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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 Monday, 07 February 2033 · astronomical night 19:18 → 05:51 (10.54 h) · Moon 65% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:15–18:50: quality 0.1M31 18:50–19:20: quality 0.3M31 19:20–19:50: quality 0.6M31 19:50–21:45: quality 0.5M31 21:45–22:10: quality 0.4M31 22:10–22:35: quality 0.3observe M31 19:20–20:25M42M42 18:15–18:50: quality 0.1M42 18:50–19:20: quality 0.2M42 19:20–20:10: quality 0.4M42 20:10–23:40: quality 0.5M42 23:40–00:10: quality 0.4M42 00:10–00:35: quality 0.3observe M42 22:35–00:25M45M45 18:15–18:50: quality 0.1M45 18:50–19:20: quality 0.3M45 19:20–23:50: quality 0.5M45 23:50–00:15: quality 0.4M45 00:15–00:35: quality 0.3observe M45 21:30–22:35NGC 7000NGC 7000 18:15–18:50: quality 0.1NGC 7000 18:50–19:05: quality 0.2NGC 7000 05:15–05:25: quality 0.4NGC 7000 05:25–05:40: quality 0.5NGC 7000 05:40–05:55: quality 0.6NGC 7000 05:55–06:05: quality 0.3NGC 7000 06:05–06:25: quality 0.4NGC 7000 06:25–07:00: quality 0.1observe NGC 7000 05:15–06:20V1057 CygV1057 Cyg 18:15–18:50: quality 0.1V1057 Cyg 18:50–19:05: quality 0.2V1057 Cyg 05:15–05:25: quality 0.4V1057 Cyg 05:25–05:40: quality 0.5V1057 Cyg 05:40–05:55: quality 0.6V1057 Cyg 05:55–06:10: quality 0.3V1057 Cyg 06:10–06:25: quality 0.4V1057 Cyg 06:25–07:00: quality 0.1observe V1057 Cyg 06:20–06:25M33M33 18:15–18:50: quality 0.1M33 18:50–19:20: quality 0.3M33 19:20–21:55: quality 0.5M33 21:55–22:20: quality 0.4M33 22:20–22:45: quality 0.3observe M33 20:25–21:30scheduleM31M33M45M42NGC 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
17:40–19:20 — nothing worth pointing at — 1.67
19:20–20:25 M31 1.08 0.55
20:25–21:30 M33 1.08 0.49
21:30–22:35 M45 1.08 0.51
22:35–00:25 M42 1.83 0.44
00:25–05:15 — nothing worth pointing at — 4.83
05:15–06:20 NGC 7000 1.08 0.45
06:20–06:25 V1057 Cyg 0.08 0.39
06:25–07:30 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 25 unknown 19:20–22:25 (marginal) 89.6° at 15:55 51.8° 1.08
M42 Great Orion Nebula 30 unknown 19:20–00:25 (marginal) 42.9° at 20:45 29.7° 1.83
M45 Seven Sisters 35 unknown 19:20–00:25 (marginal) 72.6° at 18:55 10.1° 1.08
NGC 7000 North America Nebula 10 unknown 05:50–05:55 (good) 87.2° at 12:10 91.3° 1.08
V1057 Cyg 10 unknown 05:50–05:55 (good) 87.3° at 12:10 91.3° 0.08
M33 Triangulum Pinwheel 24 unknown 19:20–22:30 (marginal) 79.1° at 16:45 39.8° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2033-02-07"

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"}.