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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 Monday, 15 July 2030 · astronomical night 22:57 → 03:57 (5.0 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 23:55–00:10: quality 0.3M31 00:10–00:35: quality 0.4M31 00:35–01:05: quality 0.5M31 01:05–03:15: quality 0.6M31 03:15–04:00: quality 0.7M31 04:00–04:40: quality 0.3M31 04:40–04:50: quality 0.4M31 04:50–05:30: quality 0.1observe M31 01:20–02:30observe M31 04:00–04:40M42M45M45 04:00–04:25: quality 0.2M45 04:25–04:50: quality 0.3M45 04:50–05:30: quality 0.1observe M45 04:40–04:50NGC 7000NGC 7000 21:30–22:10: quality 0.1NGC 7000 22:10–23:00: quality 0.3NGC 7000 23:00–04:00: quality 0.6NGC 7000 04:00–04:50: quality 0.3NGC 7000 04:50–05:30: quality 0.1observe NGC 7000 23:00–00:10observe NGC 7000 03:40–04:00V1057 CygV1057 Cyg 21:30–22:10: quality 0.1V1057 Cyg 22:10–23:00: quality 0.3V1057 Cyg 23:00–04:00: quality 0.6V1057 Cyg 04:00–04:50: quality 0.3V1057 Cyg 04:50–05:30: quality 0.1observe V1057 Cyg 00:10–01:20M33M33 01:25–01:40: quality 0.3M33 01:40–02:00: quality 0.4M33 02:00–02:20: quality 0.5M33 02:20–03:55: quality 0.6M33 03:55–04:00: quality 0.7M33 04:00–04:35: quality 0.3M33 04:35–04:50: quality 0.4M33 04:50–05:30: quality 0.1observe M33 02:30–03:40scheduleNGC 7000V1057 CygM31M33M3122:0000:0002:0004:0006:00

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
20:50–23:00 — nothing worth pointing at — 2.17
23:00–00:10 NGC 7000 1.17 0.58
00:10–01:20 V1057 Cyg 1.17 0.57
01:20–02:30 M31 1.17 0.58
02:30–03:40 M33 1.17 0.6
03:40–04:00 NGC 7000 0.33 0.57
04:00–04:40 M31 0.67 0.35
04:40–04:50 M45 0.17 0.32
04:50–06:05 — nothing worth pointing at — 1.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 46 unknown 02:20–04:00 (good) 89.7° at 06:30 81.9° 1.83
M42 Great Orion Nebula 0 unknown — 42.9° at 11:20 133.1° 0.0
M45 Seven Sisters 2 unknown 04:40–04:50 (marginal) 72.5° at 09:35 114.4° 0.17
NGC 7000 North America Nebula 51 unknown 23:00–04:00 (marginal) 87.2° at 02:45 60.0° 1.5
V1057 Cyg 51 unknown 23:00–04:00 (marginal) 87.3° at 02:45 60.0° 1.17
M33 Triangulum Pinwheel 29 unknown 03:05–04:00 (good) 79.1° at 07:20 87.1° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-07-15"

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"}.