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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, 22 December 2029 · astronomical night 18:34 → 06:05 (11.51 h) · Moon 96% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.2M31 18:05–18:35: quality 0.5M31 18:35–18:40: quality 1.0M31 18:40–20:35: quality 0.8M31 20:35–22:35: quality 0.7M31 22:35–00:05: quality 0.6M31 00:05–00:55: quality 0.5M31 00:55–01:20: quality 0.4M31 01:20–01:40: quality 0.3observe M31 21:05–22:35M42M42 20:05–20:15: quality 0.2M42 20:15–20:50: quality 0.3M42 20:50–22:55: quality 0.4M42 22:55–02:45: quality 0.3M42 02:45–03:35: quality 0.2M42 03:35–03:40: quality 0.1observe M42 00:05–00:35M45M45 17:30–18:05: quality 0.1M45 18:05–18:35: quality 0.4M45 18:35–18:40: quality 0.9M45 18:40–21:30: quality 0.6M45 21:30–00:05: quality 0.5M45 00:05–02:30: quality 0.4M45 02:30–03:15: quality 0.3M45 03:15–03:40: quality 0.2observe M45 00:35–03:00NGC 7000NGC 7000 17:30–18:05: quality 0.2NGC 7000 18:05–18:35: quality 0.5NGC 7000 18:35–18:40: quality 1.0NGC 7000 18:40–18:50: quality 0.9NGC 7000 18:50–20:10: quality 0.8NGC 7000 20:10–21:10: quality 0.7NGC 7000 21:10–21:30: quality 0.6NGC 7000 21:30–21:50: quality 0.5NGC 7000 21:50–22:10: quality 0.4observe NGC 7000 19:35–21:05V1057 CygV1057 Cyg 17:30–18:05: quality 0.2V1057 Cyg 18:05–18:35: quality 0.5V1057 Cyg 18:35–18:40: quality 1.0V1057 Cyg 18:40–18:50: quality 0.9V1057 Cyg 18:50–20:10: quality 0.8V1057 Cyg 20:10–21:10: quality 0.7V1057 Cyg 21:10–21:30: quality 0.6V1057 Cyg 21:30–21:50: quality 0.5V1057 Cyg 21:50–22:10: quality 0.4observe V1057 Cyg 18:05–19:35M33M33 17:30–17:35: quality 0.1M33 17:35–18:05: quality 0.2M33 18:05–18:35: quality 0.5M33 18:35–18:40: quality 1.0M33 18:40–19:50: quality 0.8M33 19:50–22:25: quality 0.7M33 22:25–23:50: quality 0.6M33 23:50–01:05: quality 0.5M33 01:05–01:25: quality 0.4M33 01:25–01:50: quality 0.3observe M33 22:35–00:05scheduleV1057 CygNGC 7000M31M33M4518:0020:0022:0000:0002:0004:0006:00

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
16:50–18:05 — nothing worth pointing at — 1.25
18:05–19:35 V1057 Cyg 1.5 0.72
19:35–21:05 NGC 7000 1.5 0.74
21:05–22:35 M31 1.5 0.7
22:35–00:05 M33 1.5 0.59
00:05–00:35 M42 0.5 0.31
00:35–03:00 M45 2.42 0.37
03:00–07:50 — nothing worth pointing at — 4.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–23:15 (good) 89.7° at 19:00 88.2° 1.5
M42 Great Orion Nebula 23 unknown 20:30–00:35 (marginal) 42.9° at 23:50 39.5° 0.5
M45 Seven Sisters 89 unknown 18:35–20:35 (good) 72.5° at 22:05 54.7° 2.42
NGC 7000 North America Nebula 68 unknown 18:35–21:20 (good) 87.2° at 15:15 114.5° 1.5
V1057 Cyg 68 unknown 18:35–21:20 (good) 87.3° at 15:15 114.5° 1.5
M33 Triangulum Pinwheel 100 unknown 18:35–23:05 (good) 79.1° at 19:50 82.2° 1.5

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-12-22"

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"}.