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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 Wednesday, 09 October 2030 · astronomical night 20:21 → 05:55 (9.56 h) · Moon 97% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:20–19:50: quality 0.1M31 19:50–20:25: quality 0.2M31 20:25–03:10: quality 0.4M31 03:10–06:00: quality 0.5M31 06:00–06:20: quality 0.3M31 06:20–06:30: quality 0.4M31 06:30–07:00: quality 0.1observe M31 01:40–03:25M42M42 02:00–02:15: quality 0.3M42 02:15–02:35: quality 0.4M42 02:35–03:00: quality 0.5M42 03:00–04:35: quality 0.6M42 04:35–06:00: quality 0.7M42 06:00–06:30: quality 0.4M42 06:30–07:00: quality 0.1observe M42 03:25–05:10observe M42 06:00–06:30M45M45 22:20–22:35: quality 0.2M45 22:35–23:00: quality 0.3M45 23:00–00:35: quality 0.4M45 00:35–02:45: quality 0.5M45 02:45–05:00: quality 0.6M45 05:00–06:00: quality 0.7M45 06:00–06:20: quality 0.3M45 06:20–06:30: quality 0.5M45 06:30–07:00: quality 0.1observe M45 23:55–01:40NGC 7000NGC 7000 19:20–19:50: quality 0.1NGC 7000 19:50–20:25: quality 0.3NGC 7000 20:25–00:10: quality 0.5NGC 7000 00:10–03:20: quality 0.4NGC 7000 03:20–03:55: quality 0.3NGC 7000 03:55–04:00: quality 0.2observe NGC 7000 20:25–22:10V1057 CygV1057 Cyg 19:20–19:50: quality 0.1V1057 Cyg 19:50–20:25: quality 0.3V1057 Cyg 20:25–00:10: quality 0.5V1057 Cyg 00:10–03:20: quality 0.4V1057 Cyg 03:20–03:55: quality 0.3V1057 Cyg 03:55–04:00: quality 0.2observe V1057 Cyg 22:10–23:55M33M33 19:50–20:25: quality 0.1M33 20:25–00:30: quality 0.3M33 00:30–03:25: quality 0.4M33 03:25–06:00: quality 0.5M33 06:00–06:20: quality 0.3M33 06:20–06:30: quality 0.4M33 06:30–07:00: quality 0.1observe M33 05:10–06:00scheduleNGC 7000V1057 CygM45M31M42M3320:0022:0000:0002:0004:0006:00

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
18:45–20:25 — nothing worth pointing at — 1.67
20:25–22:10 NGC 7000 1.75 0.51
22:10–23:55 V1057 Cyg 1.75 0.47
23:55–01:40 M45 1.75 0.46
01:40–03:25 M31 1.75 0.42
03:25–05:10 M42 1.75 0.63
05:10–06:00 M33 0.83 0.52
06:00–06:30 M42 0.5 0.38
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 52 unknown 20:25–06:00 (marginal) 89.7° at 00:50 39.4° 1.75
M42 Great Orion Nebula 46 unknown 03:40–06:00 (good) 42.9° at 05:45 87.3° 2.25
M45 Seven Sisters 70 unknown 04:00–06:00 (good) 72.5° at 03:55 60.9° 1.75
NGC 7000 North America Nebula 48 unknown 20:25–03:35 (marginal) 87.2° at 21:05 54.8° 1.75
V1057 Cyg 48 unknown 20:25–03:35 (marginal) 87.3° at 21:05 54.8° 1.75
M33 Triangulum Pinwheel 52 unknown 20:25–06:00 (marginal) 79.1° at 01:40 36.7° 0.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-10-09"

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"}.