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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 Wednesday, 04 December 2041 · astronomical night 18:30 → 05:53 (11.38 h) · Moon 90% (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 18:35–21:10: quality 0.4M31 21:10–22:15: quality 0.3M31 22:15–02:00: quality 0.4M31 02:00–02:40: quality 0.3M31 02:40–02:50: quality 0.2observe M31 21:40–23:30M42M42 21:15–21:40: quality 0.2M42 21:40–22:15: quality 0.3M42 22:15–00:35: quality 0.4M42 00:35–04:10: quality 0.5M42 04:10–04:35: quality 0.4M42 04:35–04:45: quality 0.3M42 04:45–04:50: quality 0.4observe M42 23:30–01:20observe M42 04:40–04:50M45M45 18:00–18:25: quality 0.1M45 18:25–18:35: quality 0.2M45 18:35–23:35: quality 0.3M45 23:35–02:35: quality 0.4M45 02:35–04:05: quality 0.5M45 04:05–04:30: quality 0.4M45 04:30–04:45: quality 0.3M45 04:45–04:50: quality 0.4observe M45 02:35–04:40NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–20:15: quality 0.6NGC 7000 20:15–22:20: quality 0.5NGC 7000 22:20–22:45: quality 0.4NGC 7000 22:45–23:20: quality 0.3observe NGC 7000 18:00–19:50V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–20:15: quality 0.6V1057 Cyg 20:15–22:20: quality 0.5V1057 Cyg 22:20–22:45: quality 0.4V1057 Cyg 22:45–23:20: quality 0.3observe V1057 Cyg 19:50–21:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–19:55: quality 0.4M33 19:55–00:10: quality 0.3M33 00:10–02:15: quality 0.4M33 02:15–02:50: quality 0.3M33 02:50–03:05: quality 0.2observe M33 01:20–02:35scheduleNGC 7000V1057 CygM31M42M33M4518:0020:0022:0000:0002:0004:0006:00

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 0.52
19:50–21:40 V1057 Cyg 1.83 0.53
21:40–23:30 M31 1.83 0.35
23:30–01:20 M42 1.83 0.44
01:20–02:35 M33 1.25 0.36
02:35–04:40 M45 2.08 0.44
04:40–04:50 M42 0.17 0.38
04:50–07:35 — nothing worth pointing at — 2.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 18:35–02:20 (marginal) 89.8° at 20:10 34.3° 1.83
M42 Great Orion Nebula 43 unknown 21:55–04:50 (marginal) 42.9° at 01:00 52.5° 2.0
M45 Seven Sisters 46 unknown 18:35–04:40 (marginal) 72.5° at 23:15 23.1° 2.08
NGC 7000 North America Nebula 41 unknown 18:35–19:25 (good) 87.2° at 16:25 73.1° 1.83
V1057 Cyg 41 unknown 18:35–19:25 (good) 87.3° at 16:25 73.1° 1.83
M33 Triangulum Pinwheel 30 unknown 18:35–02:35 (marginal) 79.2° at 21:00 19.6° 1.25
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-12-04"

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"}.