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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 Saturday, 30 September 2034 · astronomical night 20:37 → 05:45 (9.13 h) · Moon 89% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:35–20:05: quality 0.1M31 20:05–20:40: quality 0.4M31 20:40–20:55: quality 0.9M31 20:55–23:10: quality 0.6M31 23:10–01:15: quality 0.5M31 01:15–05:50: quality 0.4M31 05:50–06:20: quality 0.2M31 06:20–06:55: quality 0.1observe M31 23:25–01:05M42M42 02:35–03:05: quality 0.2M42 03:05–04:40: quality 0.3M42 04:40–05:50: quality 0.4M42 05:50–06:20: quality 0.2M42 06:20–06:55: quality 0.1observe M42 04:25–05:50M45M45 22:55–23:10: quality 0.2M45 23:10–23:45: quality 0.3M45 23:45–01:30: quality 0.4M45 01:30–05:20: quality 0.3M45 05:20–05:50: quality 0.4M45 05:50–06:20: quality 0.2M45 06:20–06:55: quality 0.1observe M45 02:45–04:25NGC 7000NGC 7000 19:35–20:05: quality 0.2NGC 7000 20:05–20:40: quality 0.5NGC 7000 20:40–20:55: quality 1.0NGC 7000 20:55–22:30: quality 0.8NGC 7000 22:30–01:00: quality 0.7NGC 7000 01:00–02:40: quality 0.6NGC 7000 02:40–03:45: quality 0.5NGC 7000 03:45–04:10: quality 0.4NGC 7000 04:10–04:40: quality 0.3observe NGC 7000 20:05–21:45V1057 CygV1057 Cyg 19:35–20:05: quality 0.2V1057 Cyg 20:05–20:40: quality 0.5V1057 Cyg 20:40–20:55: quality 1.0V1057 Cyg 20:55–22:30: quality 0.8V1057 Cyg 22:30–01:00: quality 0.7V1057 Cyg 01:00–02:40: quality 0.6V1057 Cyg 02:40–03:45: quality 0.5V1057 Cyg 03:45–04:10: quality 0.4V1057 Cyg 04:10–04:40: quality 0.3observe V1057 Cyg 21:45–23:25M33M33 20:20–20:35: quality 0.2M33 20:35–20:40: quality 0.3M33 20:40–20:45: quality 0.5M33 20:45–20:55: quality 0.6M33 20:55–21:05: quality 0.4M33 21:05–00:00: quality 0.5M33 00:00–02:25: quality 0.4M33 02:25–05:50: quality 0.3M33 05:50–06:20: quality 0.2M33 06:20–06:55: quality 0.1observe M33 01:05–02:45scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
19:00–20:05 — nothing worth pointing at — 1.08
20:05–21:45 NGC 7000 1.67 0.72
21:45–23:25 V1057 Cyg 1.67 0.75
23:25–01:05 M31 1.67 0.49
01:05–02:45 M33 1.67 0.37
02:45–04:25 M45 1.67 0.34
04:25–05:50 M42 1.42 0.36
05:50–07:20 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 86 unknown 20:40–20:55 (good) 89.6° at 01:25 41.4° 1.67
M42 Great Orion Nebula 11 unknown 03:25–05:50 (marginal) 42.9° at 06:20 42.5° 1.42
M45 Seven Sisters 23 unknown 23:25–05:50 (marginal) 72.5° at 04:30 15.7° 1.67
NGC 7000 North America Nebula 100 unknown 20:40–01:45 (good) 87.2° at 21:45 81.4° 1.67
V1057 Cyg 100 unknown 20:40–01:45 (good) 87.3° at 21:45 81.4° 1.67
M33 Triangulum Pinwheel 60 unknown 20:50–20:55 (good) 79.1° at 02:20 26.8° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2034-09-30"

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"}.