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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 Friday, 17 March 2028 · astronomical night 20:03 → 04:54 (8.85 h) · Moon 50% (last quarter) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:35: quality 0.1M31 19:35–19:50: quality 0.3M31 19:50–20:05: quality 0.2M42M42 19:00–19:35: quality 0.1M42 19:35–20:05: quality 0.4M42 20:05–21:10: quality 0.8M42 21:10–21:25: quality 0.7M42 21:25–21:40: quality 0.6M42 21:40–21:55: quality 0.5M42 21:55–22:05: quality 0.4observe M42 20:50–22:05M45M45 19:00–19:35: quality 0.1M45 19:35–19:50: quality 0.5M45 19:50–20:05: quality 0.4M45 20:05–20:30: quality 0.9M45 20:30–21:15: quality 0.8M45 21:15–21:30: quality 0.7M45 21:30–21:45: quality 0.6M45 21:45–22:00: quality 0.5M45 22:00–22:05: quality 0.4observe M45 19:45–20:50NGC 7000NGC 7000 02:45–03:05: quality 0.4NGC 7000 03:05–03:25: quality 0.5NGC 7000 03:25–03:45: quality 0.6NGC 7000 03:45–04:55: quality 0.7NGC 7000 04:55–05:30: quality 0.4NGC 7000 05:30–06:00: quality 0.1observe NGC 7000 02:45–03:50V1057 CygV1057 Cyg 02:45–03:05: quality 0.4V1057 Cyg 03:05–03:25: quality 0.5V1057 Cyg 03:25–03:45: quality 0.6V1057 Cyg 03:45–04:55: quality 0.7V1057 Cyg 04:55–05:30: quality 0.4V1057 Cyg 05:30–06:00: quality 0.1observe V1057 Cyg 03:50–05:30M33M33 19:00–19:35: quality 0.1M33 19:35–20:00: quality 0.3M33 20:00–20:05: quality 0.2M33 20:05–20:10: quality 0.5M33 20:10–20:15: quality 0.4observe M33 19:35–19:45scheduleM45M42NGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

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
18:30–19:35 — nothing worth pointing at — 1.08
19:35–19:45 M33 0.17 0.32
19:45–20:50 M45 1.08 0.73
20:50–22:05 M42 1.25 0.63
22:05–02:45 — nothing worth pointing at — 4.67
02:45–03:50 NGC 7000 1.08 0.51
03:50–05:30 V1057 Cyg 1.67 0.6
05:30–06:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 1 unknown — 89.6° at 13:25 116.7° 0.0
M42 Great Orion Nebula 36 unknown 20:05–21:35 (good) 42.9° at 18:15 148.2° 1.25
M45 Seven Sisters 39 unknown 20:05–21:35 (good) 72.5° at 16:25 152.4° 1.08
NGC 7000 North America Nebula 30 unknown 03:35–04:55 (good) 87.3° at 09:35 82.9° 1.08
V1057 Cyg 30 unknown 03:35–04:55 (good) 87.3° at 09:35 82.8° 1.67
M33 Triangulum Pinwheel 3 unknown 20:05–20:15 (marginal) 79.1° at 14:15 124.6° 0.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-03-17"

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"}.