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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 Saturday, 13 November 2027 · astronomical night 18:38 → 05:32 (10.89 h) · Moon 100% (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 18:40–20:30: quality 0.4M31 20:30–03:30: quality 0.3M31 03:30–04:15: quality 0.2M42M42 22:40–22:45: quality 0.1M42 22:45–23:35: quality 0.2M42 23:35–02:30: quality 0.3M42 02:30–05:35: quality 0.4M42 05:35–05:55: quality 0.2M42 05:55–06:10: quality 0.1observe M42 00:50–02:55M45M45 19:05–19:45: quality 0.2M45 19:45–21:35: quality 0.3M45 21:35–01:30: quality 0.2M45 01:30–04:45: quality 0.3M45 04:45–05:25: quality 0.4M45 05:25–05:35: quality 0.3M45 05:35–05:45: quality 0.2M45 05:45–06:10: quality 0.1observe M45 02:55–05:35NGC 7000NGC 7000 17:35–18:10: quality 0.1NGC 7000 18:10–18:40: quality 0.3NGC 7000 18:40–18:55: quality 0.7NGC 7000 18:55–21:10: quality 0.6NGC 7000 21:10–23:00: quality 0.5NGC 7000 23:00–00:00: quality 0.4NGC 7000 00:00–00:35: quality 0.3NGC 7000 00:35–00:45: quality 0.2observe NGC 7000 18:10–20:00V1057 CygV1057 Cyg 17:35–18:10: quality 0.1V1057 Cyg 18:10–18:40: quality 0.3V1057 Cyg 18:40–18:55: quality 0.7V1057 Cyg 18:55–21:10: quality 0.6V1057 Cyg 21:10–23:00: quality 0.5V1057 Cyg 23:00–00:00: quality 0.4V1057 Cyg 00:00–00:35: quality 0.3V1057 Cyg 00:35–00:45: quality 0.2observe V1057 Cyg 20:00–00:15M33M33 17:35–18:10: quality 0.1M33 18:10–18:40: quality 0.2M33 18:40–19:55: quality 0.4M33 19:55–22:10: quality 0.3M33 22:10–02:30: quality 0.2M33 02:30–03:40: quality 0.3M33 03:40–04:25: quality 0.2scheduleNGC 7000V1057 CygM42M4518:0020:0022:0000:0002:0004:0006:00

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
18:10–20:00 NGC 7000 1.83 0.55
20:00–00:15 V1057 Cyg 4.25 0.49
00:15–00:50 — nothing worth pointing at — 0.58
00:50–02:55 M42 2.08 0.33
02:55–05:35 M45 2.67 0.33
05:35–07:10 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 18:40–21:35 (marginal) 89.7° at 21:35 34.3° 0.0
M42 Great Orion Nebula 25 unknown 00:50–05:35 (marginal) 42.9° at 02:25 47.2° 2.08
M45 Seven Sisters 26 unknown 02:55–05:35 (marginal) 72.5° at 00:40 11.3° 2.67
NGC 7000 North America Nebula 54 unknown 18:40–20:15 (good) 87.3° at 17:50 74.7° 1.83
V1057 Cyg 54 unknown 18:40–20:15 (good) 87.3° at 17:50 74.7° 4.25
M33 Triangulum Pinwheel 27 unknown 18:40–20:55 (marginal) 79.1° at 22:25 20.7° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-13"

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"}.