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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 Sunday, 19 March 2028 · astronomical night 20:05 → 04:50 (8.75 h) · Moon 31% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:35: quality 0.1M31 19:35–19:40: quality 0.3M31 19:40–19:55: quality 0.2M42M42 19:05–19:35: quality 0.1M42 19:35–20:10: quality 0.4M42 20:10–21:00: quality 0.8M42 21:00–21:20: quality 0.7M42 21:20–21:35: quality 0.6M42 21:35–21:50: quality 0.5M42 21:50–21:55: quality 0.4observe M42 20:45–21:55M45M45 19:05–19:35: quality 0.1M45 19:35–19:40: quality 0.5M45 19:40–20:10: quality 0.4M45 20:10–20:20: quality 0.9M45 20:20–21:10: quality 0.8M45 21:10–21:25: quality 0.7M45 21:25–21:35: quality 0.6M45 21:35–21:50: quality 0.5M45 21:50–21:55: quality 0.4observe M45 19:40–20:45NGC 7000NGC 7000 02:35–02:45: quality 0.4NGC 7000 02:45–03:05: quality 0.5NGC 7000 03:05–03:20: quality 0.6NGC 7000 03:20–03:35: quality 0.7NGC 7000 03:35–03:45: quality 0.8NGC 7000 03:45–04:05: quality 0.7NGC 7000 04:05–04:55: quality 0.8NGC 7000 04:55–05:25: quality 0.4NGC 7000 05:25–06:00: quality 0.1observe NGC 7000 02:35–03:40V1057 CygV1057 Cyg 02:40–02:45: quality 0.4V1057 Cyg 02:45–03:05: quality 0.5V1057 Cyg 03:05–03:20: quality 0.6V1057 Cyg 03:20–03:40: quality 0.7V1057 Cyg 03:40–03:45: quality 0.8V1057 Cyg 03:45–04:05: quality 0.7V1057 Cyg 04:05–04:55: quality 0.8V1057 Cyg 04:55–05:25: quality 0.4V1057 Cyg 05:25–06:00: quality 0.1observe V1057 Cyg 03:40–05:25M33M33 19:05–19:35: quality 0.1M33 19:35–19:55: quality 0.3M33 19:55–20:05: quality 0.2observe 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 0.3
19:40–20:45 M45 1.08 0.66
20:45–21:55 M42 1.17 0.63
21:55–02:35 — nothing worth pointing at — 4.67
02:35–03:40 NGC 7000 1.08 0.57
03:40–05:25 V1057 Cyg 1.75 0.66
05:25–06:25 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 1 unknown — 89.7° at 13:15 95.5° 0.0
M42 Great Orion Nebula 32 unknown 20:10–21:25 (good) 42.9° at 18:05 139.6° 1.17
M45 Seven Sisters 34 unknown 20:10–21:30 (good) 72.5° at 16:20 127.9° 1.08
NGC 7000 North America Nebula 36 unknown 03:10–04:55 (good) 87.2° at 09:25 69.5° 1.08
V1057 Cyg 36 unknown 03:15–04:55 (good) 87.3° at 09:30 69.4° 1.75
M33 Triangulum Pinwheel 1 unknown 19:35–19:40 (marginal) 79.1° at 14:05 101.0° 0.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-03-19"

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"}.