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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, 03 December 2039 · astronomical night 18:30 → 05:51 (11.36 h) · Moon 91% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–17:35: quality 0.1M31 17:35–18:00: quality 0.2M31 18:00–18:35: quality 0.5M31 18:35–19:00: quality 1.0M31 19:00–20:20: quality 0.8M31 20:20–23:05: quality 0.7M31 23:05–00:35: quality 0.6M31 00:35–02:00: quality 0.5M31 02:00–02:25: quality 0.4M31 02:25–02:55: quality 0.3M31 02:55–03:00: quality 0.2observe M31 21:30–23:15M42M42 21:25–21:35: quality 0.2M42 21:35–22:15: quality 0.3M42 22:15–23:55: quality 0.4M42 23:55–04:10: quality 0.3M42 04:10–05:00: quality 0.2M45M45 17:45–18:00: quality 0.1M45 18:00–18:25: quality 0.3M45 18:25–18:35: quality 0.4M45 18:35–19:00: quality 0.8M45 19:00–21:40: quality 0.6M45 21:40–23:55: quality 0.5M45 23:55–02:50: quality 0.4M45 02:50–04:30: quality 0.3M45 04:30–05:00: quality 0.2observe M45 01:00–04:10NGC 7000NGC 7000 17:25–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–19:00: quality 1.0NGC 7000 19:00–19:40: quality 0.9NGC 7000 19:40–20:55: quality 0.8NGC 7000 20:55–22:20: quality 0.7NGC 7000 22:20–22:40: quality 0.6NGC 7000 22:40–23:00: quality 0.5NGC 7000 23:00–23:20: quality 0.4NGC 7000 23:20–23:25: quality 0.3observe NGC 7000 18:00–19:45V1057 CygV1057 Cyg 17:25–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–19:00: quality 1.0V1057 Cyg 19:00–19:40: quality 0.9V1057 Cyg 19:40–20:55: quality 0.8V1057 Cyg 20:55–22:20: quality 0.7V1057 Cyg 22:20–22:40: quality 0.6V1057 Cyg 22:40–23:00: quality 0.5V1057 Cyg 23:00–23:20: quality 0.4V1057 Cyg 23:20–23:25: quality 0.3observe V1057 Cyg 19:45–21:30M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.5M33 18:35–19:00: quality 1.0M33 19:00–19:45: quality 0.8M33 19:45–22:20: quality 0.7M33 22:20–00:25: quality 0.6M33 00:25–02:10: quality 0.5M33 02:10–02:35: quality 0.4M33 02:35–03:00: quality 0.3M33 03:00–03:10: quality 0.2observe M33 23:15–01:00scheduleNGC 7000V1057 CygM31M33M4518:0020:0022:0000:0002:0004:0006:00

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
18:00–19:45 NGC 7000 1.75 0.78
19:45–21:30 V1057 Cyg 1.75 0.78
21:30–23:15 M31 1.75 0.68
23:15–01:00 M33 1.75 0.57
01:00–04:10 M45 3.17 0.36
04:10–07:35 — nothing worth pointing at — 3.42

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–23:50 (good) 89.7° at 20:15 78.8° 1.75
M42 Great Orion Nebula 22 unknown 21:55–02:20 (marginal) 42.9° at 01:10 38.8° 0.0
M45 Seven Sisters 82 unknown 18:35–19:00 (good) 72.5° at 23:20 46.6° 3.17
NGC 7000 North America Nebula 97 unknown 18:35–22:30 (good) 87.2° at 16:30 106.2° 1.75
V1057 Cyg 97 unknown 18:35–22:30 (good) 87.2° at 16:30 106.3° 1.75
M33 Triangulum Pinwheel 100 unknown 18:35–23:40 (good) 79.2° at 21:05 73.1° 1.75

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-12-03"

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"}.