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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 Thursday, 18 October 2040 · astronomical night 20:06 → 06:05 (9.98 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:35: quality 0.1M31 19:35–20:10: quality 0.2M31 20:10–21:00: quality 0.5M31 21:00–03:25: quality 0.4M31 03:25–06:05: quality 0.5M31 06:05–06:10: quality 0.4M31 06:10–06:25: quality 0.2M31 06:25–06:40: quality 0.3M31 06:40–06:55: quality 0.1observe M31 23:25–01:20M42M42 01:20–01:25: quality 0.2M42 01:25–01:50: quality 0.3M42 01:50–02:15: quality 0.4M42 02:15–03:35: quality 0.5M42 03:35–06:00: quality 0.6M42 06:00–06:10: quality 0.7M42 06:10–06:25: quality 0.3M42 06:25–06:40: quality 0.4M42 06:40–07:15: quality 0.1observe M42 03:15–05:10observe M42 06:10–06:40M45M45 21:45–22:00: quality 0.2M45 22:00–22:30: quality 0.3M45 22:30–01:20: quality 0.4M45 01:20–04:05: quality 0.5M45 04:05–06:10: quality 0.6M45 06:10–06:25: quality 0.3M45 06:25–06:40: quality 0.5M45 06:40–07:15: quality 0.1observe M45 01:20–03:15NGC 7000NGC 7000 19:05–19:35: quality 0.1NGC 7000 19:35–20:10: quality 0.3NGC 7000 20:10–22:45: quality 0.6NGC 7000 22:45–02:15: quality 0.5NGC 7000 02:15–02:50: quality 0.4NGC 7000 02:50–03:20: quality 0.3NGC 7000 03:20–03:25: quality 0.2observe NGC 7000 19:35–21:30V1057 CygV1057 Cyg 19:05–19:35: quality 0.1V1057 Cyg 19:35–20:10: quality 0.3V1057 Cyg 20:10–22:45: quality 0.6V1057 Cyg 22:45–02:15: quality 0.5V1057 Cyg 02:15–02:50: quality 0.4V1057 Cyg 02:50–03:20: quality 0.3V1057 Cyg 03:20–03:25: quality 0.2observe V1057 Cyg 21:30–23:25M33M33 19:35–20:10: quality 0.2M33 20:10–22:55: quality 0.4M33 22:55–01:35: quality 0.3M33 01:35–04:35: quality 0.4M33 04:35–06:10: quality 0.5M33 06:10–06:25: quality 0.2M33 06:25–06:40: quality 0.3M33 06:40–07:05: quality 0.1observe M33 05:10–06:10scheduleNGC 7000V1057 CygM31M45M42M3320:0022:0000:0002:0004:0006:00

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
18:30–19:35 — nothing worth pointing at — 1.08
19:35–21:30 NGC 7000 1.92 0.52
21:30–23:25 V1057 Cyg 1.92 0.56
23:25–01:20 M31 1.92 0.39
01:20–03:15 M45 1.92 0.48
03:15–05:10 M42 1.92 0.58
05:10–06:10 M33 1.0 0.47
06:10–06:40 M42 0.5 0.38
06:40–07:40 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 49 unknown 20:10–06:10 (marginal) 89.7° at 00:15 40.8° 1.92
M42 Great Orion Nebula 46 unknown 04:35–06:10 (good) 42.9° at 05:05 73.6° 2.42
M45 Seven Sisters 62 unknown 05:05–06:10 (good) 72.5° at 03:15 50.6° 1.92
NGC 7000 North America Nebula 62 unknown 20:10–21:00 (good) 87.2° at 20:30 65.9° 1.92
V1057 Cyg 62 unknown 20:10–21:00 (good) 87.3° at 20:30 65.8° 1.92
M33 Triangulum Pinwheel 48 unknown 20:10–06:10 (marginal) 79.2° at 01:05 32.7° 1.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-10-18"

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"}.