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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 Thursday, 14 October 2027 · astronomical night 20:14 → 06:00 (9.77 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:10–19:45: quality 0.1M31 19:45–20:15: quality 0.2M31 20:15–21:45: quality 0.4M31 21:45–03:30: quality 0.3M31 03:30–06:05: quality 0.4M31 06:05–06:35: quality 0.2M31 06:35–06:45: quality 0.1observe M31 05:40–06:05M42M42 01:40–01:45: quality 0.2M42 01:45–02:10: quality 0.3M42 02:10–02:40: quality 0.4M42 02:40–04:20: quality 0.5M42 04:20–06:05: quality 0.6M42 06:05–06:35: quality 0.3M42 06:35–07:05: quality 0.1observe M42 02:00–03:50observe M42 06:05–06:35M45M45 22:05–22:30: quality 0.2M45 22:30–00:50: quality 0.3M45 00:50–03:45: quality 0.4M45 03:45–05:35: quality 0.5M45 05:35–06:05: quality 0.6M45 06:05–06:35: quality 0.3M45 06:35–07:05: quality 0.1observe M45 23:45–02:00NGC 7000NGC 7000 19:10–19:45: quality 0.1NGC 7000 19:45–20:15: quality 0.3NGC 7000 20:15–20:55: quality 0.6NGC 7000 20:55–23:55: quality 0.5NGC 7000 23:55–02:50: quality 0.4NGC 7000 02:50–03:30: quality 0.3NGC 7000 03:30–03:45: quality 0.2observe NGC 7000 19:45–19:55observe NGC 7000 20:15–21:55V1057 CygV1057 Cyg 19:10–19:45: quality 0.1V1057 Cyg 19:45–20:15: quality 0.3V1057 Cyg 20:15–20:55: quality 0.6V1057 Cyg 20:55–23:55: quality 0.5V1057 Cyg 23:55–02:50: quality 0.4V1057 Cyg 02:50–03:30: quality 0.3V1057 Cyg 03:30–03:45: quality 0.2observe V1057 Cyg 21:55–23:45M33M33 19:45–20:10: quality 0.1M33 20:10–20:15: quality 0.2M33 20:15–03:35: quality 0.3M33 03:35–06:05: quality 0.4M33 06:05–06:35: quality 0.2M33 06:35–07:00: quality 0.1observe M33 03:50–05:40scheduleNGC 7000V1057 CygM45M42M3320:0022:0000:0002:0004:0006:00

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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–19:55 NGC 7000 0.17 0.3
19:55–20:15 — nothing worth pointing at — 0.33
20:15–21:55 NGC 7000 1.67 0.54
21:55–23:45 V1057 Cyg 1.83 0.48
23:45–02:00 M45 2.25 0.35
02:00–03:50 M42 1.83 0.45
03:50–05:40 M33 1.83 0.39
05:40–06:05 M31 0.42 0.41
06:05–06:35 M42 0.5 0.31
06:35–07:35 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 37 unknown 02:05–06:05 (marginal) 89.5° at 00:35 31.7° 0.42
M42 Great Orion Nebula 37 unknown 05:25–06:05 (good) 42.9° at 05:25 74.3° 2.33
M45 Seven Sisters 47 unknown 22:50–06:05 (marginal) 72.5° at 03:35 46.0° 2.25
NGC 7000 North America Nebula 51 unknown 20:15–03:10 (marginal) 87.2° at 20:50 59.3° 1.83
V1057 Cyg 51 unknown 20:15–03:10 (marginal) 87.3° at 20:50 59.3° 1.83
M33 Triangulum Pinwheel 36 unknown 02:25–06:05 (marginal) 79.1° at 01:25 24.2° 1.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-10-14"

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"}.