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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 Monday, 29 December 2042 · astronomical night 18:38 → 06:07 (11.48 h) · Moon 88% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:35–18:10: quality 0.2M31 18:10–18:40: quality 0.5M31 18:40–20:05: quality 1.0M31 20:05–21:25: quality 0.9M31 21:25–22:40: quality 0.8M31 22:40–00:05: quality 0.7M31 00:05–00:30: quality 0.6M31 00:30–00:50: quality 0.5M31 00:50–01:10: quality 0.4M31 01:10–01:15: quality 0.3observe M31 19:40–21:10M42M42 19:40–19:45: quality 0.4M42 19:45–20:00: quality 0.5M42 20:00–20:05: quality 0.6M42 20:05–20:10: quality 0.4M42 20:10–20:35: quality 0.5M42 20:35–23:05: quality 0.6M42 23:05–01:40: quality 0.5M42 01:40–02:35: quality 0.4M42 02:35–03:05: quality 0.3M42 03:05–03:15: quality 0.2observe M42 00:40–02:30M45M45 17:35–18:10: quality 0.1M45 18:10–18:20: quality 0.4M45 18:20–18:40: quality 0.5M45 18:40–19:00: quality 0.9M45 19:00–20:05: quality 1.0M45 20:05–21:35: quality 0.8M45 21:35–00:05: quality 0.7M45 00:05–01:30: quality 0.6M45 01:30–02:30: quality 0.5M45 02:30–02:55: quality 0.4M45 02:55–03:15: quality 0.3observe M45 23:10–00:40observe M45 02:30–03:05NGC 7000NGC 7000 17:35–18:10: quality 0.1NGC 7000 18:10–18:40: quality 0.5NGC 7000 18:40–19:50: quality 0.9NGC 7000 19:50–20:15: quality 0.8NGC 7000 20:15–20:50: quality 0.7NGC 7000 20:50–21:10: quality 0.6NGC 7000 21:10–21:25: quality 0.5NGC 7000 21:25–21:45: quality 0.4observe NGC 7000 21:10–21:40V1057 CygV1057 Cyg 17:35–18:10: quality 0.1V1057 Cyg 18:10–18:40: quality 0.5V1057 Cyg 18:40–19:50: quality 0.9V1057 Cyg 19:50–20:15: quality 0.8V1057 Cyg 20:15–20:50: quality 0.7V1057 Cyg 20:50–21:05: quality 0.6V1057 Cyg 21:05–21:25: quality 0.5V1057 Cyg 21:25–21:45: quality 0.4observe V1057 Cyg 18:10–19:40M33M33 17:35–18:10: quality 0.2M33 18:10–18:40: quality 0.5M33 18:40–20:05: quality 1.0M33 20:05–21:25: quality 0.9M33 21:25–22:55: quality 0.8M33 22:55–00:15: quality 0.7M33 00:15–00:45: quality 0.6M33 00:45–01:00: quality 0.5M33 01:00–01:20: quality 0.4M33 01:20–01:25: quality 0.3observe M33 21:40–23:10scheduleV1057 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
16:55–18:10 — nothing worth pointing at — 1.25
18:10–19:40 V1057 Cyg 1.5 0.75
19:40–21:10 M31 1.5 0.91
21:10–21:40 NGC 7000 0.5 0.46
21:40–23:10 M33 1.5 0.79
23:10–00:40 M45 1.5 0.66
00:40–02:30 M42 1.83 0.45
02:30–03:05 M45 0.58 0.37
03:05–07:50 — nothing worth pointing at — 4.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–00:20 (good) 89.6° at 18:35 105.3° 1.5
M42 Great Orion Nebula 54 unknown 19:40–02:50 (marginal) 42.9° at 23:25 63.1° 1.83
M45 Seven Sisters 100 unknown 18:40–00:45 (good) 72.5° at 21:35 79.2° 2.08
NGC 7000 North America Nebula 59 unknown 18:40–21:00 (good) 87.2° at 14:50 116.3° 0.5
V1057 Cyg 59 unknown 18:40–21:00 (good) 87.3° at 14:50 116.3° 1.5
M33 Triangulum Pinwheel 100 unknown 18:40–00:35 (good) 79.2° at 19:25 103.6° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-12-29"

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"}.