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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 Friday, 30 June 2028 · astronomical night 23:09 → 03:40 (4.53 h) · Moon 66% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 00:50–01:00: quality 0.4M31 01:00–01:20: quality 0.5M31 01:20–01:30: quality 0.6M31 01:30–01:45: quality 0.7M31 01:45–02:40: quality 0.8M31 02:40–03:45: quality 0.9M31 03:45–04:35: quality 0.5M31 04:35–04:45: quality 0.1M31 04:45–05:20: quality 0.2observe M31 01:30–03:05M42M45M45 04:55–05:20: quality 0.1NGC 7000NGC 7000 21:35–22:20: quality 0.1NGC 7000 22:20–23:10: quality 0.4NGC 7000 23:10–23:55: quality 0.8NGC 7000 23:55–01:20: quality 0.9NGC 7000 01:20–03:45: quality 1.0NGC 7000 03:45–04:35: quality 0.5NGC 7000 04:35–05:20: quality 0.2observe NGC 7000 22:20–23:55V1057 CygV1057 Cyg 21:35–22:20: quality 0.1V1057 Cyg 22:20–23:10: quality 0.4V1057 Cyg 23:10–23:55: quality 0.8V1057 Cyg 23:55–01:20: quality 0.9V1057 Cyg 01:20–03:45: quality 1.0V1057 Cyg 03:45–04:35: quality 0.5V1057 Cyg 04:35–05:20: quality 0.2observe V1057 Cyg 23:55–01:30M33M33 02:20–02:30: quality 0.4M33 02:30–02:45: quality 0.5M33 02:45–02:55: quality 0.6M33 02:55–03:10: quality 0.7M33 03:10–03:45: quality 0.8M33 03:45–04:35: quality 0.4M33 04:35–05:20: quality 0.1observe M33 03:05–04:35scheduleNGC 7000V1057 CygM31M3322:0000:0002:0004:00

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
22:20–23:55 NGC 7000 1.58 0.59
23:55–01:30 V1057 Cyg 1.58 0.91
01:30–03:05 M31 1.58 0.81
03:05–04:35 M33 1.5 0.59
04:35–05:55 — nothing worth pointing at — 1.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 63 unknown 01:25–03:45 (good) 89.6° at 07:25 151.9° 1.58
M42 Great Orion Nebula 0 unknown — 42.9° at 12:20 117.4° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 10:30 148.6° 0.0
NGC 7000 North America Nebula 100 unknown 23:10–03:45 (good) 87.2° at 03:40 115.4° 1.58
V1057 Cyg 100 unknown 23:10–03:45 (good) 87.3° at 03:45 115.5° 1.58
M33 Triangulum Pinwheel 29 unknown 02:50–03:45 (good) 79.1° at 08:15 165.1° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-06-30"

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"}.