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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, 28 December 2042 · astronomical night 18:38 → 06:07 (11.48 h) · Moon 94% (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 18:40–18:50: quality 1.0M31 18:50–21:35: quality 0.8M31 21:35–22:55: quality 0.7M31 22:55–00:15: quality 0.6M31 00:15–00:40: quality 0.5M31 00:40–01:00: quality 0.4M31 01:00–01:20: quality 0.3observe M31 21:05–22:35M42M42 19:45–20:05: quality 0.3M42 20:05–20:35: quality 0.4M42 20:35–22:40: quality 0.5M42 22:40–01:45: quality 0.4M42 01:45–02:50: quality 0.3M42 02:50–03:20: quality 0.2observe M42 01:35–02:30M45M45 17:30–18:05: quality 0.1M45 18:05–18:20: quality 0.4M45 18:20–18:40: quality 0.5M45 18:40–18:50: quality 0.9M45 18:50–21:00: quality 0.7M45 21:00–23:35: quality 0.6M45 23:35–01:20: quality 0.5M45 01:20–02:40: quality 0.4M45 02:40–03:05: quality 0.3M45 03:05–03:20: quality 0.2observe M45 00:05–01:35observe M45 02:30–02:50NGC 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 18:40–18:50: quality 0.9NGC 7000 18:50–19:50: quality 0.8NGC 7000 19:50–20:50: quality 0.7NGC 7000 20:50–21:05: quality 0.6NGC 7000 21:05–21:25: quality 0.5NGC 7000 21:25–21:45: quality 0.4NGC 7000 21:45–21:50: quality 0.3observe NGC 7000 19:35–21:05V1057 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 18:40–18:50: quality 0.9V1057 Cyg 18:50–19:50: quality 0.8V1057 Cyg 19:50–20:50: 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 0.4V1057 Cyg 21:45–21:50: quality 0.3observe V1057 Cyg 18:05–19:35M33M33 17:30–18:05: quality 0.2M33 18:05–18:40: quality 0.5M33 18:40–18:50: quality 1.0M33 18:50–21:30: quality 0.8M33 21:30–23:00: quality 0.7M33 23:00–00:25: quality 0.6M33 00:25–00:50: quality 0.5M33 00:50–01:10: quality 0.4M33 01:10–01:30: quality 0.3observe M33 22:35–00:05scheduleV1057 CygNGC 7000M31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
18:05–19:35 V1057 Cyg 1.5 0.69
19:35–21:05 NGC 7000 1.5 0.7
21:05–22:35 M31 1.5 0.73
22:35–00:05 M33 1.5 0.63
00:05–01:35 M45 1.5 0.48
01:35–02:30 M42 0.92 0.34
02:30–02:50 M45 0.33 0.34
02:50–07:50 — nothing worth pointing at — 5.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–23:40 (good) 89.6° at 18:35 94.0° 1.5
M42 Great Orion Nebula 36 unknown 19:55–02:30 (marginal) 42.9° at 23:30 52.9° 0.92
M45 Seven Sisters 93 unknown 18:40–22:15 (good) 72.6° at 21:40 65.8° 1.83
NGC 7000 North America Nebula 58 unknown 18:40–20:55 (good) 87.2° at 14:55 112.2° 1.5
V1057 Cyg 58 unknown 18:40–20:55 (good) 87.2° at 14:55 112.2° 1.5
M33 Triangulum Pinwheel 100 unknown 18:40–23:40 (good) 79.2° at 19:30 90.8° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-12-28"

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"}.