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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, 27 January 2040 · astronomical night 19:05 → 06:01 (10.93 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:00–18:35: quality 0.1M31 18:35–19:10: quality 0.3M31 19:10–19:40: quality 0.7M31 19:40–21:05: quality 0.6M31 21:05–22:25: quality 0.5M31 22:25–22:50: quality 0.4M31 22:50–23:20: quality 0.3observe M31 18:35–19:35observe M31 21:55–23:05M42M42 18:30–18:35: quality 0.1M42 18:35–19:10: quality 0.2M42 19:10–20:00: quality 0.4M42 20:00–00:20: quality 0.3M42 00:20–01:15: quality 0.2M42 01:15–01:20: quality 0.1observe M42 21:35–21:55M45M45 18:00–18:35: quality 0.1M45 18:35–19:10: quality 0.3M45 19:10–20:25: quality 0.5M45 20:25–23:05: quality 0.4M45 23:05–00:50: quality 0.3M45 00:50–01:20: quality 0.2observe M45 20:35–21:35observe M45 23:15–00:30NGC 7000NGC 7000 18:00–18:35: quality 0.1NGC 7000 18:35–19:10: quality 0.3NGC 7000 19:10–19:25: quality 0.5NGC 7000 19:25–19:45: quality 0.4NGC 7000 19:45–19:50: quality 0.3NGC 7000 06:00–06:05: quality 0.3NGC 7000 06:05–06:35: quality 0.2NGC 7000 06:35–07:10: quality 0.1observe NGC 7000 06:00–06:05V1057 CygV1057 Cyg 18:00–18:35: quality 0.1V1057 Cyg 18:35–19:10: quality 0.3V1057 Cyg 19:10–19:25: quality 0.5V1057 Cyg 19:25–19:45: quality 0.4V1057 Cyg 19:45–19:50: quality 0.3V1057 Cyg 06:00–06:05: quality 0.3V1057 Cyg 06:05–06:35: quality 0.2V1057 Cyg 06:35–07:10: quality 0.1M33M33 18:00–18:35: quality 0.1M33 18:35–19:10: quality 0.3M33 19:10–20:55: quality 0.6M33 20:55–22:35: quality 0.5M33 22:35–23:00: quality 0.4M33 23:00–23:25: quality 0.3M33 23:25–23:30: quality 0.2observe M33 19:35–20:35observe M33 23:05–23:15scheduleM31M33M45M31M4518:0020:0022:0000:0002:0004:0006:00

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
17:25–18:35 — nothing worth pointing at — 1.17
18:35–19:35 M31 1.0 0.48
19:35–20:35 M33 1.0 0.61
20:35–21:35 M45 1.0 0.43
21:35–21:55 M42 0.33 0.3
21:55–23:05 M31 1.17 0.42
23:05–23:15 M33 0.17 0.31
23:15–00:30 M45 1.25 0.33
00:30–06:00 — nothing worth pointing at — 5.5
06:00–06:05 NGC 7000 0.08 0.35
06:05–07:40 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 41 unknown 19:10–20:20 (good) 89.8° at 16:40 83.5° 2.17
M42 Great Orion Nebula 18 unknown 19:10–21:55 (marginal) 42.9° at 21:30 42.6° 0.33
M45 Seven Sisters 32 unknown 19:10–00:30 (marginal) 72.5° at 19:45 52.4° 2.25
NGC 7000 North America Nebula 9 unknown 19:10–19:50 (marginal) 87.2° at 12:55 108.4° 0.08
V1057 Cyg 9 unknown 19:10–19:50 (marginal) 87.3° at 12:55 108.5° 0.0
M33 Triangulum Pinwheel 40 unknown 19:10–20:15 (good) 79.2° at 17:30 78.6° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-01-27"

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"}.