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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, 22 September 2029 · astronomical night 20:51 → 05:36 (8.75 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:55–20:20: quality 0.1M31 20:20–20:55: quality 0.2M31 20:55–23:35: quality 0.4M31 23:35–03:05: quality 0.3M31 03:05–05:40: quality 0.4M31 05:40–06:10: quality 0.2M31 06:10–06:45: quality 0.1observe M31 23:55–01:30M42M42 03:05–03:25: quality 0.3M42 03:25–03:50: quality 0.4M42 03:50–04:30: quality 0.5M42 04:30–05:40: quality 0.6M42 05:40–06:10: quality 0.3M42 06:10–06:45: quality 0.1observe M42 04:05–06:10M45M45 23:25–23:45: quality 0.2M45 23:45–00:15: quality 0.3M45 00:15–02:40: quality 0.4M45 02:40–05:10: quality 0.5M45 05:10–05:40: quality 0.6M45 05:40–06:10: quality 0.3M45 06:10–06:45: quality 0.1observe M45 01:30–03:05NGC 7000NGC 7000 19:50–20:20: quality 0.1NGC 7000 20:20–20:55: quality 0.3NGC 7000 20:55–21:25: quality 0.6NGC 7000 21:25–00:25: quality 0.5NGC 7000 00:25–04:20: quality 0.4NGC 7000 04:20–04:55: quality 0.3NGC 7000 04:55–05:10: quality 0.2observe NGC 7000 20:20–20:30observe NGC 7000 20:55–22:20V1057 CygV1057 Cyg 19:50–20:20: quality 0.1V1057 Cyg 20:20–20:55: quality 0.3V1057 Cyg 20:55–21:25: quality 0.6V1057 Cyg 21:25–00:25: quality 0.5V1057 Cyg 00:25–04:20: quality 0.4V1057 Cyg 04:20–04:55: quality 0.3V1057 Cyg 04:55–05:10: quality 0.2observe V1057 Cyg 22:20–23:55M33M33 20:50–20:55: quality 0.1M33 20:55–21:15: quality 0.2M33 21:15–03:40: quality 0.3M33 03:40–05:40: quality 0.4M33 05:40–06:10: quality 0.2M33 06:10–06:45: quality 0.1observe M33 03:05–04:05scheduleNGC 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
19:15–20:20 — nothing worth pointing at — 1.08
20:20–20:30 NGC 7000 0.17 0.3
20:30–20:55 — nothing worth pointing at — 0.42
20:55–22:20 NGC 7000 1.42 0.54
22:20–23:55 V1057 Cyg 1.58 0.48
23:55–01:30 M31 1.58 0.33
01:30–03:05 M45 1.58 0.43
03:05–04:05 M33 1.0 0.35
04:05–06:10 M42 2.08 0.51
06:10–07:10 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 39 unknown 20:55–05:40 (marginal) 89.5° at 01:55 36.7° 1.58
M42 Great Orion Nebula 23 unknown 05:20–05:40 (good) 42.9° at 06:50 83.8° 2.08
M45 Seven Sisters 42 unknown 00:00–05:40 (marginal) 72.5° at 05:00 56.7° 1.58
NGC 7000 North America Nebula 55 unknown 20:55–04:35 (marginal) 87.2° at 22:15 55.6° 1.58
V1057 Cyg 55 unknown 20:55–04:35 (marginal) 87.3° at 22:15 55.6° 1.58
M33 Triangulum Pinwheel 33 unknown 01:45–05:40 (marginal) 79.1° at 02:50 32.9° 1.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-09-22"

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"}.