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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, 07 March 2031 · astronomical night 19:50 → 05:13 (9.38 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:50–19:20: quality 0.1M31 19:20–19:45: quality 0.4M31 19:45–19:55: quality 0.3M31 19:55–20:10: quality 0.6M31 20:10–20:30: quality 0.5M31 20:30–20:45: quality 0.4observe M31 19:20–20:20M42M42 18:50–19:20: quality 0.1M42 19:20–19:55: quality 0.3M42 19:55–21:40: quality 0.5M42 21:40–22:10: quality 0.4M42 22:10–22:40: quality 0.3M42 22:40–22:45: quality 0.2observe M42 22:00–22:25M45M45 18:50–19:20: quality 0.1M45 19:20–19:50: quality 0.4M45 19:50–19:55: quality 0.3M45 19:55–20:30: quality 0.7M45 20:30–21:55: quality 0.6M45 21:55–22:15: quality 0.5M45 22:15–22:30: quality 0.4M45 22:30–22:45: quality 0.3observe M45 21:00–22:00observe M45 22:25–22:40NGC 7000NGC 7000 03:25–03:45: quality 0.4NGC 7000 03:45–04:05: quality 0.5NGC 7000 04:05–04:25: quality 0.6NGC 7000 04:25–05:00: quality 0.7NGC 7000 05:00–05:15: quality 0.8NGC 7000 05:15–05:50: quality 0.4NGC 7000 05:50–06:20: quality 0.1observe NGC 7000 03:25–04:25V1057 CygV1057 Cyg 03:30–03:45: quality 0.4V1057 Cyg 03:45–04:05: quality 0.5V1057 Cyg 04:05–04:25: quality 0.6V1057 Cyg 04:25–05:00: quality 0.7V1057 Cyg 05:00–05:15: quality 0.8V1057 Cyg 05:15–05:50: quality 0.4V1057 Cyg 05:50–06:20: quality 0.1observe V1057 Cyg 04:25–05:50M33M33 18:50–19:20: quality 0.1M33 19:20–19:55: quality 0.4M33 19:55–20:10: quality 0.7M33 20:10–20:25: quality 0.6M33 20:25–20:40: quality 0.5M33 20:40–20:55: quality 0.4M33 20:55–21:00: quality 0.3observe M33 20:20–21:00scheduleM31M45NGC 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
18:15–19:20 — nothing worth pointing at — 1.08
19:20–20:20 M31 1.0 0.44
20:20–21:00 M33 0.67 0.45
21:00–22:00 M45 1.0 0.58
22:00–22:25 M42 0.42 0.34
22:25–22:40 M45 0.25 0.35
22:40–03:25 — nothing worth pointing at — 4.75
03:25–04:25 NGC 7000 1.0 0.5
04:25–05:50 V1057 Cyg 1.42 0.59
05:50–06:50 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 10 unknown 19:55–20:00 (good) 89.7° at 14:05 121.2° 1.0
M42 Great Orion Nebula 19 unknown 19:55–22:25 (marginal) 42.9° at 18:55 69.4° 0.42
M45 Seven Sisters 32 unknown 19:55–21:15 (good) 72.5° at 17:10 92.8° 1.25
NGC 7000 North America Nebula 27 unknown 04:15–05:15 (good) 87.2° at 10:20 127.2° 1.0
V1057 Cyg 26 unknown 04:15–05:15 (good) 87.3° at 10:20 127.3° 1.42
M33 Triangulum Pinwheel 15 unknown 19:55–20:15 (good) 79.1° at 14:55 119.0° 0.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-03-07"

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"}.