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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, 15 October 2027 · astronomical night 20:12 → 06:01 (9.81 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:10–19:45: quality 0.1M31 19:45–20:15: quality 0.2M31 20:15–21:55: quality 0.4M31 21:55–00:45: quality 0.3M31 00:45–01:55: quality 0.2M31 01:55–06:05: quality 0.3M31 06:05–06:30: quality 0.2M31 06:30–06:35: quality 0.1M42M42 01:35–01:55: quality 0.2M42 01:55–02:25: quality 0.3M42 02:25–04:05: quality 0.4M42 04:05–06:05: quality 0.5M42 06:05–06:35: quality 0.3M42 06:35–07:10: quality 0.1observe M42 02:10–03:55M45M45 22:00–22:50: quality 0.2M45 22:50–04:25: quality 0.3M45 04:25–06:05: quality 0.4M45 06:05–06:35: quality 0.2M45 06:35–07:10: quality 0.1observe M45 03:55–05:40NGC 7000NGC 7000 19:10–19:45: quality 0.1NGC 7000 19:45–20:15: quality 0.3NGC 7000 20:15–21:50: quality 0.6NGC 7000 21:50–00:25: quality 0.5NGC 7000 00:25–02:45: quality 0.4NGC 7000 02:45–03:20: quality 0.3NGC 7000 03:20–03:40: quality 0.2observe NGC 7000 19:45–21:30V1057 CygV1057 Cyg 19:10–19:45: quality 0.1V1057 Cyg 19:45–20:15: quality 0.3V1057 Cyg 20:15–21:50: quality 0.6V1057 Cyg 21:50–00:25: quality 0.5V1057 Cyg 00:25–02:45: quality 0.4V1057 Cyg 02:45–03:20: quality 0.3V1057 Cyg 03:20–03:40: quality 0.2observe V1057 Cyg 21:30–02:10M33M33 19:45–19:55: quality 0.1M33 19:55–20:15: quality 0.2M33 20:15–20:50: quality 0.4M33 20:50–00:45: quality 0.3M33 00:45–01:55: quality 0.2M33 01:55–05:50: quality 0.3M33 05:50–06:05: quality 0.4M33 06:05–06:35: quality 0.2observe M33 05:40–06:05scheduleNGC 7000V1057 CygM42M4520:0022:0000:0002:0004:0006:00

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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–21:30 NGC 7000 1.75 0.52
21:30–02:10 V1057 Cyg 4.67 0.48
02:10–03:55 M42 1.75 0.39
03:55–05:40 M45 1.75 0.37
05:40–06:05 M33 0.42 0.35
06:05–07:35 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 20:15–22:55 (marginal) 89.6° at 00:30 28.5° 0.0
M42 Great Orion Nebula 28 unknown 02:10–06:05 (marginal) 42.9° at 05:20 63.8° 1.75
M45 Seven Sisters 27 unknown 03:10–06:05 (marginal) 72.5° at 03:30 33.2° 1.75
NGC 7000 North America Nebula 57 unknown 20:15–20:45 (good) 87.3° at 20:45 64.1° 1.75
V1057 Cyg 57 unknown 20:15–20:45 (good) 87.3° at 20:45 64.1° 4.67
M33 Triangulum Pinwheel 28 unknown 20:15–22:50 (marginal) 79.1° at 01:20 15.9° 0.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-10-15"

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"}.