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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, 13 August 2030 · astronomical night 22:10 → 04:41 (6.53 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 22:00–22:15: quality 0.1M31 22:15–22:25: quality 0.3M31 22:25–22:55: quality 0.4M31 22:55–03:15: quality 0.5M31 03:15–04:45: quality 0.6M31 04:45–05:25: quality 0.3M31 05:25–06:00: quality 0.1observe M31 01:15–02:45M42M42 05:40–06:00: quality 0.1M45M45 02:05–02:20: quality 0.3M45 02:20–02:40: quality 0.4M45 02:40–02:55: quality 0.5M45 02:55–04:15: quality 0.6M45 04:15–04:45: quality 0.7M45 04:45–04:55: quality 0.3M45 04:55–05:25: quality 0.4M45 05:25–06:00: quality 0.1observe M45 04:15–05:25NGC 7000NGC 7000 20:55–21:35: quality 0.1NGC 7000 21:35–22:15: quality 0.3NGC 7000 22:15–22:50: quality 0.6NGC 7000 22:50–04:45: quality 0.5NGC 7000 04:45–05:25: quality 0.3NGC 7000 05:25–06:00: quality 0.1observe NGC 7000 22:15–23:45V1057 CygV1057 Cyg 20:55–21:35: quality 0.1V1057 Cyg 21:35–22:15: quality 0.3V1057 Cyg 22:15–22:50: quality 0.6V1057 Cyg 22:50–04:45: quality 0.5V1057 Cyg 04:45–05:25: quality 0.3V1057 Cyg 05:25–06:00: quality 0.1observe V1057 Cyg 23:45–01:15M33M33 23:30–23:35: quality 0.2M33 23:35–00:00: quality 0.3M33 00:00–00:25: quality 0.4M33 00:25–02:55: quality 0.5M33 02:55–04:45: quality 0.6M33 04:45–05:25: quality 0.3M33 05:25–06:00: quality 0.1observe M33 02:45–04:15scheduleNGC 7000V1057 CygM31M33M4522:0000:0002:0004:0006:00

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
20:20–22:15 — nothing worth pointing at — 1.92
22:15–23:45 NGC 7000 1.5 0.54
23:45–01:15 V1057 Cyg 1.5 0.5
01:15–02:45 M31 1.5 0.53
02:45–04:15 M33 1.5 0.57
04:15–05:25 M45 1.17 0.49
05:25–06:30 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 53 unknown 22:15–04:45 (marginal) 89.7° at 04:35 62.7° 1.5
M42 Great Orion Nebula 0 unknown — 42.9° at 09:25 114.6° 0.0
M45 Seven Sisters 31 unknown 03:30–04:45 (good) 72.5° at 07:40 91.8° 1.17
NGC 7000 North America Nebula 54 unknown 22:15–04:45 (marginal) 87.2° at 00:50 53.5° 1.5
V1057 Cyg 54 unknown 22:15–04:45 (marginal) 87.3° at 00:50 53.4° 1.5
M33 Triangulum Pinwheel 43 unknown 04:35–04:45 (good) 79.1° at 05:25 65.5° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-08-13"

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"}.