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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, 28 February 2037 · astronomical night 19:42 → 05:23 (9.68 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:40–19:15: quality 0.1M31 19:15–19:35: quality 0.4M31 19:35–19:45: quality 0.3M31 19:45–20:10: quality 0.7M31 20:10–20:30: quality 0.6M31 20:30–20:50: quality 0.5M31 20:50–21:10: quality 0.4M31 21:10–21:15: quality 0.3observe M31 20:15–21:15M42M42 18:40–19:15: quality 0.1M42 19:15–19:45: quality 0.3M42 19:45–21:15: quality 0.5M42 21:15–22:25: quality 0.4M42 22:25–23:00: quality 0.3M42 23:00–23:15: quality 0.2observe M42 22:15–22:45M45M45 18:40–19:15: quality 0.1M45 19:15–19:20: quality 0.4M45 19:20–19:45: quality 0.3M45 19:45–20:10: quality 0.7M45 20:10–21:35: quality 0.6M45 21:35–22:30: quality 0.5M45 22:30–22:50: quality 0.4M45 22:50–23:15: quality 0.3observe M45 21:15–22:15observe M45 22:45–23:00NGC 7000NGC 7000 03:55–04:10: quality 0.4NGC 7000 04:10–04:30: quality 0.5NGC 7000 04:30–04:50: quality 0.6NGC 7000 04:50–05:25: quality 0.7NGC 7000 05:25–06:00: quality 0.4NGC 7000 06:00–06:30: quality 0.1observe NGC 7000 03:55–04:55V1057 CygV1057 Cyg 03:55–04:15: quality 0.4V1057 Cyg 04:15–04:30: quality 0.5V1057 Cyg 04:30–04:50: quality 0.6V1057 Cyg 04:50–05:25: quality 0.7V1057 Cyg 05:25–06:00: quality 0.4V1057 Cyg 06:00–06:30: quality 0.1observe V1057 Cyg 04:55–06:00M33M33 18:40–19:15: quality 0.1M33 19:15–19:45: quality 0.4M33 19:45–20:25: quality 0.7M33 20:25–20:45: quality 0.6M33 20:45–21:00: quality 0.5M33 21:00–21:20: quality 0.4M33 21:20–21:25: quality 0.3observe M33 19:15–20:15scheduleM33M31M45NGC 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
18:10–19:15 — nothing worth pointing at — 1.08
19:15–20:15 M33 1.0 0.52
20:15–21:15 M31 1.0 0.47
21:15–22:15 M45 1.0 0.54
22:15–22:45 M42 0.5 0.34
22:45–23:00 M45 0.25 0.34
23:00–03:55 — nothing worth pointing at — 4.92
03:55–04:55 NGC 7000 1.0 0.52
04:55–06:00 V1057 Cyg 1.08 0.54
06:00–07:00 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 18 unknown 19:45–20:20 (good) 89.7° at 14:30 111.7° 1.0
M42 Great Orion Nebula 21 unknown 19:45–22:45 (marginal) 42.9° at 19:25 66.8° 0.5
M45 Seven Sisters 35 unknown 19:45–20:50 (good) 72.5° at 17:35 85.5° 1.25
NGC 7000 North America Nebula 22 unknown 04:40–05:25 (good) 87.2° at 10:45 119.8° 1.0
V1057 Cyg 22 unknown 04:40–05:25 (good) 87.3° at 10:45 119.9° 1.08
M33 Triangulum Pinwheel 21 unknown 19:45–20:35 (good) 79.1° at 15:20 110.2° 1.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-02-28"

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"}.