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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 Tuesday, 15 February 2028 · astronomical night 19:26 → 05:42 (10.27 h) · Moon 65% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:25–18:55: quality 0.1M31 18:55–19:30: quality 0.5M31 19:30–20:15: quality 0.9M31 20:15–21:10: quality 0.8M31 21:10–21:25: quality 0.7M31 21:25–21:40: quality 0.6M31 21:40–22:00: quality 0.5M31 22:00–22:05: quality 0.4observe M31 21:15–22:00M42M42 18:25–18:55: quality 0.1M42 18:55–19:30: quality 0.4M42 19:30–22:00: quality 0.9M42 22:00–23:10: quality 0.8M42 23:10–23:30: quality 0.7M42 23:30–23:45: quality 0.6M42 23:45–00:00: quality 0.5M42 00:00–00:05: quality 0.4observe M42 22:00–00:05M45M45 18:25–18:55: quality 0.2M45 18:55–19:30: quality 0.5M45 19:30–21:10: quality 1.0M45 21:10–22:30: quality 0.9M45 22:30–23:20: quality 0.8M45 23:20–23:30: quality 0.7M45 23:30–23:45: quality 0.6M45 23:45–00:00: quality 0.5M45 00:00–00:05: quality 0.4observe M45 20:05–21:15NGC 7000NGC 7000 18:25–18:35: quality 0.1NGC 7000 04:45–05:05: quality 0.4NGC 7000 05:05–05:25: quality 0.5NGC 7000 05:25–05:45: quality 0.6NGC 7000 05:45–05:55: quality 0.3NGC 7000 05:55–06:20: quality 0.4NGC 7000 06:20–06:50: quality 0.1observe NGC 7000 04:45–05:55V1057 CygV1057 Cyg 18:25–18:35: quality 0.1V1057 Cyg 04:50–05:05: quality 0.4V1057 Cyg 05:05–05:25: quality 0.5V1057 Cyg 05:25–05:45: quality 0.6V1057 Cyg 05:45–05:55: quality 0.3V1057 Cyg 05:55–06:20: quality 0.4V1057 Cyg 06:20–06:50: quality 0.1observe V1057 Cyg 05:55–06:20M33M33 18:25–18:40: quality 0.2M33 18:40–18:55: quality 0.1M33 18:55–19:30: quality 0.5M33 19:30–20:40: quality 0.9M33 20:40–21:25: quality 0.8M33 21:25–21:40: quality 0.7M33 21:40–21:55: quality 0.6M33 21:55–22:10: quality 0.5M33 22:10–22:15: quality 0.4observe M33 18:55–20:05scheduleM33M45M31M42NGC 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
17:50–18:55 — nothing worth pointing at — 1.08
18:55–20:05 M33 1.17 0.7
20:05–21:15 M45 1.17 0.98
21:15–22:00 M31 0.75 0.58
22:00–00:05 M42 2.08 0.72
00:05–04:45 — nothing worth pointing at — 4.67
04:45–05:55 NGC 7000 1.17 0.48
05:55–06:20 V1057 Cyg 0.42 0.36
06:20–07:20 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 51 unknown 19:30–21:35 (good) 89.7° at 15:25 149.8° 0.75
M42 Great Orion Nebula 89 unknown 19:30–23:35 (good) 42.9° at 20:15 126.2° 2.08
M45 Seven Sisters 100 unknown 19:30–23:40 (good) 72.5° at 18:30 159.8° 1.17
NGC 7000 North America Nebula 12 unknown 05:35–05:45 (good) 87.2° at 11:35 110.1° 1.17
V1057 Cyg 12 unknown 05:35–05:45 (good) 87.3° at 11:35 110.1° 0.42
M33 Triangulum Pinwheel 58 unknown 19:30–21:50 (good) 79.1° at 16:15 164.6° 1.17
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-15"

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"}.