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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, 23 December 2037 · astronomical night 18:35 → 06:05 (11.5 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:00: quality 0.2M31 18:00–18:05: quality 0.1M31 18:05–18:40: quality 0.4M31 18:40–19:15: quality 0.8M31 19:15–21:50: quality 0.7M31 21:50–23:20: quality 0.6M31 23:20–00:40: quality 0.5M31 00:40–01:05: quality 0.4M31 01:05–01:35: quality 0.3M31 01:35–01:40: quality 0.2observe M31 21:05–22:35M42M42 20:00–20:20: quality 0.2M42 20:20–21:05: quality 0.3M42 21:05–21:25: quality 0.4M42 21:25–01:35: quality 0.3M42 01:35–03:25: quality 0.2M42 03:25–03:35: quality 0.1M45M45 17:30–18:05: quality 0.1M45 18:05–18:40: quality 0.3M45 18:40–20:20: quality 0.6M45 20:20–22:15: quality 0.5M45 22:15–01:00: quality 0.4M45 01:00–03:05: quality 0.3M45 03:05–03:35: quality 0.2observe M45 00:05–02:45NGC 7000NGC 7000 17:30–18:00: quality 0.2NGC 7000 18:00–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.4NGC 7000 18:40–19:45: quality 0.8NGC 7000 19:45–21:00: quality 0.7NGC 7000 21:00–21:20: quality 0.6NGC 7000 21:20–21:40: quality 0.5NGC 7000 21:40–22:00: quality 0.4NGC 7000 22:00–22:05: quality 0.3observe NGC 7000 19:35–21:05V1057 CygV1057 Cyg 17:30–18:00: quality 0.2V1057 Cyg 18:00–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.4V1057 Cyg 18:40–19:45: quality 0.8V1057 Cyg 19:45–21:00: quality 0.7V1057 Cyg 21:00–21:20: quality 0.6V1057 Cyg 21:20–21:40: quality 0.5V1057 Cyg 21:40–22:00: quality 0.4V1057 Cyg 22:00–22:05: quality 0.3observe V1057 Cyg 18:05–19:35M33M33 17:30–18:00: quality 0.2M33 18:00–18:05: quality 0.1M33 18:05–18:40: quality 0.4M33 18:40–21:10: quality 0.7M33 21:10–23:05: quality 0.6M33 23:05–00:50: quality 0.5M33 00:50–01:15: quality 0.4M33 01:15–01:40: quality 0.3M33 01:40–01:50: quality 0.2observe M33 22:35–00:05scheduleV1057 CygNGC 7000M31M33M4518:0020:0022:0000:0002:0004:0006:00

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
16:50–18:05 — nothing worth pointing at — 1.25
18:05–19:35 V1057 Cyg 1.5 0.65
19:35–21:05 NGC 7000 1.5 0.71
21:05–22:35 M31 1.5 0.65
22:35–00:05 M33 1.5 0.53
00:05–02:45 M45 2.67 0.34
02:45–07:50 — nothing worth pointing at — 5.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 77 unknown 18:40–22:30 (good) 89.8° at 18:55 82.9° 1.5
M42 Great Orion Nebula 19 unknown 20:40–23:15 (marginal) 42.9° at 23:45 38.1° 0.0
M45 Seven Sisters 58 unknown 18:40–02:45 (marginal) 72.5° at 22:00 49.6° 2.67
NGC 7000 North America Nebula 54 unknown 18:40–21:10 (good) 87.2° at 15:10 110.2° 1.5
V1057 Cyg 54 unknown 18:40–21:10 (good) 87.3° at 15:10 110.2° 1.5
M33 Triangulum Pinwheel 75 unknown 18:40–22:20 (good) 79.2° at 19:45 76.9° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-12-23"

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"}.