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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, 18 October 2045 · astronomical night 20:07 → 06:05 (9.97 h) · Moon 61% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:40: quality 0.1M31 19:40–20:10: quality 0.4M31 20:10–20:35: quality 0.7M31 20:35–00:00: quality 0.8M31 00:00–01:00: quality 0.9M31 01:00–03:40: quality 1.0M31 03:40–05:05: quality 0.9M31 05:05–06:00: quality 0.8M31 06:00–06:10: quality 0.7M31 06:10–06:40: quality 0.3M31 06:40–06:55: quality 0.1observe M31 21:35–23:30M42M42 01:20–01:30: quality 0.4M42 01:30–01:45: quality 0.5M42 01:45–02:00: quality 0.6M42 02:00–02:15: quality 0.7M42 02:15–03:25: quality 0.8M42 03:25–06:10: quality 0.9M42 06:10–06:40: quality 0.4M42 06:40–07:10: quality 0.1observe M42 03:20–05:15M45M45 21:45–22:00: quality 0.4M45 22:00–22:15: quality 0.5M45 22:15–22:30: quality 0.6M45 22:30–22:55: quality 0.7M45 22:55–00:15: quality 0.8M45 00:15–01:00: quality 0.9M45 01:00–06:00: quality 1.0M45 06:00–06:10: quality 0.9M45 06:10–06:40: quality 0.5M45 06:40–07:10: quality 0.1observe M45 01:25–03:20observe M45 05:15–06:40NGC 7000NGC 7000 19:05–19:40: quality 0.1NGC 7000 19:40–20:10: quality 0.4NGC 7000 20:10–00:30: quality 0.8NGC 7000 00:30–01:00: quality 0.7NGC 7000 01:00–01:30: quality 0.9NGC 7000 01:30–02:25: quality 0.8NGC 7000 02:25–02:45: quality 0.7NGC 7000 02:45–03:00: quality 0.6NGC 7000 03:00–03:15: quality 0.5NGC 7000 03:15–03:25: quality 0.4observe NGC 7000 19:40–21:35V1057 CygV1057 Cyg 19:05–19:40: quality 0.1V1057 Cyg 19:40–20:10: quality 0.4V1057 Cyg 20:10–00:30: quality 0.8V1057 Cyg 00:30–01:00: quality 0.7V1057 Cyg 01:00–01:30: quality 0.9V1057 Cyg 01:30–02:25: quality 0.8V1057 Cyg 02:25–02:45: quality 0.7V1057 Cyg 02:45–03:00: quality 0.6V1057 Cyg 03:00–03:15: quality 0.5V1057 Cyg 03:15–03:25: quality 0.4M33M33 19:10–19:40: quality 0.1M33 19:40–20:10: quality 0.3M33 20:10–21:35: quality 0.7M33 21:35–23:30: quality 0.8M33 23:30–01:00: quality 0.9M33 01:00–04:10: quality 1.0M33 04:10–05:30: quality 0.9M33 05:30–06:10: quality 0.8M33 06:10–06:25: quality 0.4M33 06:25–06:40: quality 0.3M33 06:40–07:10: quality 0.1observe M33 23:30–01:25scheduleNGC 7000M31M33M45M42M4520:0022:0000:0002:0004:0006:00

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
18:30–19:40 — nothing worth pointing at — 1.17
19:40–21:35 NGC 7000 1.92 0.66
21:35–23:30 M31 1.92 0.83
23:30–01:25 M33 1.92 0.89
01:25–03:20 M45 1.92 1.0
03:20–05:15 M42 1.92 0.87
05:15–06:40 M45 1.42 0.79
06:40–07:40 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:10–06:10 (good) 89.8° at 00:15 81.9° 1.92
M42 Great Orion Nebula 89 unknown 01:55–06:10 (good) 42.9° at 05:05 127.5° 1.92
M45 Seven Sisters 100 unknown 22:20–06:10 (good) 72.6° at 03:20 111.5° 3.33
NGC 7000 North America Nebula 88 unknown 20:10–02:50 (good) 87.2° at 20:30 63.7° 1.92
V1057 Cyg 88 unknown 20:10–02:50 (good) 87.2° at 20:30 63.6° 0.0
M33 Triangulum Pinwheel 100 unknown 20:10–06:10 (good) 79.2° at 01:05 85.6° 1.92

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-10-18"

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"}.