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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, 26 September 2034 · astronomical night 20:44 → 05:40 (8.94 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:40–20:15: quality 0.1M31 20:15–20:45: quality 0.2M31 20:45–03:50: quality 0.5M31 03:50–05:45: quality 0.6M31 05:45–06:10: quality 0.3M31 06:10–06:15: quality 0.4M31 06:15–06:50: quality 0.1observe M31 23:55–01:35M42M42 02:50–03:00: quality 0.3M42 03:00–03:20: quality 0.4M42 03:20–03:40: quality 0.5M42 03:40–04:25: quality 0.6M42 04:25–05:45: quality 0.7M42 05:45–06:15: quality 0.4M42 06:15–06:50: quality 0.1observe M42 04:55–06:15M45M45 23:15–23:40: quality 0.3M45 23:40–00:05: quality 0.4M45 00:05–01:45: quality 0.5M45 01:45–03:40: quality 0.6M45 03:40–05:45: quality 0.7M45 05:45–06:10: quality 0.4M45 06:10–06:15: quality 0.5M45 06:15–06:45: quality 0.2M45 06:45–06:50: quality 0.1observe M45 01:35–03:15NGC 7000NGC 7000 19:40–20:15: quality 0.1NGC 7000 20:15–20:45: quality 0.3NGC 7000 20:45–21:35: quality 0.6NGC 7000 21:35–03:50: quality 0.5NGC 7000 03:50–04:25: quality 0.4NGC 7000 04:25–04:55: quality 0.3observe NGC 7000 20:15–20:25observe NGC 7000 20:45–22:15V1057 CygV1057 Cyg 19:40–20:15: quality 0.1V1057 Cyg 20:15–20:45: quality 0.3V1057 Cyg 20:45–21:35: quality 0.6V1057 Cyg 21:35–03:50: quality 0.5V1057 Cyg 03:50–04:25: quality 0.4V1057 Cyg 04:25–04:55: quality 0.3observe V1057 Cyg 22:15–23:55M33M33 20:35–20:45: quality 0.1M33 20:45–21:20: quality 0.3M33 21:20–00:55: quality 0.4M33 00:55–04:00: quality 0.5M33 04:00–05:45: quality 0.6M33 05:45–06:10: quality 0.3M33 06:10–06:15: quality 0.5M33 06:15–06:50: quality 0.1observe M33 03:15–04:55scheduleNGC 7000V1057 CygM31M45M33M4220:0022:0000:0002:0004:0006:00

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
19:10–20:15 — nothing worth pointing at — 1.08
20:15–20:25 NGC 7000 0.17 0.3
20:25–20:45 — nothing worth pointing at — 0.33
20:45–22:15 NGC 7000 1.5 0.55
22:15–23:55 V1057 Cyg 1.67 0.51
23:55–01:35 M31 1.67 0.46
01:35–03:15 M45 1.67 0.59
03:15–04:55 M33 1.67 0.55
04:55–06:15 M42 1.33 0.58
06:15–07:15 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 59 unknown 20:45–05:45 (marginal) 89.5° at 01:40 49.8° 1.67
M42 Great Orion Nebula 36 unknown 03:50–05:45 (good) 42.9° at 06:35 94.8° 1.33
M45 Seven Sisters 73 unknown 02:30–05:45 (good) 72.5° at 04:45 71.9° 1.67
NGC 7000 North America Nebula 58 unknown 20:45–04:40 (marginal) 87.2° at 22:00 57.3° 1.67
V1057 Cyg 58 unknown 20:45–04:40 (marginal) 87.3° at 22:00 57.2° 1.67
M33 Triangulum Pinwheel 61 unknown 04:55–05:45 (good) 79.1° at 02:35 48.2° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2034-09-26"

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"}.