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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 June 2028 · astronomical night 23:08 → 03:35 (4.45 h) · Moon 43% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 01:50–02:15: quality 0.4M31 02:15–02:35: quality 0.5M31 02:35–03:20: quality 0.6M31 03:20–03:40: quality 0.7M31 03:40–04:30: quality 0.3M31 04:30–05:15: quality 0.1observe M31 01:50–03:25M42M45NGC 7000NGC 7000 21:50–22:20: quality 0.1NGC 7000 22:20–22:45: quality 0.3NGC 7000 22:45–23:10: quality 0.4NGC 7000 23:10–23:45: quality 0.8NGC 7000 23:45–01:15: quality 0.9NGC 7000 01:15–01:35: quality 1.0NGC 7000 01:35–01:45: quality 0.8NGC 7000 01:45–02:15: quality 0.9NGC 7000 02:15–03:40: quality 0.8NGC 7000 03:40–04:30: quality 0.4NGC 7000 04:30–05:15: quality 0.1observe NGC 7000 22:25–00:00observe NGC 7000 03:40–04:20V1057 CygV1057 Cyg 21:50–22:20: quality 0.1V1057 Cyg 22:20–22:45: quality 0.3V1057 Cyg 22:45–23:10: quality 0.4V1057 Cyg 23:10–23:45: quality 0.8V1057 Cyg 23:45–01:15: quality 0.9V1057 Cyg 01:15–01:35: quality 1.0V1057 Cyg 01:35–01:45: quality 0.8V1057 Cyg 01:45–02:15: quality 0.9V1057 Cyg 02:15–03:40: quality 0.8V1057 Cyg 03:40–04:30: quality 0.4V1057 Cyg 04:30–05:15: quality 0.1observe V1057 Cyg 00:00–01:50M33M33 03:20–03:30: quality 0.3M33 03:30–03:40: quality 0.4M33 03:40–04:00: quality 0.2M33 04:00–04:30: quality 0.3M33 04:30–05:15: quality 0.1observe M33 03:25–03:40observe M33 04:20–04:30scheduleNGC 7000V1057 CygM31NGC 700022:0000:0002:0004:00

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
20:55–22:25 — nothing worth pointing at — 1.5
22:25–00:00 NGC 7000 1.58 0.61
00:00–01:50 V1057 Cyg 1.83 0.91
01:50–03:25 M31 1.58 0.54
03:25–03:40 M33 0.25 0.37
03:40–04:20 NGC 7000 0.67 0.4
04:20–04:30 M33 0.17 0.3
04:30–05:50 — nothing worth pointing at — 1.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 23 unknown 02:45–03:40 (good) 89.7° at 08:25 36.4° 1.58
M42 Great Orion Nebula 0 unknown — 42.9° at 13:20 83.2° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 11:30 56.1° 0.0
NGC 7000 North America Nebula 97 unknown 23:10–03:40 (good) 87.2° at 04:40 55.9° 2.25
V1057 Cyg 97 unknown 23:10–03:40 (good) 87.3° at 04:40 55.8° 1.83
M33 Triangulum Pinwheel 4 unknown 03:20–03:40 (marginal) 79.1° at 09:15 32.4° 0.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-06-15"

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"}.