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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, 26 January 2037 · astronomical night 19:05 → 06:01 (10.93 h) · Moon 73% (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 19:10–19:30: quality 0.6M31 19:30–22:20: quality 0.5M31 22:20–22:50: quality 0.4M31 22:50–23:20: quality 0.3M31 23:20–23:25: quality 0.2observe M31 19:50–20:55M42M42 18:35–19:10: quality 0.2M42 19:10–00:50: quality 0.4M42 00:50–01:20: quality 0.3M42 01:20–01:25: quality 0.2observe M42 23:05–01:05M45M45 18:00–18:35: quality 0.1M45 18:35–19:10: quality 0.2M45 19:10–19:15: quality 0.5M45 19:15–20:55: quality 0.4M45 20:55–00:30: quality 0.5M45 00:30–00:55: quality 0.4M45 00:55–01:20: quality 0.3M45 01:20–01:25: quality 0.2observe M45 22:00–23:05observe M45 01:05–01:10NGC 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 19:10–19:15: quality 0.5NGC 7000 19:15–19:40: quality 0.4NGC 7000 19:40–19:50: quality 0.3NGC 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 19:10–19:50V1057 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 19:10–19:15: quality 0.5V1057 Cyg 19:15–19:40: quality 0.4V1057 Cyg 19:40–19:50: quality 0.3V1057 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 18:35–18:55: quality 0.3M33 18:55–19:10: quality 0.2M33 19:10–21:15: quality 0.5M33 21:15–23:00: quality 0.4M33 23:00–23:25: quality 0.3M33 23:25–23:35: quality 0.2observe M33 20:55–22:00scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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 0.3
18:45–19:10 — nothing worth pointing at — 0.42
19:10–19:50 NGC 7000 0.67 0.39
19:50–20:55 M31 1.08 0.52
20:55–22:00 M33 1.08 0.45
22:00–23:05 M45 1.08 0.46
23:05–01:05 M42 2.0 0.42
01:05–01:10 M45 0.08 0.3
01:10–07:40 — nothing worth pointing at — 6.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 31 unknown 19:10–23:05 (marginal) 89.7° at 16:40 51.8° 1.08
M42 Great Orion Nebula 29 unknown 19:10–01:05 (marginal) 42.9° at 21:30 29.4° 2.0
M45 Seven Sisters 34 unknown 19:10–01:10 (marginal) 72.5° at 19:45 10.3° 1.17
NGC 7000 North America Nebula 8 unknown 19:10–19:50 (marginal) 87.2° at 12:55 91.6° 0.83
V1057 Cyg 8 unknown 19:10–19:50 (marginal) 87.3° at 12:55 91.6° 0.0
M33 Triangulum Pinwheel 26 unknown 19:10–23:10 (marginal) 79.1° at 17:30 39.5° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-01-26"

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"}.