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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, 30 October 2042 · astronomical night 18:51 → 05:17 (10.43 h) · Moon 93% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:20: quality 0.1M31 18:20–18:55: quality 0.3M31 18:55–20:45: quality 0.6M31 20:45–22:50: quality 0.5M31 22:50–02:15: quality 0.4M31 02:15–04:40: quality 0.3M31 04:40–05:10: quality 0.2observe M31 22:00–23:35observe M31 00:10–00:40observe M31 02:05–04:15M42M42 23:35–23:40: quality 0.1M42 23:40–00:35: quality 0.2M42 00:35–05:20: quality 0.3M42 05:20–05:55: quality 0.2observe M42 04:20–05:20M45M45 20:00–20:10: quality 0.2M45 20:10–20:45: quality 0.3M45 20:45–22:05: quality 0.4M45 22:05–05:20: quality 0.3M45 05:20–05:55: quality 0.2observe M45 23:35–00:10NGC 7000NGC 7000 17:50–18:20: quality 0.2NGC 7000 18:20–18:55: quality 0.4NGC 7000 18:55–20:15: quality 0.8NGC 7000 20:15–22:15: quality 0.7NGC 7000 22:15–23:50: quality 0.6NGC 7000 23:50–00:45: quality 0.5NGC 7000 00:45–01:15: quality 0.4NGC 7000 01:15–01:40: quality 0.3observe NGC 7000 18:20–20:10V1057 CygV1057 Cyg 17:50–18:20: quality 0.2V1057 Cyg 18:20–18:55: quality 0.4V1057 Cyg 18:55–20:15: quality 0.8V1057 Cyg 20:15–22:15: quality 0.7V1057 Cyg 22:15–23:50: quality 0.6V1057 Cyg 23:50–00:45: quality 0.5V1057 Cyg 00:45–01:15: quality 0.4V1057 Cyg 01:15–01:40: quality 0.3observe V1057 Cyg 20:10–22:00M33M33 17:50–18:20: quality 0.1M33 18:20–18:55: quality 0.3M33 18:55–21:40: quality 0.5M33 21:40–23:50: quality 0.4M33 23:50–04:40: quality 0.3M33 04:40–05:20: quality 0.2observe M33 00:40–02:05scheduleNGC 7000V1057 CygM31M33M31M4218:0020:0022:0000:0002:0004:0006:00

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
17:15–18:20 — nothing worth pointing at — 1.08
18:20–20:10 NGC 7000 1.83 0.65
20:10–22:00 V1057 Cyg 1.83 0.72
22:00–23:35 M31 1.58 0.45
23:35–00:10 M45 0.58 0.31
00:10–00:40 M31 0.5 0.4
00:40–02:05 M33 1.42 0.31
02:05–04:15 M31 2.17 0.33
04:15–04:20 — nothing worth pointing at — 0.08
04:20–05:20 M42 1.0 0.31
05:20–06:55 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 61 unknown 18:55–19:50 (good) 89.7° at 22:30 46.9° 4.25
M42 Great Orion Nebula 13 unknown 04:20–05:20 (marginal) 42.9° at 03:20 36.1° 1.0
M45 Seven Sisters 27 unknown 20:30–00:10 (marginal) 72.5° at 01:30 7.3° 0.58
NGC 7000 North America Nebula 79 unknown 18:55–23:00 (good) 87.2° at 18:45 85.4° 1.83
V1057 Cyg 79 unknown 18:55–23:00 (good) 87.3° at 18:45 85.4° 1.83
M33 Triangulum Pinwheel 52 unknown 18:55–02:05 (marginal) 79.2° at 23:20 36.4° 1.42
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-10-30"

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"}.