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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, 15 August 2028 · astronomical night 22:05 → 04:45 (6.67 h) · Moon 26% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:50–22:05: quality 0.2M31 22:05–22:10: quality 0.3M31 22:10–22:15: quality 0.5M31 22:15–22:30: quality 0.6M31 22:30–22:45: quality 0.7M31 22:45–23:40: quality 0.8M31 23:40–01:05: quality 0.9M31 01:05–01:35: quality 1.0M31 01:35–04:50: quality 0.9M31 04:50–05:25: quality 0.4M31 05:25–06:05: quality 0.1observe M31 00:40–02:15M42M42 05:30–06:05: quality 0.1M45M45 01:55–02:10: quality 0.4M45 02:10–02:25: quality 0.5M45 02:25–02:40: quality 0.6M45 02:40–03:45: quality 0.7M45 03:45–04:50: quality 0.8M45 04:50–05:25: quality 0.4M45 05:25–06:05: quality 0.1observe M45 03:50–05:25NGC 7000NGC 7000 20:55–21:30: quality 0.1NGC 7000 21:30–22:10: quality 0.5NGC 7000 22:10–02:35: quality 1.0NGC 7000 02:35–04:45: quality 0.9NGC 7000 04:45–04:50: quality 0.8NGC 7000 04:50–05:25: quality 0.4NGC 7000 05:25–06:05: quality 0.1observe NGC 7000 21:30–23:05V1057 CygV1057 Cyg 20:55–21:30: quality 0.1V1057 Cyg 21:30–22:10: quality 0.5V1057 Cyg 22:10–02:35: quality 1.0V1057 Cyg 02:35–04:45: quality 0.9V1057 Cyg 04:45–04:50: quality 0.8V1057 Cyg 04:50–05:25: quality 0.4V1057 Cyg 05:25–06:05: quality 0.1observe V1057 Cyg 23:05–00:40M33M33 23:20–23:30: quality 0.4M33 23:30–23:40: quality 0.5M33 23:40–23:55: quality 0.6M33 23:55–00:10: quality 0.7M33 00:10–01:00: quality 0.8M33 01:00–01:35: quality 0.9M33 01:35–02:05: quality 0.8M33 02:05–04:50: quality 0.9M33 04:50–05:25: quality 0.4M33 05:25–06:05: quality 0.1observe M33 02:15–03:50scheduleNGC 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
21:30–23:05 NGC 7000 1.58 0.79
23:05–00:40 V1057 Cyg 1.58 1.0
00:40–02:15 M31 1.58 0.94
02:15–03:50 M33 1.58 0.89
03:50–05:25 M45 1.58 0.64
05:25–06:35 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 98 unknown 22:20–04:50 (good) 89.7° at 04:25 59.8° 1.58
M42 Great Orion Nebula 0 unknown — 42.9° at 09:15 31.3° 0.0
M45 Seven Sisters 46 unknown 02:35–04:50 (good) 72.5° at 07:30 23.2° 1.58
NGC 7000 North America Nebula 100 unknown 22:10–04:50 (good) 87.2° at 00:40 94.9° 1.58
V1057 Cyg 100 unknown 22:10–04:50 (good) 87.3° at 00:40 95.0° 1.58
M33 Triangulum Pinwheel 90 unknown 23:50–04:50 (good) 79.1° at 05:15 51.3° 1.58

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-08-15"

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"}.