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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, 05 December 2041 · astronomical night 18:30 → 05:53 (11.4 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.2M31 18:35–20:35: quality 0.4M31 20:35–02:15: quality 0.3M31 02:15–02:50: quality 0.2observe M31 21:40–23:30M42M42 21:15–22:05: quality 0.2M42 22:05–01:05: quality 0.3M42 01:05–04:10: quality 0.4M42 04:10–04:45: quality 0.3M42 04:45–04:50: quality 0.2observe M42 23:30–01:20observe M42 04:20–04:30M45M45 18:00–18:25: quality 0.1M45 18:25–18:35: quality 0.2M45 18:35–02:30: quality 0.3M45 02:30–04:05: quality 0.4M45 04:05–04:40: quality 0.3M45 04:40–04:50: quality 0.2observe M45 01:20–04:20NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–18:50: quality 0.7NGC 7000 18:50–20:30: quality 0.6NGC 7000 20:30–22:15: quality 0.5NGC 7000 22:15–22:45: quality 0.4NGC 7000 22:45–23:15: quality 0.3NGC 7000 23:15–23:20: quality 0.2observe NGC 7000 18:00–19:50V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–18:50: quality 0.7V1057 Cyg 18:50–20:30: quality 0.6V1057 Cyg 20:30–22:15: quality 0.5V1057 Cyg 22:15–22:40: quality 0.4V1057 Cyg 22:40–23:15: quality 0.3observe V1057 Cyg 19:50–21:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–19:20: quality 0.4M33 19:20–02:20: quality 0.3M33 02:20–03:00: quality 0.2scheduleNGC 7000V1057 CygM31M42M4518:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:50 NGC 7000 1.83 0.54
19:50–21:40 V1057 Cyg 1.83 0.54
21:40–23:30 M31 1.83 0.32
23:30–01:20 M42 1.83 0.33
01:20–04:20 M45 3.0 0.35
04:20–04:30 M42 0.17 0.31
04:30–07:35 — nothing worth pointing at — 3.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 31 unknown 18:35–01:50 (marginal) 89.7° at 20:05 38.6° 1.83
M42 Great Orion Nebula 26 unknown 23:20–04:30 (marginal) 42.9° at 01:00 42.9° 2.0
M45 Seven Sisters 30 unknown 00:40–04:20 (marginal) 72.5° at 23:10 9.2° 3.0
NGC 7000 North America Nebula 44 unknown 18:35–19:40 (good) 87.2° at 16:20 79.0° 1.83
V1057 Cyg 43 unknown 18:35–19:40 (good) 87.2° at 16:20 79.0° 1.83
M33 Triangulum Pinwheel 25 unknown 18:35–20:30 (marginal) 79.2° at 20:55 25.0° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-12-05"

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"}.