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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 Saturday, 12 October 2030 · astronomical night 20:16 → 05:58 (9.69 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:15–19:45: quality 0.1M31 19:45–20:20: quality 0.2M31 20:20–20:55: quality 0.5M31 20:55–23:10: quality 0.4M31 23:10–06:00: quality 0.3M31 06:00–06:30: quality 0.2M31 06:30–06:35: quality 0.1observe M31 23:15–00:20M42M42 01:45–02:15: quality 0.2M42 02:15–03:15: quality 0.3M42 03:15–05:55: quality 0.4M42 05:55–06:00: quality 0.5M42 06:00–06:35: quality 0.2M42 06:35–07:05: quality 0.1observe M42 02:35–04:25M45M45 22:10–22:50: quality 0.2M45 22:50–05:30: quality 0.3M45 05:30–06:00: quality 0.4M45 06:00–06:35: quality 0.2M45 06:35–07:05: quality 0.1observe M45 04:25–06:00NGC 7000NGC 7000 19:15–19:45: quality 0.1NGC 7000 19:45–20:15: quality 0.4NGC 7000 20:15–20:20: quality 0.3NGC 7000 20:20–21:20: quality 0.7NGC 7000 21:20–23:55: quality 0.6NGC 7000 23:55–01:50: quality 0.5NGC 7000 01:50–03:05: quality 0.4NGC 7000 03:05–03:40: quality 0.3NGC 7000 03:40–03:50: quality 0.2observe NGC 7000 19:45–21:30V1057 CygV1057 Cyg 19:15–19:45: quality 0.1V1057 Cyg 19:45–20:15: quality 0.4V1057 Cyg 20:15–20:20: quality 0.3V1057 Cyg 20:20–21:20: quality 0.7V1057 Cyg 21:20–23:55: quality 0.6V1057 Cyg 23:55–01:50: quality 0.5V1057 Cyg 01:50–03:05: quality 0.4V1057 Cyg 03:05–03:40: quality 0.3V1057 Cyg 03:40–03:50: quality 0.2observe V1057 Cyg 21:30–23:15observe V1057 Cyg 00:20–02:35M33M33 19:45–19:55: quality 0.1M33 19:55–20:20: quality 0.2M33 20:20–22:40: quality 0.4M33 22:40–06:00: quality 0.3M33 06:00–06:35: quality 0.2scheduleNGC 7000V1057 CygM31V1057 CygM42M4520:0022:0000:0002:0004:0006:00

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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–21:30 NGC 7000 1.75 0.56
21:30–23:15 V1057 Cyg 1.75 0.61
23:15–00:20 M31 1.08 0.32
00:20–02:35 V1057 Cyg 2.25 0.47
02:35–04:25 M42 1.83 0.36
04:25–06:00 M45 1.58 0.34
06:00–07:35 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 40 unknown 20:20–00:20 (marginal) 89.7° at 00:40 31.7° 1.08
M42 Great Orion Nebula 19 unknown 02:35–06:00 (marginal) 42.9° at 05:30 54.6° 1.83
M45 Seven Sisters 21 unknown 04:25–06:00 (marginal) 72.5° at 03:45 23.3° 1.58
NGC 7000 North America Nebula 69 unknown 20:20–22:30 (good) 87.2° at 20:55 70.6° 1.75
V1057 Cyg 69 unknown 20:20–22:30 (good) 87.3° at 20:55 70.6° 4.0
M33 Triangulum Pinwheel 33 unknown 20:20–00:00 (marginal) 79.1° at 01:30 16.9° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-10-12"

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"}.