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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 Friday, 12 November 2027 · astronomical night 18:39 → 05:31 (10.86 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:35–18:10: quality 0.1M31 18:10–18:40: quality 0.2M31 18:40–19:35: quality 0.4M31 19:35–03:50: quality 0.3M31 03:50–04:20: quality 0.2observe M31 02:50–03:25M42M42 22:45–23:15: quality 0.2M42 23:15–23:50: quality 0.3M42 23:50–02:25: quality 0.4M42 02:25–05:35: quality 0.5M42 05:35–06:05: quality 0.2M42 06:05–06:10: quality 0.1observe M42 23:30–01:25observe M42 04:50–05:35M45M45 19:10–19:55: quality 0.2M45 19:55–21:00: quality 0.3M45 21:00–22:40: quality 0.2M45 22:40–02:25: quality 0.3M45 02:25–05:35: quality 0.4M45 05:35–06:05: quality 0.2observe M45 01:25–02:50observe M45 03:50–04:50NGC 7000NGC 7000 17:35–18:10: quality 0.1NGC 7000 18:10–18:40: quality 0.3NGC 7000 18:40–20:10: quality 0.6NGC 7000 20:10–22:20: quality 0.5NGC 7000 22:20–00:00: quality 0.4NGC 7000 00:00–00:35: quality 0.3NGC 7000 00:35–00:50: quality 0.2observe NGC 7000 18:10–20:05V1057 CygV1057 Cyg 17:35–18:10: quality 0.1V1057 Cyg 18:10–18:40: quality 0.3V1057 Cyg 18:40–20:10: quality 0.6V1057 Cyg 20:10–22:20: quality 0.5V1057 Cyg 22:20–00:00: quality 0.4V1057 Cyg 00:00–00:35: quality 0.3V1057 Cyg 00:35–00:50: quality 0.2observe V1057 Cyg 20:05–23:30M33M33 17:35–18:10: quality 0.1M33 18:10–18:40: quality 0.2M33 18:40–19:05: quality 0.4M33 19:05–04:10: quality 0.3M33 04:10–04:30: quality 0.2observe M33 03:25–03:50scheduleNGC 7000V1057 CygM42M45M4518:0020:0022:0000:0002:0004:0006:00

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
17:00–18:10 — nothing worth pointing at — 1.17
18:10–20:05 NGC 7000 1.92 0.51
20:05–23:30 V1057 Cyg 3.42 0.48
23:30–01:25 M42 1.92 0.37
01:25–02:50 M45 1.42 0.34
02:50–03:25 M31 0.58 0.31
03:25–03:50 M33 0.42 0.32
03:50–04:50 M45 1.0 0.42
04:50–05:35 M42 0.75 0.5
05:35–07:10 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 29 unknown 18:40–20:40 (marginal) 89.6° at 21:40 29.1° 0.58
M42 Great Orion Nebula 39 unknown 23:30–05:35 (marginal) 42.9° at 02:30 57.1° 2.67
M45 Seven Sisters 36 unknown 01:20–05:35 (marginal) 72.5° at 00:40 24.7° 2.42
NGC 7000 North America Nebula 47 unknown 18:40–18:50 (good) 87.3° at 17:55 67.9° 1.92
V1057 Cyg 47 unknown 18:40–18:50 (good) 87.3° at 17:55 67.9° 3.42
M33 Triangulum Pinwheel 27 unknown 18:40–20:40 (marginal) 79.1° at 22:30 14.5° 0.42
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-12"

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"}.