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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, 27 November 2039 · astronomical night 18:31 → 05:46 (11.25 h) · Moon 93% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.2M31 18:35–18:50: quality 0.5M31 18:50–02:35: quality 0.4M31 02:35–03:10: quality 0.3M31 03:10–03:20: quality 0.2observe M31 21:50–23:45M42M42 21:45–22:10: quality 0.2M42 22:10–22:45: quality 0.3M42 22:45–01:05: quality 0.4M42 01:05–04:40: quality 0.5M42 04:40–04:55: quality 0.4M42 04:55–05:00: quality 0.6M42 05:00–05:15: quality 0.5M42 05:15–05:20: quality 0.4observe M42 23:45–01:40M45M45 18:10–18:35: quality 0.1M45 18:35–00:10: quality 0.3M45 00:10–02:55: quality 0.4M45 02:55–04:35: quality 0.5M45 04:35–04:55: quality 0.4M45 04:55–05:00: quality 0.6M45 05:00–05:15: quality 0.5M45 05:15–05:20: quality 0.4observe M45 03:05–05:20NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–18:45: quality 0.7NGC 7000 18:45–20:55: quality 0.6NGC 7000 20:55–22:50: quality 0.5NGC 7000 22:50–23:20: quality 0.4NGC 7000 23:20–23:50: quality 0.3observe NGC 7000 18:00–19:55V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–18:45: quality 0.7V1057 Cyg 18:45–20:55: quality 0.6V1057 Cyg 20:55–22:50: quality 0.5V1057 Cyg 22:50–23:20: quality 0.4V1057 Cyg 23:20–23:50: quality 0.3observe V1057 Cyg 19:55–21:50M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–20:10: quality 0.4M33 20:10–00:55: quality 0.3M33 00:55–02:45: quality 0.4M33 02:45–03:20: quality 0.3M33 03:20–03:30: quality 0.2observe M33 01:40–03:05scheduleNGC 7000V1057 CygM31M42M33M4518:0020:0022:0000:0002:0004:0006:00

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
18:00–19:55 NGC 7000 1.92 0.54
19:55–21:50 V1057 Cyg 1.92 0.55
21:50–23:45 M31 1.92 0.36
23:45–01:40 M42 1.92 0.43
01:40–03:05 M33 1.42 0.36
03:05–05:20 M45 2.25 0.46
05:20–07:25 — nothing worth pointing at — 2.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 40 unknown 18:35–02:55 (marginal) 89.8° at 20:40 37.2° 1.92
M42 Great Orion Nebula 46 unknown 22:30–05:20 (marginal) 42.9° at 01:30 52.2° 1.92
M45 Seven Sisters 57 unknown 18:55–05:20 (marginal) 72.5° at 23:45 25.9° 2.25
NGC 7000 North America Nebula 49 unknown 18:35–20:05 (good) 87.2° at 16:55 75.2° 1.92
V1057 Cyg 49 unknown 18:35–20:00 (good) 87.3° at 16:55 75.1° 1.92
M33 Triangulum Pinwheel 32 unknown 18:35–03:05 (marginal) 79.2° at 21:30 22.7° 1.42
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-11-27"

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"}.