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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 Sunday, 11 September 2033 · astronomical night 21:12 → 05:22 (8.18 h) · Moon 88% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:10–20:40: quality 0.1M31 20:40–20:55: quality 0.3M31 20:55–21:15: quality 0.4M31 21:15–00:50: quality 0.5M31 00:50–05:25: quality 0.4M31 05:25–06:00: quality 0.2M31 06:00–06:35: quality 0.1observe M31 23:40–01:10M42M42 03:45–04:00: quality 0.2M42 04:00–04:30: quality 0.3M42 04:30–05:25: quality 0.4M42 05:25–06:00: quality 0.2M42 06:00–06:35: quality 0.1observe M42 04:40–05:25M45M45 00:10–00:35: quality 0.2M45 00:35–03:40: quality 0.3M45 03:40–05:25: quality 0.4M45 05:25–06:00: quality 0.2M45 06:00–06:35: quality 0.1observe M45 02:40–04:10NGC 7000NGC 7000 20:10–20:15: quality 0.1NGC 7000 20:15–20:40: quality 0.2NGC 7000 20:40–21:15: quality 0.5NGC 7000 21:15–21:50: quality 0.8NGC 7000 21:50–00:20: quality 0.7NGC 7000 00:20–02:45: quality 0.6NGC 7000 02:45–04:50: quality 0.5NGC 7000 04:50–05:20: quality 0.4NGC 7000 05:20–05:25: quality 0.3NGC 7000 05:25–05:35: quality 0.2NGC 7000 05:35–05:50: quality 0.1observe NGC 7000 20:40–22:10observe NGC 7000 04:10–04:40V1057 CygV1057 Cyg 20:10–20:15: quality 0.1V1057 Cyg 20:15–20:40: quality 0.2V1057 Cyg 20:40–21:15: quality 0.5V1057 Cyg 21:15–21:50: quality 0.8V1057 Cyg 21:50–00:20: quality 0.7V1057 Cyg 00:20–02:45: quality 0.6V1057 Cyg 02:45–04:50: quality 0.5V1057 Cyg 04:50–05:20: quality 0.4V1057 Cyg 05:20–05:25: quality 0.3V1057 Cyg 05:25–05:35: quality 0.2V1057 Cyg 05:35–05:50: quality 0.1observe V1057 Cyg 22:10–23:40M33M33 21:35–22:05: quality 0.3M33 22:05–03:20: quality 0.4M33 03:20–04:35: quality 0.3M33 04:35–05:25: quality 0.4M33 05:25–06:00: quality 0.2M33 06:00–06:35: quality 0.1observe M33 01:10–02:40scheduleNGC 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
19:35–20:40 — nothing worth pointing at — 1.08
20:40–22:10 NGC 7000 1.5 0.66
22:10–23:40 V1057 Cyg 1.5 0.7
23:40–01:10 M31 1.5 0.47
01:10–02:40 M33 1.5 0.38
02:40–04:10 M45 1.5 0.35
04:10–04:40 NGC 7000 0.5 0.48
04:40–05:25 M42 0.75 0.41
05:25–07:00 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 53 unknown 20:40–05:25 (marginal) 89.7° at 02:40 34.9° 1.5
M42 Great Orion Nebula 8 unknown 04:15–05:25 (marginal) 42.9° at 07:30 57.9° 0.75
M45 Seven Sisters 17 unknown 00:50–05:25 (marginal) 72.5° at 05:45 31.0° 1.5
NGC 7000 North America Nebula 77 unknown 21:15–01:55 (good) 87.2° at 22:55 71.1° 2.0
V1057 Cyg 77 unknown 21:15–01:55 (good) 87.3° at 22:55 71.0° 1.5
M33 Triangulum Pinwheel 35 unknown 21:50–05:25 (marginal) 79.1° at 03:30 21.2° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2033-09-11"

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"}.