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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 Thursday, 16 March 2028 · astronomical night 20:02 → 04:56 (8.9 h) · Moon 60% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:30: quality 0.1M31 19:30–19:50: quality 0.3M31 19:50–20:05: quality 0.2M31 20:05–20:10: quality 0.4M42M42 19:00–19:30: quality 0.1M42 19:30–20:05: quality 0.4M42 20:05–21:15: quality 0.8M42 21:15–21:30: quality 0.7M42 21:30–21:45: quality 0.6M42 21:45–22:00: quality 0.5M42 22:00–22:10: quality 0.4observe M42 20:45–22:10M45M45 19:00–19:30: quality 0.1M45 19:30–19:55: quality 0.5M45 19:55–20:05: quality 0.4M45 20:05–20:35: quality 0.9M45 20:35–21:20: quality 0.8M45 21:20–21:35: quality 0.7M45 21:35–21:50: quality 0.6M45 21:50–22:00: quality 0.5M45 22:00–22:10: quality 0.4observe M45 19:50–20:45NGC 7000NGC 7000 02:50–03:10: quality 0.4NGC 7000 03:10–03:30: quality 0.5NGC 7000 03:30–03:50: quality 0.6NGC 7000 03:50–05:00: quality 0.7NGC 7000 05:00–05:30: quality 0.4NGC 7000 05:30–06:05: quality 0.1observe NGC 7000 02:50–03:45V1057 CygV1057 Cyg 02:50–03:10: quality 0.4V1057 Cyg 03:10–03:30: quality 0.5V1057 Cyg 03:30–03:50: quality 0.6V1057 Cyg 03:50–05:00: quality 0.7V1057 Cyg 05:00–05:30: quality 0.4V1057 Cyg 05:30–06:05: quality 0.1observe V1057 Cyg 03:45–05:30M33M33 19:00–19:30: quality 0.1M33 19:30–19:35: quality 0.4M33 19:35–20:05: quality 0.3M33 20:05–20:10: quality 0.5M33 20:10–20:20: quality 0.4observe M33 19:30–19:50scheduleM45M42NGC 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
18:25–19:30 — nothing worth pointing at — 1.08
19:30–19:50 M33 0.33 0.34
19:50–20:45 M45 0.92 0.75
20:45–22:10 M42 1.42 0.65
22:10–02:50 — nothing worth pointing at — 4.67
02:50–03:45 NGC 7000 0.92 0.48
03:45–05:30 V1057 Cyg 1.75 0.61
05:30–06:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 2 unknown 20:05–20:10 (marginal) 89.5° at 13:25 127.2° 0.0
M42 Great Orion Nebula 38 unknown 20:05–21:40 (good) 42.9° at 18:20 146.7° 1.42
M45 Seven Sisters 41 unknown 20:05–21:40 (good) 72.5° at 16:30 165.0° 0.92
NGC 7000 North America Nebula 29 unknown 03:40–05:00 (good) 87.2° at 09:40 90.3° 0.92
V1057 Cyg 29 unknown 03:40–05:00 (good) 87.3° at 09:40 90.3° 1.75
M33 Triangulum Pinwheel 4 unknown 20:05–20:20 (marginal) 79.1° at 14:20 136.6° 0.33

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-03-16"

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"}.