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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, 28 December 2034 · astronomical night 18:38 → 06:07 (11.48 h) · Moon 83% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.2M31 18:05–18:40: quality 0.5M31 18:40–21:00: quality 1.0M31 21:00–22:05: quality 0.9M31 22:05–23:25: quality 0.8M31 23:25–00:20: quality 0.7M31 00:20–00:40: quality 0.6M31 00:40–01:00: quality 0.5M31 01:00–01:15: quality 0.4M31 01:15–01:20: quality 0.3observe M31 19:40–21:15M42M42 19:45–19:50: quality 0.4M42 19:50–20:05: quality 0.5M42 20:05–20:20: quality 0.6M42 20:20–20:40: quality 0.7M42 20:40–21:00: quality 0.8M42 21:00–00:35: quality 0.6M42 00:35–02:20: quality 0.5M42 02:20–02:45: quality 0.4M42 02:45–03:15: quality 0.3M42 03:15–03:20: quality 0.2observe M42 00:55–02:40M45M45 17:30–18:05: quality 0.1M45 18:05–18:20: quality 0.4M45 18:20–18:40: quality 0.5M45 18:40–19:00: quality 0.9M45 19:00–21:00: quality 1.0M45 21:00–23:40: quality 0.8M45 23:40–01:00: quality 0.7M45 01:00–02:25: quality 0.6M45 02:25–02:45: quality 0.5M45 02:45–03:05: quality 0.4M45 03:05–03:20: quality 0.3observe M45 23:20–00:55observe M45 02:40–03:15NGC 7000NGC 7000 17:30–17:40: quality 0.2NGC 7000 17:40–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.5NGC 7000 18:40–19:50: quality 0.9NGC 7000 19:50–20:50: quality 0.8NGC 7000 20:50–21:00: quality 0.7NGC 7000 21:00–21:15: quality 0.6NGC 7000 21:15–21:35: quality 0.5NGC 7000 21:35–21:50: quality 0.4observe NGC 7000 21:15–21:45V1057 CygV1057 Cyg 17:30–17:40: quality 0.2V1057 Cyg 17:40–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.5V1057 Cyg 18:40–19:50: quality 0.9V1057 Cyg 19:50–20:50: quality 0.8V1057 Cyg 20:50–21:00: quality 0.7V1057 Cyg 21:00–21:15: quality 0.6V1057 Cyg 21:15–21:30: quality 0.5V1057 Cyg 21:30–21:50: quality 0.4observe V1057 Cyg 18:05–19:40M33M33 17:30–18:05: quality 0.2M33 18:05–18:40: quality 0.5M33 18:40–21:00: quality 1.0M33 21:00–22:20: quality 0.9M33 22:20–23:35: quality 0.8M33 23:35–00:35: quality 0.7M33 00:35–00:55: quality 0.6M33 00:55–01:10: quality 0.5M33 01:10–01:25: quality 0.4M33 01:25–01:30: quality 0.3observe M33 21:45–23:20scheduleV1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–19:40 V1057 Cyg 1.58 0.74
19:40–21:15 M31 1.58 0.99
21:15–21:45 NGC 7000 0.5 0.46
21:45–23:20 M33 1.58 0.84
23:20–00:55 M45 1.58 0.71
00:55–02:40 M42 1.75 0.48
02:40–03:15 M45 0.58 0.38
03:15–07:50 — nothing worth pointing at — 4.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–00:30 (good) 89.6° at 18:35 114.0° 1.58
M42 Great Orion Nebula 81 unknown 20:15–23:15 (good) 42.9° at 23:30 65.2° 1.75
M45 Seven Sisters 100 unknown 18:40–01:45 (good) 72.5° at 21:40 85.9° 2.17
NGC 7000 North America Nebula 64 unknown 18:40–21:05 (good) 87.2° at 14:55 123.3° 0.5
V1057 Cyg 64 unknown 18:40–21:05 (good) 87.3° at 14:55 123.4° 1.58
M33 Triangulum Pinwheel 100 unknown 18:40–00:45 (good) 79.1° at 19:30 111.6° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2034-12-28"

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"}.