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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 Saturday, 25 October 2031 · astronomical night 19:58 → 05:12 (10.23 h) · Moon 78% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:55–19:30: quality 0.1M31 19:30–20:00: quality 0.3M31 20:00–00:35: quality 0.6M31 00:35–03:20: quality 0.7M31 03:20–03:40: quality 0.9M31 03:40–04:35: quality 0.8M31 04:35–04:50: quality 0.7M31 04:50–05:05: quality 0.6M31 05:05–05:15: quality 0.5M31 05:15–05:30: quality 0.2observe M31 03:25–04:20M42M42 00:55–01:15: quality 0.4M42 01:15–01:30: quality 0.5M42 01:30–01:50: quality 0.6M42 01:50–02:50: quality 0.7M42 02:50–03:20: quality 0.8M42 03:20–05:15: quality 0.9M42 05:15–05:45: quality 0.4M42 05:45–06:20: quality 0.1observe M42 04:20–05:45M45M45 21:20–21:30: quality 0.3M45 21:30–21:50: quality 0.4M45 21:50–22:10: quality 0.5M45 22:10–23:20: quality 0.6M45 23:20–00:45: quality 0.7M45 00:45–03:20: quality 0.8M45 03:20–04:35: quality 1.0M45 04:35–05:15: quality 0.9M45 05:15–05:45: quality 0.4M45 05:45–06:20: quality 0.1observe M45 23:35–01:30NGC 7000NGC 7000 18:55–19:30: quality 0.1NGC 7000 19:30–20:00: quality 0.3NGC 7000 20:00–01:45: quality 0.6NGC 7000 01:45–02:20: quality 0.5NGC 7000 02:20–02:45: quality 0.4NGC 7000 02:45–03:00: quality 0.3observe NGC 7000 19:30–19:45observe NGC 7000 20:00–21:40V1057 CygV1057 Cyg 18:55–19:30: quality 0.1V1057 Cyg 19:30–20:00: quality 0.3V1057 Cyg 20:00–01:45: quality 0.6V1057 Cyg 01:45–02:20: quality 0.5V1057 Cyg 02:20–02:45: quality 0.4V1057 Cyg 02:45–03:00: quality 0.3observe V1057 Cyg 21:40–23:35M33M33 19:00–19:30: quality 0.1M33 19:30–19:50: quality 0.2M33 19:50–20:00: quality 0.3M33 20:00–21:10: quality 0.5M33 21:10–00:25: quality 0.6M33 00:25–03:00: quality 0.7M33 03:00–03:10: quality 0.8M33 03:10–03:20: quality 0.7M33 03:20–03:45: quality 1.0M33 03:45–04:05: quality 0.9M33 04:05–04:50: quality 0.8M33 04:50–05:05: quality 0.7M33 05:05–05:15: quality 0.6M33 05:15–05:25: quality 0.3M33 05:25–05:40: quality 0.2observe M33 01:30–03:25scheduleNGC 7000V1057 CygM45M33M31M4220:0022:0000:0002:0004:0006:00

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
19:30–19:45 NGC 7000 0.25 0.3
19:45–20:00 — nothing worth pointing at — 0.25
20:00–21:40 NGC 7000 1.67 0.59
21:40–23:35 V1057 Cyg 1.92 0.59
23:35–01:30 M45 1.92 0.73
01:30–03:25 M33 1.92 0.73
03:25–04:20 M31 1.92 0.87
04:20–05:45 M42 1.42 0.71
05:45–06:50 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 94 unknown 22:20–05:00 (good) 89.7° at 23:50 55.4° 1.92
M42 Great Orion Nebula 89 unknown 01:40–05:15 (good) 42.9° at 03:40 106.8° 1.42
M45 Seven Sisters 100 unknown 22:35–05:15 (good) 72.5° at 02:55 82.9° 1.92
NGC 7000 North America Nebula 59 unknown 20:00–03:00 (marginal) 87.2° at 20:05 52.5° 1.92
V1057 Cyg 59 unknown 20:00–03:00 (marginal) 87.3° at 20:05 52.5° 1.92
M33 Triangulum Pinwheel 98 unknown 22:15–05:15 (good) 79.1° at 00:40 57.0° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-10-25"

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"}.