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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, 15 January 2038 · astronomical night 18:53 → 06:07 (11.22 h) · Moon 72% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:25: quality 0.1M31 18:25–18:55: quality 0.3M31 18:55–23:05: quality 0.5M31 23:05–23:35: quality 0.4M31 23:35–00:05: quality 0.3observe M31 20:35–21:55M42M42 18:30–18:55: quality 0.1M42 18:55–19:20: quality 0.3M42 19:20–21:40: quality 0.4M42 21:40–01:20: quality 0.5M42 01:20–01:50: quality 0.4M42 01:50–02:05: quality 0.3observe M42 00:35–02:00M45M45 17:50–18:25: quality 0.1M45 18:25–18:55: quality 0.2M45 18:55–01:25: quality 0.5M45 01:25–01:50: quality 0.4M45 01:50–02:05: quality 0.3observe M45 23:15–00:35NGC 7000NGC 7000 17:50–18:25: quality 0.1NGC 7000 18:25–18:55: quality 0.3NGC 7000 18:55–19:35: quality 0.6NGC 7000 19:35–19:55: quality 0.5NGC 7000 19:55–20:20: quality 0.4NGC 7000 20:20–20:35: quality 0.3NGC 7000 06:45–07:15: quality 0.1observe NGC 7000 18:25–19:45V1057 CygV1057 Cyg 17:50–18:25: quality 0.1V1057 Cyg 18:25–18:55: quality 0.3V1057 Cyg 18:55–19:35: quality 0.6V1057 Cyg 19:35–19:55: quality 0.5V1057 Cyg 19:55–20:20: quality 0.4V1057 Cyg 20:20–20:35: quality 0.3V1057 Cyg 06:45–07:15: quality 0.1observe V1057 Cyg 19:45–20:35M33M33 17:50–18:25: quality 0.1M33 18:25–18:55: quality 0.2M33 18:55–21:10: quality 0.5M33 21:10–23:45: quality 0.4M33 23:45–00:10: quality 0.3M33 00:10–00:15: quality 0.2observe M33 21:55–23:15scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:15–18:25 — nothing worth pointing at — 1.17
18:25–19:45 NGC 7000 1.33 0.48
19:45–20:35 V1057 Cyg 0.83 0.4
20:35–21:55 M31 1.33 0.49
21:55–23:15 M33 1.33 0.43
23:15–00:35 M45 1.33 0.5
00:35–02:00 M42 1.42 0.44
02:00–07:50 — nothing worth pointing at — 5.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 35 unknown 18:55–23:50 (marginal) 89.8° at 17:25 44.4° 1.33
M42 Great Orion Nebula 41 unknown 19:00–02:00 (marginal) 42.9° at 22:15 37.7° 1.42
M45 Seven Sisters 44 unknown 18:55–02:00 (marginal) 72.5° at 20:30 11.2° 1.33
NGC 7000 North America Nebula 16 unknown 18:55–19:00 (good) 87.2° at 13:40 84.8° 1.33
V1057 Cyg 16 unknown 18:55–19:00 (good) 87.3° at 13:40 84.8° 0.83
M33 Triangulum Pinwheel 29 unknown 18:55–23:55 (marginal) 79.2° at 18:15 30.4° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2038-01-15"

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"}.