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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, 22 October 2031 · astronomical night 20:02 → 06:08 (10.11 h) · Moon 46% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:35: quality 0.1M31 19:35–20:05: quality 0.4M31 20:05–20:50: quality 0.8M31 20:50–23:50: quality 0.9M31 23:50–03:25: quality 1.0M31 03:25–04:55: quality 0.9M31 04:55–05:45: quality 0.8M31 05:45–06:00: quality 0.7M31 06:00–06:10: quality 0.6M31 06:10–06:25: quality 0.3M31 06:25–06:45: quality 0.2observe M31 21:30–23:25observe M31 05:25–05:55M42M42 01:10–01:15: quality 0.4M42 01:15–01:30: quality 0.5M42 01:30–01:45: quality 0.6M42 01:45–02:05: quality 0.7M42 02:05–03:15: quality 0.8M42 03:15–06:10: quality 0.9M42 06:10–06:45: quality 0.4M42 06:45–07:15: quality 0.1observe M42 03:15–05:25M45M45 21:30–21:40: quality 0.4M45 21:40–21:55: quality 0.5M45 21:55–22:10: quality 0.6M45 22:10–22:25: quality 0.7M45 22:25–23:35: quality 0.8M45 23:35–00:25: quality 0.9M45 00:25–05:45: quality 1.0M45 05:45–06:10: quality 0.9M45 06:10–06:30: quality 0.5M45 06:30–06:45: quality 0.4M45 06:45–07:15: quality 0.1observe M45 01:20–03:15observe M45 06:25–06:45NGC 7000NGC 7000 19:00–19:35: quality 0.1NGC 7000 19:35–20:05: quality 0.4NGC 7000 20:05–22:45: quality 0.8NGC 7000 22:45–23:15: quality 0.9NGC 7000 23:15–23:50: quality 0.8NGC 7000 23:50–01:15: quality 0.9NGC 7000 01:15–02:10: quality 0.8NGC 7000 02:10–02:30: quality 0.7NGC 7000 02:30–02:45: quality 0.6NGC 7000 02:45–03:05: quality 0.5NGC 7000 03:05–03:10: quality 0.4observe NGC 7000 19:35–21:30V1057 CygV1057 Cyg 19:00–19:35: quality 0.1V1057 Cyg 19:35–20:05: quality 0.4V1057 Cyg 20:05–22:45: quality 0.8V1057 Cyg 22:45–23:15: quality 0.9V1057 Cyg 23:15–23:50: quality 0.8V1057 Cyg 23:50–01:15: quality 0.9V1057 Cyg 01:15–02:10: quality 0.8V1057 Cyg 02:10–02:30: quality 0.7V1057 Cyg 02:30–02:45: quality 0.6V1057 Cyg 02:45–03:05: quality 0.5V1057 Cyg 03:05–03:10: quality 0.4M33M33 19:00–19:35: quality 0.1M33 19:35–19:50: quality 0.3M33 19:50–20:05: quality 0.4M33 20:05–20:25: quality 0.7M33 20:25–21:45: quality 0.8M33 21:45–23:50: quality 0.9M33 23:50–03:55: quality 1.0M33 03:55–05:15: quality 0.9M33 05:15–06:05: quality 0.8M33 06:05–06:10: quality 0.7M33 06:10–06:40: quality 0.3M33 06:40–06:45: quality 0.2M33 06:45–06:55: quality 0.1observe M33 23:25–01:20observe M33 05:55–06:25scheduleNGC 7000M31M33M45M4220:0022:0000:0002:0004:0006:00

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
18:25–19:35 — nothing worth pointing at — 1.17
19:35–21:30 NGC 7000 1.92 0.71
21:30–23:25 M31 1.92 0.9
23:25–01:20 M33 1.92 0.98
01:20–03:15 M45 1.92 1.0
03:15–05:25 M42 2.17 0.88
05:25–05:55 M31 0.5 0.77
05:55–06:25 M33 0.5 0.54
06:25–06:45 M45 0.33 0.45
06:45–07:45 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:05–06:10 (good) 89.7° at 00:00 90.5° 2.42
M42 Great Orion Nebula 89 unknown 01:40–06:10 (good) 42.9° at 04:55 142.1° 2.17
M45 Seven Sisters 100 unknown 22:05–06:10 (good) 72.5° at 03:05 125.0° 2.25
NGC 7000 North America Nebula 94 unknown 20:05–02:35 (good) 87.2° at 20:15 63.5° 1.92
V1057 Cyg 94 unknown 20:05–02:35 (good) 87.3° at 20:15 63.4° 0.0
M33 Triangulum Pinwheel 100 unknown 20:05–06:10 (good) 79.1° at 00:50 97.0° 2.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-10-22"

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"}.