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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 Thursday, 15 August 2030 · astronomical night 22:06 → 04:45 (6.64 h) · Moon 92% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:50–22:05: quality 0.1M31 22:05–22:10: quality 0.2M31 22:10–22:20: quality 0.3M31 22:20–04:50: quality 0.4M31 04:50–05:25: quality 0.2M31 05:25–06:05: quality 0.1observe M31 00:30–02:00M42M42 05:45–06:05: quality 0.1M45M45 02:00–02:05: quality 0.2M45 02:05–02:30: quality 0.3M45 02:30–03:10: quality 0.4M45 03:10–04:50: quality 0.5M45 04:50–05:25: quality 0.3M45 05:25–06:05: quality 0.1observe M45 03:30–04:50NGC 7000NGC 7000 20:55–21:30: quality 0.1NGC 7000 21:30–22:10: quality 0.3NGC 7000 22:10–22:15: quality 0.7NGC 7000 22:15–00:20: quality 0.6NGC 7000 00:20–04:50: quality 0.5NGC 7000 04:50–05:25: quality 0.2NGC 7000 05:25–06:05: quality 0.1observe NGC 7000 21:30–23:00V1057 CygV1057 Cyg 20:55–21:30: quality 0.1V1057 Cyg 21:30–22:10: quality 0.3V1057 Cyg 22:10–22:15: quality 0.7V1057 Cyg 22:15–00:15: quality 0.6V1057 Cyg 00:15–04:50: quality 0.5V1057 Cyg 04:50–05:25: quality 0.2V1057 Cyg 05:25–06:05: quality 0.1observe V1057 Cyg 23:00–00:30M33M33 23:20–23:35: quality 0.2M33 23:35–00:10: quality 0.3M33 00:10–04:50: quality 0.4M33 04:50–05:25: quality 0.2M33 05:25–06:05: quality 0.1observe M33 02:00–03:30scheduleNGC 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
20:20–21:30 — nothing worth pointing at — 1.17
21:30–23:00 NGC 7000 1.5 0.5
23:00–00:30 V1057 Cyg 1.5 0.57
00:30–02:00 M31 1.5 0.43
02:00–03:30 M33 1.5 0.4
03:30–04:50 M45 1.33 0.5
04:50–06:35 — nothing worth pointing at — 1.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 34 unknown 22:10–04:50 (marginal) 89.5° at 04:25 41.9° 1.5
M42 Great Orion Nebula 0 unknown — 42.9° at 09:20 90.9° 0.0
M45 Seven Sisters 19 unknown 02:15–04:50 (marginal) 72.5° at 07:30 64.9° 1.33
NGC 7000 North America Nebula 65 unknown 22:10–23:10 (good) 87.2° at 00:45 53.9° 1.5
V1057 Cyg 65 unknown 22:10–23:10 (good) 87.3° at 00:45 53.8° 1.5
M33 Triangulum Pinwheel 24 unknown 23:50–04:50 (marginal) 79.1° at 05:20 40.2° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-08-15"

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"}.