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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, 17 June 2030 · astronomical night 23:09 → 03:35 (4.43 h) · Moon 93% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 01:45–01:55: quality 0.3M31 01:55–02:15: quality 0.4M31 02:15–02:40: quality 0.5M31 02:40–03:40: quality 0.6M31 03:40–04:30: quality 0.3M31 04:30–05:15: quality 0.1observe M31 01:45–03:15observe M31 03:40–04:10M42M45NGC 7000NGC 7000 21:45–22:20: quality 0.1NGC 7000 22:20–23:10: quality 0.3NGC 7000 23:10–03:40: quality 0.6NGC 7000 03:40–04:30: quality 0.3NGC 7000 04:30–05:15: quality 0.1observe NGC 7000 22:20–22:35observe NGC 7000 23:10–00:20V1057 CygV1057 Cyg 21:45–22:20: quality 0.1V1057 Cyg 22:20–23:10: quality 0.3V1057 Cyg 23:10–03:40: quality 0.6V1057 Cyg 03:40–04:30: quality 0.3V1057 Cyg 04:30–05:15: quality 0.1observe V1057 Cyg 00:20–01:45M33M33 03:15–03:25: quality 0.3M33 03:25–03:40: quality 0.4M33 03:40–03:50: quality 0.2M33 03:50–04:30: quality 0.3M33 04:30–05:15: quality 0.1observe M33 03:15–03:40observe M33 04:10–04:30scheduleNGC 7000V1057 CygM31M3122:0000:0002:0004:00

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
20:55–22:20 — nothing worth pointing at — 1.42
22:20–22:35 NGC 7000 0.25 0.32
22:35–23:10 — nothing worth pointing at — 0.58
23:10–00:20 NGC 7000 1.17 0.59
00:20–01:45 V1057 Cyg 1.42 0.61
01:45–03:15 M31 1.5 0.49
03:15–03:40 M33 0.42 0.37
03:40–04:10 M31 0.5 0.32
04:10–04:30 M33 0.33 0.31
04:30–05:50 — nothing worth pointing at — 1.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 21 unknown 03:05–03:40 (good) 89.7° at 08:20 89.1° 2.0
M42 Great Orion Nebula 0 unknown — 42.9° at 13:15 139.2° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 11:25 122.6° 0.0
NGC 7000 North America Nebula 52 unknown 00:35–03:40 (good) 87.2° at 04:35 63.6° 1.42
V1057 Cyg 52 unknown 00:35–03:40 (good) 87.3° at 04:35 63.6° 1.42
M33 Triangulum Pinwheel 5 unknown 03:15–03:40 (marginal) 79.1° at 09:10 95.0° 0.75

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-06-17"

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"}.