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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 Monday, 04 September 2028 · astronomical night 21:25 → 05:14 (7.81 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:55–21:30: quality 0.2M31 21:30–04:45: quality 0.4M31 04:45–05:15: quality 0.5M31 05:15–05:45: quality 0.2M31 05:45–05:50: quality 0.3M31 05:50–06:25: quality 0.1observe M31 00:05–01:35M42M42 04:15–04:25: quality 0.3M42 04:25–04:50: quality 0.4M42 04:50–05:10: quality 0.5M42 05:10–05:15: quality 0.6M42 05:15–05:50: quality 0.3M42 05:50–06:25: quality 0.1observe M42 04:35–05:15M45M45 00:35–00:45: quality 0.2M45 00:45–01:10: quality 0.3M45 01:10–02:10: quality 0.4M45 02:10–04:05: quality 0.5M45 04:05–05:15: quality 0.6M45 05:15–05:50: quality 0.3M45 05:50–06:25: quality 0.1observe M45 01:35–03:05observe M45 05:20–05:50NGC 7000NGC 7000 20:20–20:55: quality 0.1NGC 7000 20:55–21:30: quality 0.3NGC 7000 21:30–22:15: quality 0.6NGC 7000 22:15–02:15: quality 0.5NGC 7000 02:15–05:15: quality 0.4NGC 7000 05:15–05:50: quality 0.2observe NGC 7000 20:55–21:20observe NGC 7000 21:30–22:35V1057 CygV1057 Cyg 20:20–20:55: quality 0.1V1057 Cyg 20:55–21:30: quality 0.3V1057 Cyg 21:30–22:15: quality 0.6V1057 Cyg 22:15–02:15: quality 0.5V1057 Cyg 02:15–05:15: quality 0.4V1057 Cyg 05:15–05:50: quality 0.2observe V1057 Cyg 22:35–00:05M33M33 22:00–22:20: quality 0.2M33 22:20–22:55: quality 0.3M33 22:55–04:55: quality 0.4M33 04:55–05:15: quality 0.5M33 05:15–05:50: quality 0.2M33 05:50–06:25: quality 0.1observe M33 03:05–04:35scheduleNGC 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
19:45–20:55 — nothing worth pointing at — 1.17
20:55–21:20 NGC 7000 0.42 0.31
21:20–21:30 — nothing worth pointing at — 0.17
21:30–22:35 NGC 7000 1.08 0.56
22:35–00:05 V1057 Cyg 1.5 0.5
00:05–01:35 M31 1.5 0.4
01:35–03:05 M45 1.5 0.46
03:05–04:35 M33 1.5 0.41
04:35–05:15 M42 0.67 0.48
05:15–05:20 — nothing worth pointing at — 0.08
05:20–05:50 M45 0.5 0.31
05:50–06:55 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 41 unknown 21:30–05:15 (marginal) 89.6° at 03:05 43.4° 1.5
M42 Great Orion Nebula 9 unknown 04:15–05:15 (marginal) 42.9° at 08:00 92.0° 0.67
M45 Seven Sisters 36 unknown 01:00–05:15 (marginal) 72.5° at 06:10 66.4° 2.0
NGC 7000 North America Nebula 59 unknown 21:30–05:15 (marginal) 87.2° at 23:25 54.1° 1.5
V1057 Cyg 59 unknown 21:30–05:15 (marginal) 87.3° at 23:25 54.0° 1.5
M33 Triangulum Pinwheel 34 unknown 22:35–05:15 (marginal) 79.1° at 04:00 41.8° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-09-04"

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"}.