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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 Sunday, 26 February 2040 · astronomical night 19:39 → 05:27 (9.8 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:40–19:10: quality 0.1M31 19:10–19:35: quality 0.4M31 19:35–19:40: quality 0.3M31 19:40–20:20: quality 0.7M31 20:20–20:40: quality 0.6M31 20:40–20:55: quality 0.5M31 20:55–21:15: quality 0.4M31 21:15–21:25: quality 0.3observe M31 20:10–21:10M42M42 18:40–19:10: quality 0.1M42 19:10–19:40: quality 0.3M42 19:40–21:30: quality 0.5M42 21:30–22:40: quality 0.4M42 22:40–23:10: quality 0.3M42 23:10–23:25: quality 0.2observe M42 22:10–22:55M45M45 18:40–19:10: quality 0.1M45 19:10–19:20: quality 0.4M45 19:20–19:40: quality 0.3M45 19:40–20:15: quality 0.7M45 20:15–21:40: quality 0.6M45 21:40–22:40: quality 0.5M45 22:40–23:00: quality 0.4M45 23:00–23:25: quality 0.3observe M45 21:10–22:10observe M45 22:55–23:10NGC 7000NGC 7000 04:05–04:25: quality 0.4NGC 7000 04:25–04:45: quality 0.5NGC 7000 04:45–05:05: quality 0.6NGC 7000 05:05–05:30: quality 0.7NGC 7000 05:30–06:00: quality 0.4NGC 7000 06:00–06:35: quality 0.1observe NGC 7000 04:05–05:05V1057 CygV1057 Cyg 04:05–04:25: quality 0.4V1057 Cyg 04:25–04:45: quality 0.5V1057 Cyg 04:45–05:05: quality 0.6V1057 Cyg 05:05–05:30: quality 0.7V1057 Cyg 05:30–06:00: quality 0.4V1057 Cyg 06:00–06:35: quality 0.1observe V1057 Cyg 05:05–06:00M33M33 18:40–19:10: quality 0.1M33 19:10–19:40: quality 0.4M33 19:40–20:30: quality 0.7M33 20:30–20:55: quality 0.6M33 20:55–21:10: quality 0.5M33 21:10–21:30: quality 0.4M33 21:30–21:35: quality 0.3observe M33 19:10–20:10scheduleM33M31M45M42NGC 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
18:05–19:10 — nothing worth pointing at — 1.08
19:10–20:10 M33 1.0 0.53
20:10–21:10 M31 1.0 0.54
21:10–22:10 M45 1.0 0.55
22:10–22:55 M42 0.75 0.37
22:55–23:10 M45 0.25 0.34
23:10–04:05 — nothing worth pointing at — 4.92
04:05–05:05 NGC 7000 1.0 0.5
05:05–06:00 V1057 Cyg 0.92 0.52
06:00–07:00 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 21 unknown 19:40–20:30 (good) 89.6° at 14:40 109.6° 1.0
M42 Great Orion Nebula 24 unknown 19:40–22:55 (marginal) 42.9° at 19:35 68.5° 0.75
M45 Seven Sisters 39 unknown 19:40–20:55 (good) 72.5° at 17:45 85.1° 1.25
NGC 7000 North America Nebula 19 unknown 04:55–05:30 (good) 87.2° at 10:55 116.6° 1.0
V1057 Cyg 19 unknown 04:55–05:30 (good) 87.3° at 10:55 116.6° 0.92
M33 Triangulum Pinwheel 24 unknown 19:40–20:45 (good) 79.2° at 15:35 108.8° 1.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-02-26"

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"}.