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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, 21 November 2040 · astronomical night 18:33 → 05:41 (11.13 h) · Moon 90% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:35: quality 0.5M31 18:35–18:55: quality 1.0M31 18:55–19:20: quality 0.8M31 19:20–21:55: quality 0.7M31 21:55–00:20: quality 0.6M31 00:20–02:10: quality 0.5M31 02:10–03:00: quality 0.4M31 03:00–03:30: quality 0.3M31 03:30–03:45: quality 0.2observe M31 21:15–22:50observe M31 02:35–03:15M42M42 22:05–22:30: quality 0.2M42 22:30–04:50: quality 0.3M42 04:50–05:40: quality 0.2observe M42 00:25–01:00M45M45 18:30–18:35: quality 0.2M45 18:35–18:50: quality 0.5M45 18:50–18:55: quality 0.6M45 18:55–19:10: quality 0.4M45 19:10–22:35: quality 0.5M45 22:35–01:05: quality 0.4M45 01:05–05:05: quality 0.3M45 05:05–05:40: quality 0.2observe M45 01:00–02:35NGC 7000NGC 7000 17:30–18:05: quality 0.2NGC 7000 18:05–18:35: quality 0.5NGC 7000 18:35–18:55: quality 1.0NGC 7000 18:55–19:40: quality 0.9NGC 7000 19:40–21:10: quality 0.8NGC 7000 21:10–22:35: quality 0.7NGC 7000 22:35–23:20: quality 0.6NGC 7000 23:20–23:40: quality 0.5NGC 7000 23:40–00:00: quality 0.4NGC 7000 00:00–00:10: quality 0.3observe NGC 7000 18:05–19:40V1057 CygV1057 Cyg 17:30–18:05: quality 0.2V1057 Cyg 18:05–18:35: quality 0.5V1057 Cyg 18:35–18:55: quality 1.0V1057 Cyg 18:55–19:40: quality 0.9V1057 Cyg 19:40–21:10: quality 0.8V1057 Cyg 21:10–22:35: quality 0.7V1057 Cyg 22:35–23:15: quality 0.6V1057 Cyg 23:15–23:40: quality 0.5V1057 Cyg 23:40–00:00: quality 0.4V1057 Cyg 00:00–00:10: quality 0.3observe V1057 Cyg 19:40–21:15M33M33 17:30–18:05: quality 0.1M33 18:05–18:15: quality 0.4M33 18:15–18:35: quality 0.5M33 18:35–18:55: quality 0.9M33 18:55–21:10: quality 0.7M33 21:10–23:45: quality 0.6M33 23:45–01:40: quality 0.5M33 01:40–03:10: quality 0.4M33 03:10–03:40: quality 0.3M33 03:40–03:55: quality 0.2observe M33 22:50–00:25observe M33 03:15–03:25scheduleNGC 7000V1057 CygM31M33M4518:0020:0022:0000:0002:0004:0006:00

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
18:05–19:40 NGC 7000 1.58 0.77
19:40–21:15 V1057 Cyg 1.58 0.81
21:15–22:50 M31 1.58 0.64
22:50–00:25 M33 1.58 0.55
00:25–01:00 M42 0.58 0.3
01:00–02:35 M45 1.58 0.34
02:35–03:15 M31 0.67 0.37
03:15–03:25 M33 0.17 0.31
03:25–07:20 — nothing worth pointing at — 3.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–23:20 (good) 89.8° at 21:00 69.9° 2.25
M42 Great Orion Nebula 17 unknown 22:55–01:00 (marginal) 42.9° at 01:50 34.5° 0.58
M45 Seven Sisters 56 unknown 18:35–03:20 (marginal) 72.5° at 00:05 36.2° 1.58
NGC 7000 North America Nebula 100 unknown 18:35–23:05 (good) 87.2° at 17:15 100.9° 1.58
V1057 Cyg 100 unknown 18:35–23:05 (good) 87.3° at 17:15 100.9° 1.58
M33 Triangulum Pinwheel 95 unknown 18:35–22:20 (good) 79.2° at 21:50 63.2° 1.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-11-21"

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"}.