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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, 10 August 2028 · astronomical night 22:14 → 04:38 (6.38 h) · Moon 74% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 22:10–22:15: quality 0.2M31 22:15–22:25: quality 0.5M31 22:25–22:50: quality 0.4M31 22:50–04:25: quality 0.5M31 04:25–04:40: quality 0.4M31 04:40–05:20: quality 0.2M31 05:20–06:00: quality 0.1observe M31 00:25–01:50M42M45M45 02:15–02:25: quality 0.2M45 02:25–02:50: quality 0.3M45 02:50–04:35: quality 0.4M45 04:35–04:40: quality 0.5M45 04:40–05:20: quality 0.2M45 05:20–06:00: quality 0.1observe M45 03:15–04:40NGC 7000NGC 7000 21:00–21:35: quality 0.1NGC 7000 21:35–22:15: quality 0.5NGC 7000 22:15–22:25: quality 1.0NGC 7000 22:25–23:20: quality 0.8NGC 7000 23:20–02:05: quality 0.7NGC 7000 02:05–04:40: quality 0.6NGC 7000 04:40–05:20: quality 0.3NGC 7000 05:20–06:00: quality 0.1observe NGC 7000 21:35–23:00V1057 CygV1057 Cyg 21:00–21:35: quality 0.1V1057 Cyg 21:35–22:15: quality 0.5V1057 Cyg 22:15–22:25: quality 1.0V1057 Cyg 22:25–23:20: quality 0.8V1057 Cyg 23:20–02:05: quality 0.7V1057 Cyg 02:05–04:40: quality 0.6V1057 Cyg 04:40–05:20: quality 0.3V1057 Cyg 05:20–06:00: quality 0.1observe V1057 Cyg 23:00–00:25M33M33 23:40–00:05: quality 0.3M33 00:05–00:30: quality 0.4M33 00:30–04:25: quality 0.5M33 04:25–04:40: quality 0.4M33 04:40–05:20: quality 0.2M33 05:20–06:00: quality 0.1observe M33 01:50–03:15scheduleNGC 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
20:25–21:35 — nothing worth pointing at — 1.17
21:35–23:00 NGC 7000 1.42 0.67
23:00–00:25 V1057 Cyg 1.42 0.73
00:25–01:50 M31 1.42 0.52
01:50–03:15 M33 1.42 0.47
03:15–04:40 M45 1.42 0.43
04:40–06:30 — nothing worth pointing at — 1.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 44 unknown 22:15–04:40 (marginal) 89.7° at 04:45 29.1° 1.42
M42 Great Orion Nebula 0 unknown — 42.9° at 09:35 69.3° 0.0
M45 Seven Sisters 13 unknown 02:35–04:40 (marginal) 72.5° at 07:50 39.6° 1.42
NGC 7000 North America Nebula 100 unknown 22:15–04:00 (good) 87.2° at 01:00 61.1° 1.42
V1057 Cyg 100 unknown 22:15–04:00 (good) 87.3° at 01:00 61.1° 1.42
M33 Triangulum Pinwheel 29 unknown 23:50–04:40 (marginal) 79.1° at 05:35 19.1° 1.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-08-10"

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"}.