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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, 01 August 2028 · astronomical night 22:31 → 04:23 (5.88 h) · Moon 89% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 22:45–23:05: quality 0.4M31 23:05–23:20: quality 0.5M31 23:20–23:40: quality 0.6M31 23:40–00:35: quality 0.7M31 00:35–02:00: quality 0.8M31 02:00–03:05: quality 0.9M31 03:05–04:25: quality 1.0M31 04:25–05:10: quality 0.5M31 05:10–05:50: quality 0.2observe M31 00:50–02:20M42M45M45 02:50–03:00: quality 0.4M45 03:00–03:10: quality 0.5M45 03:10–03:25: quality 0.6M45 03:25–03:40: quality 0.7M45 03:40–04:25: quality 0.8M45 04:25–05:05: quality 0.4M45 05:05–05:10: quality 0.5M45 05:10–05:50: quality 0.1observe M45 03:50–05:10NGC 7000NGC 7000 21:10–21:50: quality 0.1NGC 7000 21:50–22:20: quality 0.3NGC 7000 22:20–22:35: quality 0.4NGC 7000 22:35–00:55: quality 0.7NGC 7000 00:55–03:05: quality 0.8NGC 7000 03:05–04:25: quality 1.0NGC 7000 04:25–05:10: quality 0.5NGC 7000 05:10–05:50: quality 0.1observe NGC 7000 21:50–23:20V1057 CygV1057 Cyg 21:10–21:50: quality 0.1V1057 Cyg 21:50–22:20: quality 0.3V1057 Cyg 22:20–22:35: quality 0.4V1057 Cyg 22:35–00:55: quality 0.7V1057 Cyg 00:55–03:05: quality 0.8V1057 Cyg 03:05–04:25: quality 1.0V1057 Cyg 04:25–05:10: quality 0.5V1057 Cyg 05:10–05:50: quality 0.1observe V1057 Cyg 23:20–00:50M33M33 00:15–00:30: quality 0.4M33 00:30–00:45: quality 0.5M33 00:45–01:00: quality 0.6M33 01:00–01:30: quality 0.7M33 01:30–02:50: quality 0.8M33 02:50–03:15: quality 0.9M33 03:15–04:25: quality 1.0M33 04:25–05:10: quality 0.5M33 05:10–05:50: quality 0.2observe M33 02:20–03:50scheduleNGC 7000V1057 CygM31M33M4522:0000:0002:0004:0006:00

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
20:35–21:50 — nothing worth pointing at — 1.25
21:50–23:20 NGC 7000 1.5 0.54
23:20–00:50 V1057 Cyg 1.5 0.74
00:50–02:20 M31 1.5 0.82
02:20–03:50 M33 1.5 0.9
03:50–05:10 M45 1.33 0.61
05:10–06:20 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 23:30–04:25 (good) 89.7° at 05:20 112.9° 1.5
M42 Great Orion Nebula 0 unknown — 42.9° at 10:10 148.3° 0.0
M45 Seven Sisters 32 unknown 03:20–04:25 (good) 72.5° at 08:25 148.2° 1.33
NGC 7000 North America Nebula 100 unknown 22:35–04:25 (good) 87.2° at 01:35 80.0° 1.5
V1057 Cyg 100 unknown 22:35–04:25 (good) 87.3° at 01:35 80.0° 1.5
M33 Triangulum Pinwheel 95 unknown 00:55–04:25 (good) 79.1° at 06:10 120.5° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-08-01"

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"}.