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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, 10 November 2027 · astronomical night 18:41 → 05:29 (10.8 h) · Moon 89% (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 18:45–00:30: quality 0.4M31 00:30–03:35: quality 0.5M31 03:35–04:05: quality 0.4M31 04:05–04:20: quality 0.5M31 04:20–04:30: quality 0.4observe M31 02:25–04:05M42M42 22:55–23:15: quality 0.3M42 23:15–23:40: quality 0.4M42 23:40–00:20: quality 0.5M42 00:20–02:20: quality 0.6M42 02:20–04:05: quality 0.7M42 04:05–04:20: quality 0.9M42 04:20–05:30: quality 0.8M42 05:30–05:40: quality 0.4M42 05:40–06:05: quality 0.3M42 06:05–06:30: quality 0.1observe M42 00:30–02:25M45M45 19:15–19:30: quality 0.2M45 19:30–20:00: quality 0.3M45 20:00–22:10: quality 0.4M45 22:10–00:55: quality 0.5M45 00:55–04:05: quality 0.6M45 04:05–04:55: quality 0.9M45 04:55–05:30: quality 0.8M45 05:30–05:45: quality 0.4M45 05:45–06:05: quality 0.3M45 06:05–06:30: quality 0.1observe M45 22:35–00:30observe M45 04:40–06:00NGC 7000NGC 7000 17:40–18:10: quality 0.1NGC 7000 18:10–18:45: quality 0.3NGC 7000 18:45–19:10: quality 0.6NGC 7000 19:10–23:05: quality 0.5NGC 7000 23:05–00:20: quality 0.4NGC 7000 00:20–00:55: 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 18:45–19:10: quality 0.6V1057 Cyg 19:10–23:05: quality 0.5V1057 Cyg 23:05–00:20: quality 0.4V1057 Cyg 00:20–00:50: quality 0.3V1057 Cyg 00:50–00:55: quality 0.2observe V1057 Cyg 20:40–22:35M33M33 17:40–18:10: quality 0.1M33 18:10–18:45: quality 0.2M33 18:45–00:55: quality 0.4M33 00:55–03:55: quality 0.5M33 03:55–04:05: quality 0.4M33 04:05–04:15: quality 0.6M33 04:15–04:30: quality 0.5M33 04:30–04:40: quality 0.4observe M33 04:05–04:40scheduleNGC 7000V1057 CygM45M42M31M4518:0020:0022:0000:0002:0004:0006:00

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 0.54
20:40–22:35 V1057 Cyg 1.92 0.49
22:35–00:30 M45 1.92 0.5
00:30–02:25 M42 1.92 0.61
02:25–04:05 M31 1.67 0.46
04:05–04:40 M33 0.58 0.51
04:40–06:00 M45 1.33 0.66
06:00–07:05 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 52 unknown 18:45–04:30 (marginal) 89.6° at 21:45 33.7° 1.67
M42 Great Orion Nebula 86 unknown 01:15–05:30 (good) 42.9° at 02:40 78.2° 1.92
M45 Seven Sisters 91 unknown 02:00–05:30 (good) 72.5° at 00:50 50.5° 3.25
NGC 7000 North America Nebula 44 unknown 18:45–00:35 (marginal) 87.2° at 18:00 57.9° 1.92
V1057 Cyg 44 unknown 18:45–00:35 (marginal) 87.3° at 18:05 57.8° 1.92
M33 Triangulum Pinwheel 61 unknown 04:05–04:10 (good) 79.1° at 22:35 27.9° 0.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-10"

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"}.