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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 Sunday, 23 December 2029 · astronomical night 18:35 → 06:05 (11.51 h) · Moon 91% (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 18:40–19:45: quality 1.0M31 19:45–20:10: quality 0.9M31 20:10–22:25: quality 0.8M31 22:25–23:45: quality 0.7M31 23:45–00:45: quality 0.6M31 00:45–01:05: quality 0.5M31 01:05–01:25: quality 0.4M31 01:25–01:35: quality 0.3observe M31 19:40–21:15M42M42 20:00–20:20: quality 0.3M42 20:20–20:50: quality 0.4M42 20:50–23:15: quality 0.5M42 23:15–02:15: quality 0.4M42 02:15–03:10: quality 0.3M42 03:10–03:35: quality 0.2observe M42 01:15–02:50M45M45 17:30–18:05: quality 0.1M45 18:05–18:40: quality 0.4M45 18:40–19:20: quality 0.9M45 19:20–19:45: quality 1.0M45 19:45–22:10: quality 0.7M45 22:10–00:30: quality 0.6M45 00:30–02:20: quality 0.5M45 02:20–03:05: quality 0.4M45 03:05–03:30: quality 0.3M45 03:30–03:35: quality 0.2observe M45 23:40–01:15observe M45 02:50–03:15NGC 7000NGC 7000 17:30–18:00: quality 0.2NGC 7000 18:00–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.5NGC 7000 18:40–19:45: quality 0.9NGC 7000 19:45–20:40: quality 0.8NGC 7000 20:40–21:10: quality 0.7NGC 7000 21:10–21:30: quality 0.6NGC 7000 21:30–21:50: quality 0.5NGC 7000 21:50–22:05: quality 0.4observe NGC 7000 21:15–22:05V1057 CygV1057 Cyg 17:30–18:00: quality 0.2V1057 Cyg 18:00–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.5V1057 Cyg 18:40–19:45: quality 0.9V1057 Cyg 19:45–20:40: quality 0.8V1057 Cyg 20:40–21:10: quality 0.7V1057 Cyg 21:10–21:30: quality 0.6V1057 Cyg 21:30–21:50: quality 0.5V1057 Cyg 21:50–22:05: quality 0.4observe V1057 Cyg 18:05–19:40M33M33 17:30–18:05: quality 0.2M33 18:05–18:40: quality 0.5M33 18:40–19:45: quality 1.0M33 19:45–22:30: quality 0.8M33 22:30–23:45: quality 0.7M33 23:45–00:55: quality 0.6M33 00:55–01:15: quality 0.5M33 01:15–01:35: quality 0.4M33 01:35–01:45: quality 0.3observe M33 22:05–23:40scheduleV1057 CygM31NGC 7000M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
18:05–19:40 V1057 Cyg 1.58 0.76
19:40–21:15 M31 1.58 0.85
21:15–22:05 NGC 7000 0.83 0.5
22:05–23:40 M33 1.58 0.72
23:40–01:15 M45 1.58 0.55
01:15–02:50 M42 1.58 0.35
02:50–03:15 M45 0.42 0.35
03:15–07:50 — nothing worth pointing at — 4.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–00:35 (good) 89.7° at 18:55 99.4° 1.58
M42 Great Orion Nebula 38 unknown 20:10–02:50 (marginal) 42.9° at 23:45 48.7° 1.58
M45 Seven Sisters 98 unknown 18:40–23:30 (good) 72.5° at 22:00 67.5° 2.0
NGC 7000 North America Nebula 69 unknown 18:40–21:20 (good) 87.2° at 15:10 120.2° 0.83
V1057 Cyg 69 unknown 18:40–21:20 (good) 87.3° at 15:10 120.3° 1.58
M33 Triangulum Pinwheel 100 unknown 18:40–00:30 (good) 79.1° at 19:45 94.6° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-12-23"

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"}.