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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, 27 December 2028 · astronomical night 18:37 → 06:07 (11.49 h) · Moon 85% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:40: quality 0.2M31 18:40–00:20: quality 0.4M31 00:20–01:00: quality 0.3M31 01:00–01:20: quality 0.2observe M31 21:10–22:40M42M42 19:45–20:15: quality 0.2M42 20:15–21:10: quality 0.3M42 21:10–00:55: quality 0.4M42 00:55–02:25: quality 0.5M42 02:25–02:55: quality 0.4M42 02:55–03:20: quality 0.3observe M42 22:40–00:10observe M42 03:05–03:10M45M45 17:30–18:05: quality 0.1M45 18:05–18:40: quality 0.2M45 18:40–19:55: quality 0.4M45 19:55–22:05: quality 0.3M45 22:05–02:50: quality 0.4M45 02:50–03:15: quality 0.3M45 03:15–03:20: quality 0.2observe M45 00:50–03:05NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.3NGC 7000 18:40–19:30: quality 0.6NGC 7000 19:30–20:55: quality 0.5NGC 7000 20:55–21:20: quality 0.4NGC 7000 21:20–21:50: quality 0.3observe NGC 7000 18:40–20:10V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.3V1057 Cyg 18:40–19:30: quality 0.6V1057 Cyg 19:30–20:55: quality 0.5V1057 Cyg 20:55–21:20: quality 0.4V1057 Cyg 21:20–21:50: quality 0.3observe V1057 Cyg 18:05–18:35observe V1057 Cyg 20:10–21:10M33M33 17:30–18:05: quality 0.1M33 18:05–18:40: quality 0.2M33 18:40–19:55: quality 0.4M33 19:55–01:10: quality 0.3M33 01:10–01:30: quality 0.2observe M33 00:10–00:50scheduleNGC 7000V1057 CygM31M42M4518:0020:0022:0000:0002:0004:0006:00

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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–18:35 V1057 Cyg 0.5 0.31
18:35–18:40 — nothing worth pointing at — 0.08
18:40–20:10 NGC 7000 1.5 0.55
20:10–21:10 V1057 Cyg 1.0 0.47
21:10–22:40 M31 1.5 0.37
22:40–00:10 M42 1.5 0.41
00:10–00:50 M33 0.67 0.34
00:50–03:05 M45 2.25 0.4
03:05–03:10 M42 0.08 0.31
03:10–07:50 — nothing worth pointing at — 4.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 27 unknown 18:40–00:40 (marginal) 89.6° at 18:40 36.4° 1.5
M42 Great Orion Nebula 34 unknown 20:30–03:10 (marginal) 42.9° at 23:30 44.8° 1.58
M45 Seven Sisters 36 unknown 18:40–03:05 (marginal) 72.5° at 21:40 8.5° 2.25
NGC 7000 North America Nebula 26 unknown 18:40–21:35 (marginal) 87.2° at 14:55 76.8° 1.5
V1057 Cyg 26 unknown 18:40–21:35 (marginal) 87.3° at 14:55 76.8° 1.5
M33 Triangulum Pinwheel 23 unknown 18:40–00:50 (marginal) 79.1° at 19:30 23.2° 0.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-12-27"

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"}.