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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, 08 October 2027 · astronomical night 20:23 → 05:53 (9.5 h) · Moon 63% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:20–19:55: quality 0.1M31 19:55–20:10: quality 0.3M31 20:10–20:25: quality 0.4M31 20:25–21:00: quality 0.7M31 21:00–23:35: quality 0.8M31 23:35–01:05: quality 0.9M31 01:05–04:20: quality 1.0M31 04:20–05:50: quality 0.9M31 05:50–05:55: quality 0.8M31 05:55–06:30: quality 0.4M31 06:30–07:00: quality 0.1observe M31 21:45–23:35M42M42 02:05–02:10: quality 0.4M42 02:10–02:25: quality 0.5M42 02:25–02:40: quality 0.6M42 02:40–03:00: quality 0.7M42 03:00–04:10: quality 0.8M42 04:10–05:55: quality 0.9M42 05:55–06:30: quality 0.4M42 06:30–07:00: quality 0.1observe M42 05:05–06:30M45M45 22:25–22:40: quality 0.4M45 22:40–22:50: quality 0.5M45 22:50–23:05: quality 0.6M45 23:05–23:25: quality 0.7M45 23:25–00:40: quality 0.8M45 00:40–01:20: quality 0.9M45 01:20–05:55: quality 1.0M45 05:55–06:30: quality 0.5M45 06:30–07:00: quality 0.1observe M45 03:15–05:05NGC 7000NGC 7000 19:20–19:55: quality 0.1NGC 7000 19:55–20:25: quality 0.4NGC 7000 20:25–01:05: quality 0.8NGC 7000 01:05–02:10: quality 0.9NGC 7000 02:10–03:05: quality 0.8NGC 7000 03:05–03:25: quality 0.7NGC 7000 03:25–03:40: quality 0.6NGC 7000 03:40–04:00: quality 0.5NGC 7000 04:00–04:05: quality 0.4observe NGC 7000 19:55–21:45V1057 CygV1057 Cyg 19:20–19:55: quality 0.1V1057 Cyg 19:55–20:25: quality 0.4V1057 Cyg 20:25–01:05: quality 0.8V1057 Cyg 01:05–02:10: quality 0.9V1057 Cyg 02:10–03:05: quality 0.8V1057 Cyg 03:05–03:25: quality 0.7V1057 Cyg 03:25–03:40: quality 0.6V1057 Cyg 03:40–04:00: quality 0.5V1057 Cyg 04:00–04:05: quality 0.4observe V1057 Cyg 01:25–03:15M33M33 19:50–19:55: quality 0.1M33 19:55–20:20: quality 0.2M33 20:20–20:25: quality 0.3M33 20:25–20:30: quality 0.5M33 20:30–20:45: quality 0.6M33 20:45–22:00: quality 0.7M33 22:00–23:20: quality 0.8M33 23:20–01:05: quality 0.9M33 01:05–04:50: quality 1.0M33 04:50–05:55: quality 0.9M33 05:55–06:30: quality 0.4M33 06:30–07:00: quality 0.1observe M33 23:35–01:25scheduleNGC 7000M31M33V1057 CygM45M4220:0022:0000:0002:0004:0006:00

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
18:50–19:55 — nothing worth pointing at — 1.08
19:55–21:45 NGC 7000 1.83 0.65
21:45–23:35 M31 1.83 0.83
23:35–01:25 M33 1.83 0.9
01:25–03:15 V1057 Cyg 1.83 0.84
03:15–05:05 M45 1.83 1.0
05:05–06:30 M42 1.42 0.7
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:25–05:55 (good) 89.7° at 00:55 87.8° 1.83
M42 Great Orion Nebula 74 unknown 02:35–05:55 (good) 42.9° at 05:50 133.3° 1.42
M45 Seven Sisters 100 unknown 23:00–05:55 (good) 72.5° at 04:00 118.8° 1.83
NGC 7000 North America Nebula 92 unknown 20:25–03:30 (good) 87.2° at 21:10 65.8° 1.83
V1057 Cyg 92 unknown 20:25–03:30 (good) 87.3° at 21:10 65.7° 1.83
M33 Triangulum Pinwheel 100 unknown 20:35–05:55 (good) 79.1° at 01:45 92.4° 1.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-10-08"

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"}.