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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, 26 February 2037 · astronomical night 19:40 → 05:26 (9.77 h) · Moon 86% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:40–19:10: quality 0.1M31 19:10–19:45: quality 0.3M31 19:45–20:15: quality 0.6M31 20:15–20:40: quality 0.5M31 20:40–21:00: quality 0.4M31 21:00–21:20: quality 0.3observe M31 19:10–19:25observe M31 19:45–20:25M42M42 18:40–19:10: quality 0.1M42 19:10–19:45: quality 0.2M42 19:45–20:55: quality 0.4M42 20:55–22:50: quality 0.3M42 22:50–23:20: quality 0.2observe M42 22:15–22:25M45M45 18:40–19:10: quality 0.1M45 19:10–19:45: quality 0.3M45 19:45–20:50: quality 0.5M45 20:50–22:40: quality 0.4M45 22:40–23:05: quality 0.3M45 23:05–23:20: quality 0.2observe M45 21:20–22:15observe M45 22:25–22:55NGC 7000NGC 7000 04:00–04:20: quality 0.4NGC 7000 04:20–04:35: quality 0.5NGC 7000 04:35–04:55: quality 0.6NGC 7000 04:55–05:05: quality 0.7NGC 7000 05:05–05:30: quality 0.8NGC 7000 05:30–06:00: quality 0.4NGC 7000 06:00–06:35: quality 0.1observe NGC 7000 04:00–04:55V1057 CygV1057 Cyg 04:00–04:20: quality 0.4V1057 Cyg 04:20–04:40: quality 0.5V1057 Cyg 04:40–04:55: quality 0.6V1057 Cyg 04:55–05:05: quality 0.7V1057 Cyg 05:05–05:30: quality 0.8V1057 Cyg 05:30–06:00: quality 0.4V1057 Cyg 06:00–06:35: quality 0.1observe V1057 Cyg 04:55–06:00M33M33 18:40–19:10: quality 0.1M33 19:10–19:45: quality 0.3M33 19:45–20:05: quality 0.6M33 20:05–20:50: quality 0.5M33 20:50–21:10: quality 0.4M33 21:10–21:30: quality 0.3observe M33 20:25–21:20scheduleM33M45NGC 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
19:10–19:25 M31 0.25 0.3
19:25–19:45 — nothing worth pointing at — 0.33
19:45–20:25 M31 0.67 0.56
20:25–21:20 M33 0.92 0.43
21:20–22:15 M45 0.92 0.41
22:15–22:25 M42 0.17 0.32
22:25–22:55 M45 0.5 0.34
22:55–04:00 — nothing worth pointing at — 5.08
04:00–04:55 NGC 7000 0.92 0.5
04:55–06:00 V1057 Cyg 1.08 0.61
06:00–07:00 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 14 unknown 19:45–21:15 (marginal) 89.7° at 14:40 88.6° 0.92
M42 Great Orion Nebula 12 unknown 19:45–22:25 (marginal) 42.9° at 19:30 41.5° 0.17
M45 Seven Sisters 21 unknown 19:45–22:55 (marginal) 72.5° at 17:40 55.9° 1.42
NGC 7000 North America Nebula 24 unknown 04:45–05:30 (good) 87.2° at 10:50 113.7° 0.92
V1057 Cyg 24 unknown 04:45–05:30 (good) 87.3° at 10:50 113.8° 1.08
M33 Triangulum Pinwheel 15 unknown 19:45–21:20 (marginal) 79.2° at 15:30 83.0° 0.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-02-26"

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"}.