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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 Tuesday, 17 October 2028 · astronomical night 20:08 → 06:04 (9.93 h) · Moon 0% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:40: quality 0.1M31 19:40–20:10: quality 0.4M31 20:10–20:55: quality 0.9M31 20:55–03:45: quality 1.0M31 03:45–05:10: quality 0.9M31 05:10–06:05: quality 0.8M31 06:05–06:10: quality 0.4M31 06:10–06:40: quality 0.3M31 06:40–07:00: quality 0.1observe M31 23:30–01:25M42M42 01:25–01:30: quality 0.4M42 01:30–01:45: quality 0.5M42 01:45–02:05: quality 0.6M42 02:05–02:20: quality 0.7M42 02:20–03:30: quality 0.8M42 03:30–06:05: quality 0.9M42 06:05–06:40: quality 0.4M42 06:40–07:10: quality 0.1observe M42 05:15–06:40M45M45 21:50–21:55: quality 0.4M45 21:55–22:10: quality 0.5M45 22:10–22:20: quality 0.6M45 22:20–22:35: quality 0.7M45 22:35–23:25: quality 0.8M45 23:25–00:45: quality 0.9M45 00:45–06:05: quality 1.0M45 06:05–06:40: quality 0.5M45 06:40–07:10: quality 0.1observe M45 01:25–03:20NGC 7000NGC 7000 19:05–19:40: quality 0.2NGC 7000 19:40–20:10: quality 0.5NGC 7000 20:10–00:05: quality 1.0NGC 7000 00:05–01:35: quality 0.9NGC 7000 01:35–02:30: quality 0.8NGC 7000 02:30–02:45: quality 0.7NGC 7000 02:45–03:00: quality 0.6NGC 7000 03:00–03:20: quality 0.5NGC 7000 03:20–03:30: quality 0.4observe NGC 7000 19:40–21:35V1057 CygV1057 Cyg 19:05–19:40: quality 0.2V1057 Cyg 19:40–20:10: quality 0.5V1057 Cyg 20:10–00:05: quality 1.0V1057 Cyg 00:05–01:35: quality 0.9V1057 Cyg 01:35–02:30: quality 0.8V1057 Cyg 02:30–02:45: quality 0.7V1057 Cyg 02:45–03:00: quality 0.6V1057 Cyg 03:00–03:20: quality 0.5V1057 Cyg 03:20–03:30: quality 0.4observe V1057 Cyg 21:35–23:30M33M33 19:15–19:40: quality 0.1M33 19:40–19:55: quality 0.3M33 19:55–20:10: quality 0.4M33 20:10–20:50: quality 0.8M33 20:50–22:10: quality 0.9M33 22:10–04:10: quality 1.0M33 04:10–05:30: quality 0.9M33 05:30–06:05: quality 0.8M33 06:05–06:25: quality 0.4M33 06:25–06:40: quality 0.3M33 06:40–07:10: quality 0.1observe M33 03:20–05:15scheduleNGC 7000V1057 CygM31M45M33M4220:0022:0000:0002:0004:0006:00

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
18:35–19:40 — nothing worth pointing at — 1.08
19:40–21:35 NGC 7000 1.92 0.87
21:35–23:30 V1057 Cyg 1.92 1.0
23:30–01:25 M31 1.92 1.0
01:25–03:20 M45 1.92 1.0
03:20–05:15 M33 1.92 0.94
05:15–06:40 M42 1.42 0.7
06:40–07:40 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:10–06:05 (good) 89.5° at 00:20 151.2° 1.92
M42 Great Orion Nebula 89 unknown 01:55–06:05 (good) 42.9° at 05:10 112.6° 1.42
M45 Seven Sisters 100 unknown 22:15–06:05 (good) 72.5° at 03:20 142.5° 1.92
NGC 7000 North America Nebula 100 unknown 20:10–02:55 (good) 87.2° at 20:35 117.8° 1.92
V1057 Cyg 100 unknown 20:10–02:55 (good) 87.3° at 20:35 117.8° 1.92
M33 Triangulum Pinwheel 100 unknown 20:10–06:05 (good) 79.1° at 01:10 162.0° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-10-17"

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"}.