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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 Friday, 22 December 2034 · astronomical night 18:34 → 06:05 (11.51 h) · Moon 91% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:25: quality 0.3M31 18:25–18:35: quality 0.2M31 18:35–19:40: quality 0.5M31 19:40–00:45: quality 0.4M31 00:45–01:25: quality 0.3M31 01:25–01:40: quality 0.2observe M31 21:15–22:50M42M42 20:05–20:10: quality 0.1M42 20:10–20:55: quality 0.2M42 20:55–00:35: quality 0.3M42 00:35–03:00: quality 0.4M42 03:00–03:35: quality 0.3M42 03:35–03:40: quality 0.2observe M42 02:00–03:20M45M45 17:30–18:05: quality 0.1M45 18:05–18:35: quality 0.2M45 18:35–19:05: quality 0.4M45 19:05–00:00: quality 0.3M45 00:00–03:00: quality 0.4M45 03:00–03:35: quality 0.3M45 03:35–03:40: quality 0.2observe M45 00:25–02:00NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:20: quality 0.4NGC 7000 18:20–18:35: quality 0.3NGC 7000 18:35–19:00: quality 0.7NGC 7000 19:00–20:40: quality 0.6NGC 7000 20:40–21:25: quality 0.5NGC 7000 21:25–21:50: quality 0.4NGC 7000 21:50–22:10: quality 0.3observe NGC 7000 19:40–21:15V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:20: quality 0.4V1057 Cyg 18:20–18:35: quality 0.3V1057 Cyg 18:35–19:00: quality 0.7V1057 Cyg 19:00–20:40: quality 0.6V1057 Cyg 20:40–21:25: quality 0.5V1057 Cyg 21:25–21:50: quality 0.4V1057 Cyg 21:50–22:10: quality 0.3observe V1057 Cyg 18:05–19:40M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.2M33 18:35–20:30: quality 0.4M33 20:30–01:25: quality 0.3M33 01:25–01:55: quality 0.2observe M33 22:50–00:25scheduleV1057 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
16:50–18:05 — nothing worth pointing at — 1.25
18:05–19:40 V1057 Cyg 1.58 0.55
19:40–21:15 NGC 7000 1.58 0.56
21:15–22:50 M31 1.58 0.41
22:50–00:25 M33 1.58 0.32
00:25–02:00 M45 1.58 0.37
02:00–03:20 M42 1.33 0.37
03:20–07:50 — nothing worth pointing at — 4.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 37 unknown 18:35–01:05 (marginal) 89.8° at 19:00 46.7° 1.58
M42 Great Orion Nebula 24 unknown 22:40–03:20 (marginal) 42.9° at 23:50 34.7° 1.33
M45 Seven Sisters 32 unknown 18:35–03:20 (marginal) 72.5° at 22:05 9.4° 1.58
NGC 7000 North America Nebula 37 unknown 18:35–19:45 (good) 87.2° at 15:15 87.1° 1.58
V1057 Cyg 37 unknown 18:35–19:45 (good) 87.3° at 15:15 87.1° 1.58
M33 Triangulum Pinwheel 27 unknown 18:35–01:05 (marginal) 79.1° at 19:50 33.2° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2034-12-22"

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"}.