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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, 09 November 2027 · astronomical night 18:42 → 05:28 (10.77 h) · Moon 82% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:10: quality 0.1M31 18:10–18:45: quality 0.2M31 18:45–23:50: quality 0.5M31 23:50–03:00: quality 0.6M31 03:00–03:35: quality 0.8M31 03:35–03:50: quality 0.7M31 03:50–04:05: quality 0.6M31 04:05–04:25: quality 0.5M31 04:25–04:30: quality 0.4observe M31 04:20–04:30M42M42 22:55–23:05: quality 0.3M42 23:05–23:25: quality 0.4M42 23:25–23:50: quality 0.5M42 23:50–00:40: quality 0.6M42 00:40–03:00: quality 0.7M42 03:00–04:25: quality 0.9M42 04:25–05:30: quality 0.8M42 05:30–05:45: quality 0.4M42 05:45–06:05: quality 0.3M42 06:05–06:30: quality 0.1observe M42 00:30–02:25M45M45 19:20–19:45: quality 0.3M45 19:45–20:10: quality 0.4M45 20:10–21:50: quality 0.5M45 21:50–00:00: quality 0.6M45 00:00–02:35: quality 0.7M45 02:35–03:00: quality 0.8M45 03:00–03:35: quality 1.0M45 03:35–04:55: quality 0.9M45 04:55–05:30: quality 0.8M45 05:30–05:50: quality 0.4M45 05:50–06:05: quality 0.3M45 06:05–06:30: quality 0.1observe M45 22:35–00:30observe M45 04:30–06:05NGC 7000NGC 7000 17:40–18:10: quality 0.1NGC 7000 18:10–18:45: quality 0.3NGC 7000 18:45–21:05: quality 0.6NGC 7000 21:05–00:05: quality 0.5NGC 7000 00:05–00:35: quality 0.4NGC 7000 00:35–01:00: quality 0.3observe NGC 7000 18:45–20:40V1057 CygV1057 Cyg 17:40–18:10: quality 0.1V1057 Cyg 18:10–18:45: quality 0.3V1057 Cyg 18:45–21:00: quality 0.6V1057 Cyg 21:00–00:05: quality 0.5V1057 Cyg 00:05–00:35: quality 0.4V1057 Cyg 00:35–01:00: quality 0.3observe V1057 Cyg 20:40–22:35M33M33 17:40–18:10: quality 0.1M33 18:10–18:45: quality 0.2M33 18:45–19:25: quality 0.4M33 19:25–00:10: quality 0.5M33 00:10–03:00: quality 0.6M33 03:00–03:05: quality 0.9M33 03:05–03:50: quality 0.8M33 03:50–04:05: quality 0.7M33 04:05–04:20: quality 0.6M33 04:20–04:35: quality 0.5M33 04:35–04:40: quality 0.4observe M33 02:25–04:20scheduleNGC 7000V1057 CygM45M42M33M4518:0020:0022:0000:0002:0004:0006:00

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
17:05–18:45 — nothing worth pointing at — 1.67
18:45–20:40 NGC 7000 1.92 0.56
20:40–22:35 V1057 Cyg 1.92 0.53
22:35–00:30 M45 1.92 0.64
00:30–02:25 M42 1.92 0.69
02:25–04:20 M33 1.92 0.71
04:20–04:30 M31 0.17 0.44
04:30–06:05 M45 1.58 0.67
06:05–07:05 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 83 unknown 03:00–04:00 (good) 89.7° at 21:50 41.4° 0.17
M42 Great Orion Nebula 89 unknown 00:00–05:30 (good) 42.9° at 02:40 88.7° 1.92
M45 Seven Sisters 99 unknown 22:40–05:30 (good) 72.5° at 00:55 63.0° 3.5
NGC 7000 North America Nebula 49 unknown 18:45–00:50 (marginal) 87.2° at 18:05 55.3° 1.92
V1057 Cyg 49 unknown 18:45–00:50 (marginal) 87.3° at 18:05 55.2° 1.92
M33 Triangulum Pinwheel 85 unknown 03:00–04:15 (good) 79.1° at 22:40 38.9° 1.92

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-09"

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"}.