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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 Tuesday, 21 November 2045 · astronomical night 18:33 → 05:41 (11.13 h) · Moon 93% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:35: quality 0.2M31 18:35–19:30: quality 0.4M31 19:30–01:15: quality 0.3M31 01:15–02:50: quality 0.4M31 02:50–03:30: quality 0.3M31 03:30–03:45: quality 0.2observe M31 22:20–00:15M42M42 22:10–22:25: quality 0.2M42 22:25–22:55: quality 0.3M42 22:55–00:10: quality 0.4M42 00:10–02:45: quality 0.5M42 02:45–04:45: quality 0.6M42 04:45–05:05: quality 0.5M42 05:05–05:20: quality 0.6M42 05:20–05:35: quality 0.5M42 05:35–05:45: quality 0.4observe M42 00:15–02:10M45M45 18:30–18:35: quality 0.1M45 18:35–19:10: quality 0.2M45 19:10–00:10: quality 0.3M45 00:10–02:20: quality 0.4M45 02:20–05:00: quality 0.5M45 05:00–05:05: quality 0.4M45 05:05–05:10: quality 0.7M45 05:10–05:25: quality 0.6M45 05:25–05:35: quality 0.5M45 05:35–05:45: quality 0.4observe M45 03:30–05:45NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:35: quality 0.3NGC 7000 18:35–19:40: quality 0.6NGC 7000 19:40–22:00: quality 0.5NGC 7000 22:00–23:30: quality 0.4NGC 7000 23:30–00:00: quality 0.3NGC 7000 00:00–00:15: quality 0.2observe NGC 7000 18:05–18:10observe NGC 7000 18:35–20:25V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:35: quality 0.3V1057 Cyg 18:35–19:40: quality 0.6V1057 Cyg 19:40–22:00: quality 0.5V1057 Cyg 22:00–23:30: quality 0.4V1057 Cyg 23:30–00:00: quality 0.3V1057 Cyg 00:00–00:10: quality 0.2observe V1057 Cyg 20:25–22:20M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.2M33 18:35–19:25: quality 0.4M33 19:25–00:35: quality 0.3M33 00:35–03:15: quality 0.4M33 03:15–03:45: quality 0.3M33 03:45–03:55: quality 0.2observe M33 02:10–03:30scheduleNGC 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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–18:10 NGC 7000 0.08 0.3
18:10–18:35 — nothing worth pointing at — 0.42
18:35–20:25 NGC 7000 1.83 0.55
20:25–22:20 V1057 Cyg 1.92 0.48
22:20–00:15 M31 1.92 0.32
00:15–02:10 M42 1.92 0.49
02:10–03:30 M33 1.33 0.37
03:30–05:45 M45 2.25 0.5
05:45–07:20 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 31 unknown 22:00–03:10 (marginal) 89.7° at 21:00 28.6° 1.92
M42 Great Orion Nebula 58 unknown 05:05–05:10 (good) 42.9° at 01:55 61.9° 1.92
M45 Seven Sisters 66 unknown 05:05–05:15 (good) 72.6° at 00:05 31.0° 2.25
NGC 7000 North America Nebula 41 unknown 18:35–23:45 (marginal) 87.2° at 17:15 65.2° 1.92
V1057 Cyg 41 unknown 18:35–23:45 (marginal) 87.2° at 17:15 65.2° 1.92
M33 Triangulum Pinwheel 32 unknown 22:00–03:30 (marginal) 79.2° at 21:55 15.3° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-11-21"

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"}.