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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, 11 March 2027 · astronomical night 19:55 → 05:06 (9.19 h) · Moon 13% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:55–19:25: quality 0.1M31 19:25–19:35: quality 0.4M31 19:35–20:00: quality 0.3M31 20:00–20:15: quality 0.5M31 20:15–20:30: quality 0.4observe M31 19:25–19:50M42M42 18:55–19:25: quality 0.1M42 19:25–20:00: quality 0.4M42 20:00–21:30: quality 0.8M42 21:30–21:50: quality 0.7M42 21:50–22:10: quality 0.6M42 22:10–22:25: quality 0.5M42 22:25–22:30: quality 0.4observe M42 21:30–22:30M45M45 18:55–19:25: quality 0.1M45 19:25–20:00: quality 0.4M45 20:00–20:05: quality 0.9M45 20:05–21:35: quality 0.8M45 21:35–21:50: quality 0.7M45 21:50–22:10: quality 0.6M45 22:10–22:25: quality 0.5M45 22:25–22:30: quality 0.4observe M45 20:30–21:30NGC 7000NGC 7000 03:10–03:20: quality 0.4NGC 7000 03:20–03:40: quality 0.5NGC 7000 03:40–03:55: quality 0.6NGC 7000 03:55–04:10: quality 0.7NGC 7000 04:10–05:05: quality 0.8NGC 7000 05:05–05:10: quality 0.9NGC 7000 05:10–05:40: quality 0.4NGC 7000 05:40–06:15: quality 0.1observe NGC 7000 03:10–04:10V1057 CygV1057 Cyg 03:10–03:20: quality 0.4V1057 Cyg 03:20–03:40: quality 0.5V1057 Cyg 03:40–03:55: quality 0.6V1057 Cyg 03:55–04:10: quality 0.7V1057 Cyg 04:10–05:10: quality 0.8V1057 Cyg 05:10–05:40: quality 0.4V1057 Cyg 05:40–06:15: quality 0.1observe V1057 Cyg 04:10–05:40M33M33 18:55–19:25: quality 0.1M33 19:25–19:50: quality 0.4M33 19:50–20:00: quality 0.3M33 20:00–20:15: quality 0.6M33 20:15–20:30: quality 0.5M33 20:30–20:40: quality 0.4observe M33 19:50–20:30scheduleM33M45M42NGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

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
18:20–19:25 — nothing worth pointing at — 1.08
19:25–19:50 M31 0.42 0.34
19:50–20:30 M33 0.67 0.49
20:30–21:30 M45 1.0 0.79
21:30–22:30 M42 1.0 0.59
22:30–03:10 — nothing worth pointing at — 4.67
03:10–04:10 NGC 7000 1.0 0.56
04:10–05:40 V1057 Cyg 1.5 0.69
05:40–06:40 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 6 unknown 20:00–20:30 (marginal) 89.7° at 13:50 28.8° 0.42
M42 Great Orion Nebula 43 unknown 20:00–22:00 (good) 42.9° at 18:40 58.3° 1.0
M45 Seven Sisters 46 unknown 20:00–22:05 (good) 72.5° at 16:55 26.2° 1.0
NGC 7000 North America Nebula 36 unknown 03:45–05:10 (good) 87.2° at 10:00 67.2° 1.0
V1057 Cyg 36 unknown 03:45–05:10 (good) 87.3° at 10:00 67.2° 1.5
M33 Triangulum Pinwheel 10 unknown 20:00–20:05 (good) 79.1° at 14:40 14.4° 0.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-03-11"

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"}.