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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, 17 October 2046 · astronomical night 20:09 → 06:03 (9.91 h) · Moon 92% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:40: quality 0.1M31 19:40–20:10: quality 0.3M31 20:10–21:20: quality 0.6M31 21:20–23:20: quality 0.5M31 23:20–02:20: quality 0.4M31 02:20–06:05: quality 0.3M31 06:05–06:40: quality 0.1observe M31 23:10–00:55observe M31 03:15–03:45M42M42 01:25–02:10: quality 0.2M42 02:10–05:45: quality 0.3M42 05:45–06:05: quality 0.4M42 06:05–06:40: quality 0.2M42 06:40–07:10: quality 0.1observe M42 03:45–05:30M45M45 21:50–22:10: quality 0.2M45 22:10–06:05: quality 0.3M45 06:05–06:40: quality 0.2M45 06:40–07:10: quality 0.1observe M45 05:30–06:05NGC 7000NGC 7000 19:05–19:35: quality 0.2NGC 7000 19:35–19:40: quality 0.1NGC 7000 19:40–20:10: quality 0.4NGC 7000 20:10–20:55: quality 0.8NGC 7000 20:55–23:35: quality 0.7NGC 7000 23:35–01:05: quality 0.6NGC 7000 01:05–02:30: quality 0.5NGC 7000 02:30–03:00: quality 0.4NGC 7000 03:00–03:30: quality 0.3observe NGC 7000 19:40–21:25observe NGC 7000 01:45–03:15V1057 CygV1057 Cyg 19:05–19:35: quality 0.2V1057 Cyg 19:35–19:40: quality 0.1V1057 Cyg 19:40–20:10: quality 0.4V1057 Cyg 20:10–20:55: quality 0.8V1057 Cyg 20:55–23:35: quality 0.7V1057 Cyg 23:35–01:05: quality 0.6V1057 Cyg 01:05–02:30: quality 0.5V1057 Cyg 02:30–03:00: quality 0.4V1057 Cyg 03:00–03:30: quality 0.3observe V1057 Cyg 21:25–23:10M33M33 19:15–19:40: quality 0.1M33 19:40–20:10: quality 0.2M33 20:10–21:55: quality 0.5M33 21:55–00:20: quality 0.4M33 00:20–06:05: quality 0.3M33 06:05–06:40: quality 0.1observe M33 00:55–01:45scheduleNGC 7000V1057 CygM31M33NGC 7000M4220:0022:0000:0002:0004:0006:00

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
18:35–19:40 — nothing worth pointing at — 1.08
19:40–21:25 NGC 7000 1.75 0.65
21:25–23:10 V1057 Cyg 1.75 0.7
23:10–00:55 M31 1.75 0.42
00:55–01:45 M33 0.83 0.31
01:45–03:15 NGC 7000 1.5 0.43
03:15–03:45 M31 0.5 0.33
03:45–05:30 M42 1.75 0.32
05:30–06:05 M45 0.58 0.32
06:05–07:40 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 56 unknown 20:10–06:05 (marginal) 89.8° at 00:20 39.7° 2.25
M42 Great Orion Nebula 14 unknown 03:30–06:05 (marginal) 42.9° at 05:10 41.4° 1.75
M45 Seven Sisters 23 unknown 22:25–01:45 (marginal) 72.6° at 03:25 2.6° 0.58
NGC 7000 North America Nebula 77 unknown 20:10–00:15 (good) 87.2° at 20:35 79.7° 3.25
V1057 Cyg 77 unknown 20:10–00:15 (good) 87.2° at 20:35 79.7° 1.75
M33 Triangulum Pinwheel 44 unknown 20:10–01:45 (marginal) 79.2° at 01:10 27.7° 0.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2046-10-17"

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"}.