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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 Thursday, 23 October 2042 · astronomical night 20:00 → 06:10 (10.16 h) · Moon 69% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:30: quality 0.1M31 19:30–20:05: quality 0.3M31 20:05–22:20: quality 0.7M31 22:20–01:50: quality 0.8M31 01:50–03:20: quality 1.0M31 03:20–04:50: quality 0.9M31 04:50–05:40: quality 0.8M31 05:40–05:55: quality 0.7M31 05:55–06:15: quality 0.6M31 06:15–06:20: quality 0.3M31 06:20–06:40: quality 0.2observe M31 21:25–23:20observe M31 05:35–06:05M42M42 01:05–01:15: quality 0.4M42 01:15–01:35: quality 0.5M42 01:35–01:50: quality 0.6M42 01:50–02:00: quality 0.7M42 02:00–03:10: quality 0.8M42 03:10–06:15: quality 0.9M42 06:15–06:45: quality 0.4M42 06:45–07:20: quality 0.1observe M42 03:10–05:35M45M45 21:25–21:30: quality 0.3M45 21:30–21:45: quality 0.4M45 21:45–22:00: quality 0.5M45 22:00–22:20: quality 0.6M45 22:20–23:25: quality 0.7M45 23:25–00:45: quality 0.8M45 00:45–01:50: quality 0.9M45 01:50–05:45: quality 1.0M45 05:45–06:15: quality 0.9M45 06:15–06:25: quality 0.5M45 06:25–06:45: quality 0.4M45 06:45–07:20: quality 0.1observe M45 01:15–03:10observe M45 06:05–06:45NGC 7000NGC 7000 19:00–19:30: quality 0.1NGC 7000 19:30–20:05: quality 0.4NGC 7000 20:05–01:50: quality 0.7NGC 7000 01:50–02:05: quality 0.8NGC 7000 02:05–02:25: quality 0.7NGC 7000 02:25–02:40: quality 0.6NGC 7000 02:40–03:00: quality 0.5NGC 7000 03:00–03:10: quality 0.4V1057 CygV1057 Cyg 19:00–19:30: quality 0.1V1057 Cyg 19:30–20:05: quality 0.4V1057 Cyg 20:05–01:50: quality 0.7V1057 Cyg 01:50–02:05: quality 0.8V1057 Cyg 02:05–02:25: quality 0.7V1057 Cyg 02:25–02:40: quality 0.6V1057 Cyg 02:40–03:00: quality 0.5V1057 Cyg 03:00–03:05: quality 0.4observe V1057 Cyg 19:30–21:25M33M33 19:00–19:30: quality 0.1M33 19:30–20:05: quality 0.3M33 20:05–20:45: quality 0.6M33 20:45–22:25: quality 0.7M33 22:25–01:50: quality 0.8M33 01:50–03:50: quality 1.0M33 03:50–05:10: quality 0.9M33 05:10–06:00: quality 0.8M33 06:00–06:15: quality 0.7M33 06:15–06:35: quality 0.3M33 06:35–06:45: quality 0.2M33 06:45–06:50: quality 0.1observe M33 23:20–01:15scheduleV1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
18:25–19:30 — nothing worth pointing at — 1.08
19:30–21:25 V1057 Cyg 1.92 0.6
21:25–23:20 M31 1.92 0.75
23:20–01:15 M33 1.92 0.79
01:15–03:10 M45 1.92 0.96
03:10–05:35 M42 2.42 0.88
05:35–06:05 M31 0.5 0.7
06:05–06:45 M45 0.67 0.56
06:45–07:45 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:05–06:05 (good) 89.7° at 23:55 71.7° 2.42
M42 Great Orion Nebula 89 unknown 01:40–06:15 (good) 42.9° at 04:50 113.5° 2.42
M45 Seven Sisters 100 unknown 22:10–06:15 (good) 72.6° at 03:00 96.9° 2.58
NGC 7000 North America Nebula 81 unknown 20:05–02:35 (good) 87.2° at 20:10 63.2° 0.0
V1057 Cyg 81 unknown 20:05–02:30 (good) 87.2° at 20:10 63.1° 1.92
M33 Triangulum Pinwheel 100 unknown 20:05–06:15 (good) 79.2° at 00:50 72.8° 1.92

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-10-23"

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"}.