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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 Wednesday, 21 February 2029 · astronomical night 19:34 → 05:33 (9.99 h) · Moon 53% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:35–19:05: quality 0.1M31 19:05–19:35: quality 0.3M31 19:35–20:10: quality 0.6M31 20:10–20:55: quality 0.5M31 20:55–21:20: quality 0.4M31 21:20–21:40: quality 0.3observe M31 19:35–20:35M42M42 18:35–19:05: quality 0.1M42 19:05–19:35: quality 0.3M42 19:35–20:20: quality 0.5M42 20:20–21:55: quality 0.6M42 21:55–23:00: quality 0.5M42 23:00–23:25: quality 0.4M42 23:25–23:40: quality 0.3observe M42 22:35–23:35M45M45 18:35–19:05: quality 0.1M45 19:05–19:35: quality 0.3M45 19:35–22:05: quality 0.6M45 22:05–23:05: quality 0.5M45 23:05–23:25: quality 0.4M45 23:25–23:40: quality 0.3observe M45 21:35–22:35NGC 7000NGC 7000 04:20–04:30: quality 0.4NGC 7000 04:30–04:45: quality 0.5NGC 7000 04:45–05:05: quality 0.6NGC 7000 05:05–05:20: quality 0.7NGC 7000 05:20–05:35: quality 0.8NGC 7000 05:35–06:10: quality 0.4NGC 7000 06:10–06:40: quality 0.1observe NGC 7000 04:20–05:20V1057 CygV1057 Cyg 04:20–04:30: quality 0.4V1057 Cyg 04:30–04:45: quality 0.5V1057 Cyg 04:45–05:05: quality 0.6V1057 Cyg 05:05–05:20: quality 0.7V1057 Cyg 05:20–05:35: quality 0.8V1057 Cyg 05:35–06:10: quality 0.4V1057 Cyg 06:10–06:40: quality 0.1observe V1057 Cyg 05:20–06:10M33M33 18:35–19:05: quality 0.1M33 19:05–19:35: quality 0.3M33 19:35–19:40: quality 0.6M33 19:40–21:10: quality 0.5M33 21:10–21:30: quality 0.4M33 21:30–21:50: quality 0.3observe M33 20:35–21:35scheduleM31M33M45M42NGC 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
18:00–19:35 — nothing worth pointing at — 1.58
19:35–20:35 M31 1.0 0.55
20:35–21:35 M33 1.0 0.45
21:35–22:35 M45 1.0 0.55
22:35–23:35 M42 1.0 0.43
23:35–04:20 — nothing worth pointing at — 4.75
04:20–05:20 NGC 7000 1.0 0.57
05:20–06:10 V1057 Cyg 0.83 0.52
06:10–07:10 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 17 unknown 19:35–21:35 (marginal) 89.6° at 15:00 47.5° 1.0
M42 Great Orion Nebula 32 unknown 19:35–23:35 (marginal) 42.9° at 19:50 35.2° 1.0
M45 Seven Sisters 36 unknown 19:35–23:35 (marginal) 72.5° at 18:00 7.4° 1.0
NGC 7000 North America Nebula 22 unknown 04:55–05:35 (good) 87.2° at 11:10 86.2° 1.0
V1057 Cyg 21 unknown 04:55–05:35 (good) 87.3° at 11:10 86.2° 0.83
M33 Triangulum Pinwheel 17 unknown 19:35–21:40 (marginal) 79.1° at 15:50 36.9° 1.0

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-02-21"

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"}.