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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, 28 September 2034 · astronomical night 20:40 → 05:42 (9.04 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:40–20:10: quality 0.1M31 20:10–20:45: quality 0.2M31 20:45–21:25: quality 0.5M31 21:25–00:35: quality 0.4M31 00:35–03:25: quality 0.3M31 03:25–05:45: quality 0.4M31 05:45–06:20: quality 0.2M31 06:20–06:50: quality 0.1observe M31 23:30–01:10M42M42 02:40–02:50: quality 0.2M42 02:50–03:20: quality 0.3M42 03:20–04:00: quality 0.4M42 04:00–05:45: quality 0.5M42 05:45–06:20: quality 0.3M42 06:20–06:50: quality 0.1observe M42 03:20–05:00M45M45 23:05–23:30: quality 0.2M45 23:30–01:50: quality 0.3M45 01:50–05:05: quality 0.4M45 05:05–05:45: quality 0.5M45 05:45–06:05: quality 0.2M45 06:05–06:20: quality 0.3M45 06:20–06:50: quality 0.1observe M45 01:10–02:50NGC 7000NGC 7000 19:40–20:10: quality 0.1NGC 7000 20:10–20:15: quality 0.4NGC 7000 20:15–20:45: quality 0.3NGC 7000 20:45–21:15: quality 0.7NGC 7000 21:15–23:50: quality 0.6NGC 7000 23:50–02:40: quality 0.5NGC 7000 02:40–04:05: quality 0.4NGC 7000 04:05–04:40: quality 0.3NGC 7000 04:40–04:45: quality 0.2observe NGC 7000 20:10–21:50observe NGC 7000 02:50–03:20V1057 CygV1057 Cyg 19:40–20:10: quality 0.1V1057 Cyg 20:10–20:15: quality 0.4V1057 Cyg 20:15–20:45: quality 0.3V1057 Cyg 20:45–21:15: quality 0.7V1057 Cyg 21:15–23:50: quality 0.6V1057 Cyg 23:50–02:40: quality 0.5V1057 Cyg 02:40–04:05: quality 0.4V1057 Cyg 04:05–04:35: quality 0.3V1057 Cyg 04:35–04:45: quality 0.2observe V1057 Cyg 21:50–23:30M33M33 20:30–20:45: quality 0.1M33 20:45–21:15: quality 0.3M33 21:15–22:35: quality 0.4M33 22:35–04:35: quality 0.3M33 04:35–05:45: quality 0.4M33 05:45–06:20: quality 0.2M33 06:20–06:50: quality 0.1observe M33 05:00–05:45scheduleNGC 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
19:05–20:10 — nothing worth pointing at — 1.08
20:10–21:50 NGC 7000 1.67 0.54
21:50–23:30 V1057 Cyg 1.67 0.59
23:30–01:10 M31 1.67 0.36
01:10–02:50 M45 1.67 0.36
02:50–03:20 NGC 7000 0.5 0.44
03:20–05:00 M42 1.67 0.45
05:00–05:45 M33 0.75 0.37
05:45–07:20 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 43 unknown 20:45–05:45 (marginal) 89.8° at 01:35 36.9° 1.67
M42 Great Orion Nebula 21 unknown 03:05–05:45 (marginal) 42.9° at 06:25 68.3° 1.67
M45 Seven Sisters 31 unknown 23:50–05:45 (marginal) 72.5° at 04:40 43.4° 1.67
NGC 7000 North America Nebula 67 unknown 20:45–22:25 (good) 87.2° at 21:50 66.6° 2.17
V1057 Cyg 67 unknown 20:45–22:25 (good) 87.3° at 21:50 66.5° 1.67
M33 Triangulum Pinwheel 30 unknown 21:00–00:55 (marginal) 79.1° at 02:25 26.8° 0.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2034-09-28"

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"}.