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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, 13 October 2043 · astronomical night 20:15 → 05:59 (9.73 h) · Moon 75% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:15–19:45: quality 0.1M31 19:45–20:20: quality 0.3M31 20:20–20:30: quality 0.6M31 20:30–00:00: quality 0.7M31 00:00–02:25: quality 0.8M31 02:25–04:00: quality 1.0M31 04:00–05:30: quality 0.9M31 05:30–06:00: quality 0.8M31 06:00–06:30: quality 0.4M31 06:30–06:35: quality 0.3M31 06:35–07:05: quality 0.1observe M31 21:35–23:25M42M42 01:45–01:55: quality 0.4M42 01:55–02:15: quality 0.5M42 02:15–02:25: quality 0.6M42 02:25–02:40: quality 0.7M42 02:40–03:50: quality 0.8M42 03:50–06:00: quality 0.9M42 06:00–06:35: quality 0.4M42 06:35–07:05: quality 0.1observe M42 03:45–05:35M45M45 22:05–22:10: quality 0.3M45 22:10–22:25: quality 0.4M45 22:25–22:45: quality 0.5M45 22:45–23:00: quality 0.6M45 23:00–00:10: quality 0.7M45 00:10–01:30: quality 0.8M45 01:30–02:25: quality 0.9M45 02:25–06:00: quality 1.0M45 06:00–06:35: quality 0.5M45 06:35–07:05: quality 0.1observe M45 01:15–03:05observe M45 05:35–06:35NGC 7000NGC 7000 19:15–19:45: quality 0.1NGC 7000 19:45–20:20: quality 0.3NGC 7000 20:20–02:00: quality 0.7NGC 7000 02:00–02:25: quality 0.6NGC 7000 02:25–02:50: quality 0.8NGC 7000 02:50–03:05: quality 0.7NGC 7000 03:05–03:20: quality 0.6NGC 7000 03:20–03:40: quality 0.5NGC 7000 03:40–03:50: quality 0.4observe NGC 7000 19:45–21:35V1057 CygV1057 Cyg 19:15–19:45: quality 0.1V1057 Cyg 19:45–20:20: quality 0.3V1057 Cyg 20:20–02:00: quality 0.7V1057 Cyg 02:00–02:25: quality 0.6V1057 Cyg 02:25–02:50: quality 0.8V1057 Cyg 02:50–03:05: quality 0.7V1057 Cyg 03:05–03:20: quality 0.6V1057 Cyg 03:20–03:40: quality 0.5V1057 Cyg 03:40–03:50: quality 0.4observe V1057 Cyg 03:05–03:45M33M33 19:40–19:45: quality 0.1M33 19:45–20:10: quality 0.2M33 20:10–20:20: quality 0.3M33 20:20–21:45: quality 0.6M33 21:45–23:45: quality 0.7M33 23:45–02:25: quality 0.8M33 02:25–04:30: quality 1.0M33 04:30–05:50: quality 0.9M33 05:50–06:00: quality 0.8M33 06:00–06:35: quality 0.4M33 06:35–07:05: quality 0.1observe M33 23:25–01:15scheduleNGC 7000M31M33M45M42M4520:0022:0000:0002:0004:0006:00

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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–21:35 NGC 7000 1.83 0.58
21:35–23:25 M31 1.83 0.73
23:25–01:15 M33 1.83 0.76
01:15–03:05 M45 1.83 0.92
03:05–03:45 V1057 Cyg 0.67 0.53
03:45–05:35 M42 1.83 0.87
05:35–06:35 M45 1.0 0.69
06:35–07:35 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:20–06:00 (good) 89.6° at 00:35 72.8° 1.83
M42 Great Orion Nebula 82 unknown 02:20–06:00 (good) 42.9° at 05:30 116.0° 1.83
M45 Seven Sisters 100 unknown 22:50–06:00 (good) 72.6° at 03:40 99.1° 2.83
NGC 7000 North America Nebula 81 unknown 20:20–03:15 (good) 87.2° at 20:55 62.6° 1.83
V1057 Cyg 81 unknown 20:20–03:15 (good) 87.2° at 20:55 62.5° 0.67
M33 Triangulum Pinwheel 100 unknown 20:45–06:00 (good) 79.2° at 01:30 74.5° 1.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-10-13"

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"}.