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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 Saturday, 18 March 2028 · astronomical night 20:04 → 04:52 (8.8 h) · Moon 41% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:35: quality 0.1M31 19:35–19:45: quality 0.3M31 19:45–20:00: quality 0.2M42M42 19:00–19:35: quality 0.1M42 19:35–20:05: quality 0.4M42 20:05–21:05: quality 0.8M42 21:05–21:20: quality 0.7M42 21:20–21:40: quality 0.6M42 21:40–21:55: quality 0.5M42 21:55–22:00: quality 0.4observe M42 20:45–22:00M45M45 19:00–19:35: quality 0.1M45 19:35–19:45: quality 0.5M45 19:45–20:05: quality 0.4M45 20:05–20:25: quality 0.9M45 20:25–21:15: quality 0.8M45 21:15–21:25: quality 0.7M45 21:25–21:40: quality 0.6M45 21:40–21:55: quality 0.5M45 21:55–22:00: quality 0.4observe M45 19:40–20:45NGC 7000NGC 7000 02:40–02:50: quality 0.4NGC 7000 02:50–03:20: quality 0.5NGC 7000 03:20–03:35: quality 0.6NGC 7000 03:35–04:35: quality 0.7NGC 7000 04:35–04:55: quality 0.8NGC 7000 04:55–05:30: quality 0.4NGC 7000 05:30–06:00: quality 0.1observe NGC 7000 02:40–03:45V1057 CygV1057 Cyg 02:40–02:50: quality 0.4V1057 Cyg 02:50–03:20: quality 0.5V1057 Cyg 03:20–03:40: quality 0.6V1057 Cyg 03:40–04:35: quality 0.7V1057 Cyg 04:35–04:55: quality 0.8V1057 Cyg 04:55–05:30: quality 0.4V1057 Cyg 05:30–06:00: quality 0.1observe V1057 Cyg 03:45–05:30M33M33 19:00–19:35: quality 0.1M33 19:35–19:55: quality 0.3M33 19:55–20:05: quality 0.2M33 20:05–20:10: quality 0.4observe M33 19:35–19:40scheduleM45M42NGC 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
19:35–19:40 M33 0.08 0.32
19:40–20:45 M45 1.08 0.7
20:45–22:00 M42 1.25 0.64
22:00–02:40 — nothing worth pointing at — 4.67
02:40–03:45 NGC 7000 1.08 0.54
03:45–05:30 V1057 Cyg 1.75 0.62
05:30–06:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 1 unknown — 89.7° at 13:20 106.1° 0.0
M42 Great Orion Nebula 34 unknown 20:05–21:30 (good) 42.9° at 18:10 145.5° 1.25
M45 Seven Sisters 37 unknown 20:05–21:35 (good) 72.5° at 16:20 140.0° 1.08
NGC 7000 North America Nebula 33 unknown 03:30–04:55 (good) 87.2° at 09:30 75.9° 1.08
V1057 Cyg 33 unknown 03:30–04:55 (good) 87.3° at 09:30 75.8° 1.75
M33 Triangulum Pinwheel 3 unknown 20:05–20:10 (marginal) 79.1° at 14:10 112.7° 0.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-03-18"

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"}.