23:45–23:55: quality 0.4M42 23:55–00:10: quality 0.5M42 00:10–00:25: quality 0.6M42 00:25–00:45: quality 0.7M42 00:45–01:55: quality 0.8M42 01:55–05:15: quality 0.9M42 05:15–05:50: quality 0.4M42 05:50–06:20: quality 0.1observe M42 04:00–05:50M45M45 20:10–20:15: quality 0.4M45 20:15–20:30: quality 0.5M45 20:30–20:45: quality 0.6M45 20:45–21:00: quality 0.7M45 21:00–21:45: quality 0.8M45 21:45–23:05: quality 0.9M45 23:05–04:25: quality 1.0M45 04:25–05:15: quality 0.9M45 05:15–05:50: quality 0.4M45 05:50–06:20: quality 0.1observe M45 02:05–04:00NGC 7000NGC 7000 17:55–18:25: quality 0.2NGC 7000 18:25–19:00: quality 0.5NGC 7000 19:00–22:25: quality 1.0NGC 7000 22:25–23:55: quality 0.9NGC 7000 23:55–00:50: quality 0.8NGC 7000 00:50–01:10: quality 0.7NGC 7000 01:10–01:25: quality 0.6NGC 7000 01:25–01:45: quality 0.5NGC 7000 01:45–01:50: quality 0.4observe NGC 7000 18:25–20:20V1057 CygV1057 Cyg 17:55–18:25: quality 0.2V1057 Cyg 18:25–19:00: quality 0.5V1057 Cyg 19:00–22:25: quality 1.0V1057 Cyg 22:25–23:55: quality 0.9V1057 Cyg 23:55–00:50: quality 0.8V1057 Cyg 00:50–01:10: quality 0.7V1057 Cyg 01:10–01:25: quality 0.6V1057 Cyg 01:25–01:40: quality 0.5V1057 Cyg 01:40–01:50: quality 0.4observe V1057 Cyg 20:20–22:15M33M33 17:55–18:25: quality 0.1M33 18:25–19:00: quality 0.4M33 19:00–19:15: quality 0.8M33 19:15–20:35: quality 0.9M33 20:35–02:35: quality 1.0M33 02:35–03:55: quality 0.9M33 03:55–04:45: quality 0.8M33 04:45–04:55: quality 0.7M33 04:55–05:10: quality 0.6M33 05:10–05:15: quality 0.5M33 05:15–05:20: quality 0.3M33 05:20–05:35: quality 0.2observe M33 00:10–02:05scheduleNGC 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
17:20–18:25 — nothing worth pointing at — 1.08
18:25–20:20 NGC 7000 1.92 0.85
20:20–22:15 V1057 Cyg 1.92 1.0
22:15–00:10 M31 1.92 1.0
00:10–02:05 M33 1.92 1.0
02:05–04:00 M45 1.92 1.0
04:00–05:50 M42 1.83 0.73
05:50–06:50 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 19:00–04:50 (good) 89.7° at 22:40 142.4° 1.92
M42 Great Orion Nebula 89 unknown 00:20–05:15 (good) 42.9° at 03:30 135.8° 1.83
M45 Seven Sisters 100 unknown 20:40–05:15 (good) 72.5° at 01:45 169.3° 1.92
NGC 7000 North America Nebula 100 unknown 19:00–01:15 (good) 87.2° at 18:55 102.1° 1.92
V1057 Cyg 100 unknown 19:00–01:15 (good) 87.3° at 18:55 102.1° 1.92
M33 Triangulum Pinwheel 100 unknown 19:00–05:05 (good) 79.1° at 23:30 156.3° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-10-27"

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"}.