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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, 15 May 2028 · astronomical night 22:30 → 04:03 (5.55 h) · Moon 55% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 03:50–03:55: quality 0.3M31 03:55–04:05: quality 0.4M31 04:05–04:25: quality 0.2M31 04:25–04:50: quality 0.3M31 04:50–05:30: quality 0.1observe M31 03:50–04:05observe M31 04:45–04:50M42M45NGC 7000NGC 7000 23:55–00:00: quality 0.4NGC 7000 00:00–00:20: quality 0.5NGC 7000 00:20–00:35: quality 0.6NGC 7000 00:35–00:55: quality 0.7NGC 7000 00:55–01:50: quality 0.8NGC 7000 01:50–02:05: quality 0.9NGC 7000 02:05–03:00: quality 0.7NGC 7000 03:00–04:05: quality 0.8NGC 7000 04:05–04:50: quality 0.4NGC 7000 04:50–05:30: quality 0.1observe NGC 7000 23:55–01:35observe NGC 7000 04:05–04:45V1057 CygV1057 Cyg 23:55–00:05: quality 0.4V1057 Cyg 00:05–00:20: quality 0.5V1057 Cyg 00:20–00:35: quality 0.6V1057 Cyg 00:35–00:55: quality 0.7V1057 Cyg 00:55–01:50: quality 0.8V1057 Cyg 01:50–02:05: quality 0.9V1057 Cyg 02:05–03:00: quality 0.7V1057 Cyg 03:00–04:05: quality 0.8V1057 Cyg 04:05–04:50: quality 0.4V1057 Cyg 04:50–05:30: quality 0.1observe V1057 Cyg 01:35–03:50M33M33 05:25–05:30: quality 0.1scheduleNGC 7000V1057 CygNGC 700022:0000:0002:0004:0006:00

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
20:30–23:55 — nothing worth pointing at — 3.42
23:55–01:35 NGC 7000 1.67 0.67
01:35–03:50 V1057 Cyg 2.25 0.77
03:50–04:05 M31 0.25 0.36
04:05–04:45 NGC 7000 0.67 0.39
04:45–04:50 M31 0.08 0.3
04:50–06:05 — nothing worth pointing at — 1.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 3 unknown 03:50–04:05 (marginal) 89.5° at 10:25 70.5° 0.33
M42 Great Orion Nebula 0 unknown — 42.9° at 15:25 119.7° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 13:35 99.6° 0.0
NGC 7000 North America Nebula 74 unknown 00:30–04:05 (good) 87.2° at 06:45 57.5° 2.33
V1057 Cyg 74 unknown 00:30–04:05 (good) 87.3° at 06:45 57.4° 2.25
M33 Triangulum Pinwheel 0 unknown — 79.1° at 11:20 73.5° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-05-15"

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"}.