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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, 16 December 2035 · astronomical night 18:31 → 06:01 (11.5 h) · Moon 94% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.2M31 18:00–18:35: quality 0.5M31 18:35–18:55: quality 1.0M31 18:55–20:50: quality 0.8M31 20:50–22:55: quality 0.7M31 22:55–00:25: quality 0.6M31 00:25–01:20: quality 0.5M31 01:20–01:45: quality 0.4M31 01:45–02:05: quality 0.3observe M31 21:10–22:45M42M42 20:30–20:40: quality 0.2M42 20:40–21:20: quality 0.3M42 21:20–23:05: quality 0.4M42 23:05–03:10: quality 0.3M42 03:10–04:00: quality 0.2M42 04:00–04:05: quality 0.1observe M42 00:20–00:55M45M45 17:25–18:00: quality 0.1M45 18:00–18:35: quality 0.4M45 18:35–18:55: quality 0.9M45 18:55–21:45: quality 0.6M45 21:45–00:15: quality 0.5M45 00:15–02:50: quality 0.4M45 02:50–03:40: quality 0.3M45 03:40–04:05: quality 0.2observe M45 00:55–03:25NGC 7000NGC 7000 17:25–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–18:55: quality 1.0NGC 7000 18:55–19:15: quality 0.9NGC 7000 19:15–20:35: quality 0.8NGC 7000 20:35–21:35: quality 0.7NGC 7000 21:35–21:55: quality 0.6NGC 7000 21:55–22:15: quality 0.5NGC 7000 22:15–22:35: quality 0.4observe NGC 7000 18:00–19:35V1057 CygV1057 Cyg 17:25–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–18:55: quality 1.0V1057 Cyg 18:55–19:15: quality 0.9V1057 Cyg 19:15–20:35: quality 0.8V1057 Cyg 20:35–21:35: quality 0.7V1057 Cyg 21:35–21:55: quality 0.6V1057 Cyg 21:55–22:15: quality 0.5V1057 Cyg 22:15–22:35: quality 0.4observe V1057 Cyg 19:35–21:10M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.5M33 18:35–18:55: quality 1.0M33 18:55–20:00: quality 0.8M33 20:00–22:45: quality 0.7M33 22:45–00:10: quality 0.6M33 00:10–01:30: quality 0.5M33 01:30–01:50: quality 0.4M33 01:50–02:15: quality 0.3observe M33 22:45–00:20scheduleNGC 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
18:00–19:35 NGC 7000 1.58 0.75
19:35–21:10 V1057 Cyg 1.58 0.77
21:10–22:45 M31 1.58 0.71
22:45–00:20 M33 1.58 0.59
00:20–00:55 M42 0.58 0.31
00:55–03:25 M45 2.5 0.37
03:25–07:45 — nothing worth pointing at — 4.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–23:35 (good) 89.8° at 19:25 86.6° 1.58
M42 Great Orion Nebula 22 unknown 21:00–00:55 (marginal) 42.9° at 00:15 37.5° 0.58
M45 Seven Sisters 88 unknown 18:35–20:45 (good) 72.5° at 22:30 52.5° 2.5
NGC 7000 North America Nebula 81 unknown 18:35–21:45 (good) 87.2° at 15:40 114.0° 1.58
V1057 Cyg 81 unknown 18:35–21:45 (good) 87.3° at 15:40 114.0° 1.58
M33 Triangulum Pinwheel 100 unknown 18:35–23:25 (good) 79.1° at 20:15 80.2° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2035-12-16"

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"}.