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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, 20 October 2043 · astronomical night 20:05 → 06:06 (10.03 h) · Moon 91% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:35: quality 0.1M31 19:35–19:40: quality 0.4M31 19:40–20:10: quality 0.3M31 20:10–21:50: quality 0.6M31 21:50–23:50: quality 0.5M31 23:50–03:20: quality 0.4M31 03:20–06:10: quality 0.3M31 06:10–06:40: quality 0.1observe M31 23:15–01:05observe M31 03:05–03:55M42M42 01:15–02:05: quality 0.2M42 02:05–06:10: quality 0.3M42 06:10–06:40: quality 0.2M42 06:40–07:15: quality 0.1observe M42 03:55–05:45M45M45 21:40–21:55: quality 0.2M45 21:55–22:30: quality 0.3M45 22:30–23:20: quality 0.4M45 23:20–06:10: quality 0.3M45 06:10–06:40: quality 0.2observe M45 05:45–06:10NGC 7000NGC 7000 19:05–19:35: quality 0.2NGC 7000 19:35–19:40: quality 0.5NGC 7000 19:40–20:10: quality 0.4NGC 7000 20:10–21:10: quality 0.8NGC 7000 21:10–23:40: quality 0.7NGC 7000 23:40–01:10: quality 0.6NGC 7000 01:10–02:25: quality 0.5NGC 7000 02:25–02:50: quality 0.4NGC 7000 02:50–03:20: quality 0.3observe NGC 7000 19:35–21:25observe NGC 7000 02:20–03:05V1057 CygV1057 Cyg 19:05–19:35: quality 0.2V1057 Cyg 19:35–19:40: quality 0.5V1057 Cyg 19:40–20:10: quality 0.4V1057 Cyg 20:10–21:10: quality 0.8V1057 Cyg 21:10–23:40: quality 0.7V1057 Cyg 23:40–01:10: quality 0.6V1057 Cyg 01:10–02:25: quality 0.5V1057 Cyg 02:25–02:50: quality 0.4V1057 Cyg 02:50–03:20: quality 0.3observe V1057 Cyg 21:25–23:15M33M33 19:05–19:35: quality 0.1M33 19:35–19:40: quality 0.3M33 19:40–20:10: quality 0.2M33 20:10–22:35: quality 0.5M33 22:35–00:40: quality 0.4M33 00:40–06:10: quality 0.3M33 06:10–06:40: quality 0.1observe M33 01:05–02:20scheduleNGC 7000V1057 CygM31M33NGC 7000M31M4220:0022:0000:0002:0004:0006:00

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
18:30–19:35 — nothing worth pointing at — 1.08
19:35–21:25 NGC 7000 1.83 0.65
21:25–23:15 V1057 Cyg 1.83 0.71
23:15–01:05 M31 1.83 0.44
01:05–02:20 M33 1.25 0.31
02:20–03:05 NGC 7000 0.75 0.38
03:05–03:55 M31 0.83 0.35
03:55–05:45 M42 1.83 0.32
05:45–06:10 M45 0.42 0.32
06:10–07:40 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 58 unknown 20:10–05:55 (marginal) 89.8° at 00:10 42.3° 2.67
M42 Great Orion Nebula 13 unknown 03:55–06:10 (marginal) 42.9° at 05:00 39.3° 1.83
M45 Seven Sisters 25 unknown 22:10–02:00 (marginal) 72.5° at 03:15 1.6° 0.42
NGC 7000 North America Nebula 78 unknown 20:10–00:20 (good) 87.2° at 20:25 81.7° 2.58
V1057 Cyg 78 unknown 20:10–00:20 (good) 87.3° at 20:25 81.7° 1.83
M33 Triangulum Pinwheel 47 unknown 20:10–02:20 (marginal) 79.2° at 01:00 31.0° 1.25
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-10-20"

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"}.