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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 Wednesday, 19 December 2040 · astronomical night 18:33 → 06:03 (11.51 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–17:35: quality 0.2M31 17:35–18:00: quality 0.1M31 18:00–18:35: quality 0.4M31 18:35–20:45: quality 0.7M31 20:45–22:45: quality 0.6M31 22:45–00:35: quality 0.5M31 00:35–01:15: quality 0.4M31 01:15–01:45: quality 0.3M31 01:45–01:50: quality 0.2observe M31 20:40–22:00observe M31 00:40–01:30M42M42 20:15–20:40: quality 0.2M42 20:40–01:20: quality 0.3M42 01:20–03:45: quality 0.2M42 03:45–03:50: quality 0.1M45M45 17:25–18:00: quality 0.1M45 18:00–18:35: quality 0.3M45 18:35–21:20: quality 0.5M45 21:20–23:55: quality 0.4M45 23:55–03:10: quality 0.3M45 03:10–03:50: quality 0.2observe M45 23:20–00:40NGC 7000NGC 7000 17:25–17:35: quality 0.2NGC 7000 17:35–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.4NGC 7000 18:35–19:35: quality 0.8NGC 7000 19:35–20:55: quality 0.7NGC 7000 20:55–21:30: quality 0.6NGC 7000 21:30–21:50: quality 0.5NGC 7000 21:50–22:10: quality 0.4NGC 7000 22:10–22:20: quality 0.3observe NGC 7000 18:00–19:20V1057 CygV1057 Cyg 17:25–17:35: quality 0.2V1057 Cyg 17:35–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.4V1057 Cyg 18:35–19:35: quality 0.8V1057 Cyg 19:35–20:55: quality 0.7V1057 Cyg 20:55–21:30: quality 0.6V1057 Cyg 21:30–21:50: quality 0.5V1057 Cyg 21:50–22:10: quality 0.4V1057 Cyg 22:10–22:20: quality 0.3observe V1057 Cyg 19:20–20:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.4M33 18:35–20:05: quality 0.7M33 20:05–22:35: quality 0.6M33 22:35–00:10: quality 0.5M33 00:10–01:20: quality 0.4M33 01:20–01:50: quality 0.3M33 01:50–02:05: quality 0.2observe M33 22:00–23:20observe M33 01:30–01:35scheduleNGC 7000V1057 CygM31M33M45M3118:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:20 NGC 7000 1.33 0.63
19:20–20:40 V1057 Cyg 1.33 0.72
20:40–22:00 M31 1.33 0.63
22:00–23:20 M33 1.33 0.54
23:20–00:40 M45 1.33 0.35
00:40–01:30 M31 0.83 0.38
01:30–01:35 M33 0.08 0.31
01:35–07:45 — nothing worth pointing at — 6.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 73 unknown 18:35–22:05 (good) 89.8° at 19:10 76.6° 2.17
M42 Great Orion Nebula 17 unknown 21:05–22:50 (marginal) 42.9° at 00:00 38.6° 0.0
M45 Seven Sisters 49 unknown 18:35–01:30 (marginal) 72.5° at 22:15 44.5° 1.33
NGC 7000 North America Nebula 57 unknown 18:35–21:20 (good) 87.2° at 15:25 104.4° 1.33
V1057 Cyg 57 unknown 18:35–21:20 (good) 87.3° at 15:25 104.4° 1.33
M33 Triangulum Pinwheel 71 unknown 18:35–21:20 (good) 79.2° at 20:00 70.9° 1.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-12-19"

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"}.