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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, 27 January 2048 · astronomical night 19:05 → 06:01 (10.92 h) · Moon 91% (waxing gibbous) · 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 19:10–19:45: quality 0.6M31 19:45–21:40: quality 0.5M31 21:40–22:40: quality 0.4M31 22:40–23:10: quality 0.3M31 23:10–23:20: quality 0.2observe M31 19:10–20:00observe M31 22:10–22:55M42M42 18:35–19:10: quality 0.1M42 19:10–00:30: quality 0.3M42 00:30–01:20: quality 0.2M45M45 18:00–18:35: quality 0.1M45 18:35–19:10: quality 0.2M45 19:10–19:45: quality 0.4M45 19:45–00:45: quality 0.3M45 00:45–01:20: quality 0.2observe M45 20:50–22:10NGC 7000NGC 7000 18:00–18:35: quality 0.1NGC 7000 18:35–19:05: quality 0.3NGC 7000 19:05–19:10: quality 0.2NGC 7000 19:10–19:20: quality 0.5NGC 7000 19:20–19:40: quality 0.4NGC 7000 19:40–19:50: quality 0.3NGC 7000 06:00–06:05: quality 0.4NGC 7000 06:05–06:20: quality 0.2NGC 7000 06:20–06:35: quality 0.3NGC 7000 06:35–07:10: quality 0.1observe NGC 7000 18:35–18:45observe NGC 7000 06:00–06:05V1057 CygV1057 Cyg 18:00–18:35: quality 0.1V1057 Cyg 18:35–19:05: quality 0.3V1057 Cyg 19:05–19:10: quality 0.2V1057 Cyg 19:10–19:20: quality 0.5V1057 Cyg 19:20–19:40: quality 0.4V1057 Cyg 19:40–19:50: quality 0.3V1057 Cyg 06:00–06:05: quality 0.4V1057 Cyg 06:05–06:20: quality 0.2V1057 Cyg 06:20–06:35: quality 0.3V1057 Cyg 06:35–07:10: quality 0.1M33M33 18:00–18:35: quality 0.1M33 18:35–19:10: quality 0.3M33 19:10–21:00: quality 0.5M33 21:00–22:50: quality 0.4M33 22:50–23:15: quality 0.3M33 23:15–23:35: quality 0.2observe M33 20:00–20:50observe M33 22:55–23:00scheduleM31M33M4518:0020:0022:0000:0002:0004:0006:00

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
18:35–18:45 NGC 7000 0.17 0.31
18:45–19:10 — nothing worth pointing at — 0.42
19:10–20:00 M31 0.83 0.56
20:00–20:50 M33 0.83 0.48
20:50–22:10 M45 1.33 0.31
22:10–22:55 M31 0.75 0.38
22:55–23:00 M33 0.08 0.32
23:00–06:00 — nothing worth pointing at — 7.0
06:00–06:05 NGC 7000 0.08 0.41
06:05–07:40 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 30 unknown 19:10–22:55 (marginal) 89.8° at 16:40 68.7° 1.58
M42 Great Orion Nebula 12 unknown — 42.9° at 21:30 30.4° 0.0
M45 Seven Sisters 18 unknown 19:10–22:10 (marginal) 72.6° at 19:45 32.8° 1.33
NGC 7000 North America Nebula 8 unknown 19:10–19:50 (marginal) 87.2° at 12:55 101.8° 0.25
V1057 Cyg 8 unknown 19:10–19:50 (marginal) 87.2° at 12:55 101.8° 0.0
M33 Triangulum Pinwheel 27 unknown 19:10–23:00 (marginal) 79.2° at 17:30 60.9° 0.92

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2048-01-27"

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"}.