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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 Friday, 07 October 2039 · astronomical night 20:25 → 05:52 (9.46 h) · Moon 72% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:25–19:55: quality 0.1M31 19:55–20:30: quality 0.4M31 20:30–21:40: quality 0.9M31 21:40–21:55: quality 1.0M31 21:55–22:45: quality 0.8M31 22:45–01:25: quality 0.7M31 01:25–04:25: quality 0.6M31 04:25–05:55: quality 0.5M31 05:55–06:30: quality 0.2M31 06:30–07:00: quality 0.1observe M31 23:25–01:10M42M42 02:05–02:20: quality 0.2M42 02:20–03:00: quality 0.3M42 03:00–05:55: quality 0.4M42 05:55–06:30: quality 0.2M42 06:30–07:00: quality 0.1observe M42 04:40–05:55M45M45 22:30–22:45: quality 0.3M45 22:45–23:10: quality 0.4M45 23:10–04:05: quality 0.5M45 04:05–05:55: quality 0.4M45 05:55–06:30: quality 0.2M45 06:30–07:00: quality 0.1observe M45 02:55–04:40NGC 7000NGC 7000 19:25–19:55: quality 0.2NGC 7000 19:55–20:30: quality 0.5NGC 7000 20:30–21:55: quality 1.0NGC 7000 21:55–23:10: quality 0.9NGC 7000 23:10–01:05: quality 0.8NGC 7000 01:05–02:35: quality 0.7NGC 7000 02:35–03:20: quality 0.6NGC 7000 03:20–03:40: quality 0.5NGC 7000 03:40–04:00: quality 0.4NGC 7000 04:00–04:10: quality 0.3observe NGC 7000 19:55–21:40V1057 CygV1057 Cyg 19:25–19:55: quality 0.2V1057 Cyg 19:55–20:30: quality 0.5V1057 Cyg 20:30–21:55: quality 1.0V1057 Cyg 21:55–23:10: quality 0.9V1057 Cyg 23:10–01:05: quality 0.8V1057 Cyg 01:05–02:35: quality 0.7V1057 Cyg 02:35–03:15: quality 0.6V1057 Cyg 03:15–03:40: quality 0.5V1057 Cyg 03:40–04:00: quality 0.4V1057 Cyg 04:00–04:10: quality 0.3observe V1057 Cyg 21:40–23:25M33M33 19:55–20:10: quality 0.2M33 20:10–20:30: quality 0.3M33 20:30–20:45: quality 0.7M33 20:45–21:35: quality 0.8M33 21:35–21:55: quality 0.9M33 21:55–00:25: quality 0.7M33 00:25–03:25: quality 0.6M33 03:25–05:55: quality 0.5M33 05:55–06:30: quality 0.2M33 06:30–07:00: quality 0.1observe M33 01:10–02:55scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
18:50–19:55 — nothing worth pointing at — 1.08
19:55–21:40 NGC 7000 1.75 0.83
21:40–23:25 V1057 Cyg 1.75 0.88
23:25–01:10 M31 1.75 0.69
01:10–02:55 M33 1.75 0.59
02:55–04:40 M45 1.75 0.46
04:40–05:55 M42 1.25 0.38
05:55–07:30 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 97 unknown 20:30–03:15 (good) 89.8° at 01:00 57.4° 1.75
M42 Great Orion Nebula 15 unknown 02:40–05:55 (marginal) 42.9° at 05:50 29.4° 1.25
M45 Seven Sisters 47 unknown 22:35–05:55 (marginal) 72.5° at 04:05 18.6° 1.75
NGC 7000 North America Nebula 100 unknown 20:30–03:05 (good) 87.2° at 21:15 94.3° 1.75
V1057 Cyg 100 unknown 20:30–03:05 (good) 87.3° at 21:15 94.3° 1.75
M33 Triangulum Pinwheel 87 unknown 20:30–01:45 (good) 79.2° at 01:50 47.8° 1.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-10-07"

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"}.