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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, 15 February 2030 · astronomical night 19:27 → 05:42 (10.24 h) · Moon 94% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:25–19:00: quality 0.1M31 19:00–19:30: quality 0.3M31 19:30–21:00: quality 0.6M31 21:00–21:25: quality 0.5M31 21:25–21:45: quality 0.4M31 21:45–22:05: quality 0.3observe M31 19:00–20:05M42M42 18:25–19:00: quality 0.1M42 19:00–19:30: quality 0.2M42 19:30–20:30: quality 0.4M42 20:30–23:20: quality 0.3M42 23:20–00:05: quality 0.2observe M42 22:15–22:30M45M45 18:25–19:00: quality 0.1M45 19:00–19:30: quality 0.3M45 19:30–21:20: quality 0.5M45 21:20–23:20: quality 0.4M45 23:20–23:50: quality 0.3M45 23:50–00:05: quality 0.2observe M45 21:10–22:15observe M45 22:30–23:35NGC 7000NGC 7000 18:25–18:35: quality 0.1NGC 7000 04:45–05:05: quality 0.4NGC 7000 05:05–05:20: quality 0.5NGC 7000 05:20–05:40: quality 0.6NGC 7000 05:40–05:45: quality 0.7NGC 7000 05:45–06:15: quality 0.4NGC 7000 06:15–06:50: quality 0.1observe NGC 7000 04:45–05:50V1057 CygV1057 Cyg 18:25–18:35: quality 0.1V1057 Cyg 04:45–05:05: quality 0.4V1057 Cyg 05:05–05:20: quality 0.5V1057 Cyg 05:20–05:40: quality 0.6V1057 Cyg 05:40–05:45: quality 0.7V1057 Cyg 05:45–06:15: quality 0.4V1057 Cyg 06:15–06:50: quality 0.1observe V1057 Cyg 05:50–06:15M33M33 18:25–19:00: quality 0.1M33 19:00–19:30: quality 0.3M33 19:30–20:45: quality 0.6M33 20:45–21:35: quality 0.5M33 21:35–21:55: quality 0.4M33 21:55–22:15: quality 0.3observe M33 20:05–21:10scheduleM31M33M45M45NGC 700018:0020:0022:0000:0002:0004:0006:00

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
17:50–19:00 — nothing worth pointing at — 1.17
19:00–20:05 M31 1.08 0.49
20:05–21:10 M33 1.08 0.56
21:10–22:15 M45 1.08 0.43
22:15–22:30 M42 0.25 0.3
22:30–23:35 M45 1.08 0.37
23:35–04:45 — nothing worth pointing at — 5.17
04:45–05:50 NGC 7000 1.08 0.51
05:50–06:15 V1057 Cyg 0.42 0.4
06:15–07:20 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 25 unknown 19:30–20:10 (good) 89.6° at 15:25 92.1° 1.08
M42 Great Orion Nebula 14 unknown 19:30–22:30 (marginal) 42.9° at 20:15 42.4° 0.25
M45 Seven Sisters 27 unknown 19:30–23:35 (marginal) 72.5° at 18:25 59.1° 2.17
NGC 7000 North America Nebula 13 unknown 05:30–05:45 (good) 87.2° at 11:35 116.6° 1.08
V1057 Cyg 13 unknown 05:30–05:45 (good) 87.3° at 11:35 116.7° 0.42
M33 Triangulum Pinwheel 26 unknown 19:30–20:00 (good) 79.1° at 16:15 86.4° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-02-15"

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"}.