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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, 30 August 2028 · astronomical night 21:35 → 05:07 (7.53 h) · Moon 86% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:55–21:00: quality 0.1M31 21:00–21:30: quality 0.2M31 21:30–21:40: quality 0.3M31 21:40–22:20: quality 0.6M31 22:20–00:00: quality 0.7M31 00:00–03:00: quality 0.8M31 03:00–03:05: quality 0.9M31 03:05–05:10: quality 1.0M31 05:10–05:45: quality 0.5M31 05:45–06:10: quality 0.2M31 06:10–06:20: quality 0.1observe M31 00:00–01:30M42M42 04:35–04:40: quality 0.4M42 04:40–04:55: quality 0.5M42 04:55–05:10: quality 0.6M42 05:10–05:20: quality 0.3M42 05:20–05:45: quality 0.4M42 05:45–06:20: quality 0.1observe M42 04:35–05:45M45M45 00:55–01:10: quality 0.4M45 01:10–01:25: quality 0.5M45 01:25–01:40: quality 0.6M45 01:40–02:05: quality 0.7M45 02:05–03:05: quality 0.8M45 03:05–03:50: quality 0.9M45 03:50–05:10: quality 1.0M45 05:10–05:45: quality 0.5M45 05:45–06:20: quality 0.2observe M45 03:00–04:35NGC 7000NGC 7000 20:30–21:00: quality 0.1NGC 7000 21:00–21:40: quality 0.3NGC 7000 21:40–02:20: quality 0.7NGC 7000 02:20–02:45: quality 0.8NGC 7000 02:45–03:05: quality 0.7NGC 7000 03:05–03:15: quality 1.0NGC 7000 03:15–04:40: quality 0.9NGC 7000 04:40–05:10: quality 0.8NGC 7000 05:10–05:45: quality 0.4NGC 7000 05:45–06:20: quality 0.1observe NGC 7000 21:00–22:30V1057 CygV1057 Cyg 20:30–21:00: quality 0.1V1057 Cyg 21:00–21:40: quality 0.3V1057 Cyg 21:40–02:25: quality 0.7V1057 Cyg 02:25–02:45: quality 0.8V1057 Cyg 02:45–03:05: quality 0.7V1057 Cyg 03:05–03:15: quality 1.0V1057 Cyg 03:15–04:40: quality 0.9V1057 Cyg 04:40–05:10: quality 0.8V1057 Cyg 05:10–05:45: quality 0.4V1057 Cyg 05:45–06:20: quality 0.1observe V1057 Cyg 22:30–00:00M33M33 22:20–22:25: quality 0.3M33 22:25–22:45: quality 0.4M33 22:45–23:00: quality 0.5M33 23:00–23:20: quality 0.6M33 23:20–00:45: quality 0.7M33 00:45–02:05: quality 0.8M33 02:05–03:05: quality 0.9M33 03:05–05:10: quality 1.0M33 05:10–05:45: quality 0.5M33 05:45–06:20: quality 0.2observe M33 01:30–03:00scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
19:55–21:00 — nothing worth pointing at — 1.08
21:00–22:30 NGC 7000 1.5 0.53
22:30–00:00 V1057 Cyg 1.5 0.68
00:00–01:30 M31 1.5 0.79
01:30–03:00 M33 1.5 0.85
03:00–04:35 M45 1.58 0.94
04:35–05:45 M42 1.17 0.45
05:45–06:50 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 21:50–05:10 (good) 89.6° at 03:25 93.7° 1.5
M42 Great Orion Nebula 9 unknown 05:05–05:10 (good) 42.9° at 08:20 139.2° 1.17
M45 Seven Sisters 96 unknown 01:30–05:10 (good) 72.5° at 06:30 126.3° 1.58
NGC 7000 North America Nebula 96 unknown 21:40–05:10 (good) 87.2° at 23:45 68.1° 1.5
V1057 Cyg 96 unknown 21:40–05:10 (good) 87.3° at 23:45 68.0° 1.5
M33 Triangulum Pinwheel 100 unknown 23:10–05:10 (good) 79.1° at 04:20 99.3° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-08-30"

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"}.