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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 2044 · astronomical night 18:53 → 06:07 (11.23 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:10: quality 0.2M31 18:10–18:20: quality 0.1M31 18:20–18:55: quality 0.4M31 18:55–20:45: quality 0.8M31 20:45–22:05: quality 0.7M31 22:05–23:10: quality 0.6M31 23:10–23:35: quality 0.5M31 23:35–23:55: quality 0.4M31 23:55–00:10: quality 0.3observe M31 21:50–23:05M42M42 18:35–18:40: quality 0.1M42 18:40–18:55: quality 0.2M42 18:55–19:20: quality 0.4M42 19:20–22:00: quality 0.5M42 22:00–00:45: quality 0.4M42 00:45–01:40: quality 0.3M42 01:40–02:10: quality 0.2observe M42 00:20–01:20M45M45 17:50–18:20: quality 0.1M45 18:20–18:55: quality 0.4M45 18:55–20:35: quality 0.7M45 20:35–22:55: quality 0.6M45 22:55–00:35: quality 0.5M45 00:35–01:30: quality 0.4M45 01:30–02:00: quality 0.3M45 02:00–02:10: quality 0.2observe M45 23:05–00:20observe M45 01:20–01:45NGC 7000NGC 7000 17:50–18:20: quality 0.1NGC 7000 18:20–18:55: quality 0.4NGC 7000 18:55–19:40: quality 0.7NGC 7000 19:40–20:00: quality 0.6NGC 7000 20:00–20:20: quality 0.5NGC 7000 20:20–20:35: quality 0.4NGC 7000 20:35–20:40: quality 0.3NGC 7000 06:50–07:15: quality 0.1observe NGC 7000 19:35–20:35V1057 CygV1057 Cyg 17:50–18:20: quality 0.1V1057 Cyg 18:20–18:55: quality 0.4V1057 Cyg 18:55–19:40: quality 0.7V1057 Cyg 19:40–20:00: quality 0.6V1057 Cyg 20:00–20:15: quality 0.5V1057 Cyg 20:15–20:35: quality 0.4V1057 Cyg 20:35–20:40: quality 0.3V1057 Cyg 06:50–07:15: quality 0.1observe V1057 Cyg 18:20–19:35M33M33 17:50–18:10: quality 0.2M33 18:10–18:20: quality 0.1M33 18:20–18:55: quality 0.4M33 18:55–20:55: quality 0.8M33 20:55–22:10: quality 0.7M33 22:10–23:25: quality 0.6M33 23:25–23:45: quality 0.5M33 23:45–00:05: quality 0.4M33 00:05–00:20: quality 0.3observe M33 20:35–21:50scheduleV1057 CygNGC 7000M33M31M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:10–18:20 — nothing worth pointing at — 1.17
18:20–19:35 V1057 Cyg 1.25 0.56
19:35–20:35 NGC 7000 1.0 0.52
20:35–21:50 M33 1.25 0.73
21:50–23:05 M31 1.25 0.63
23:05–00:20 M45 1.25 0.5
00:20–01:20 M42 1.0 0.34
01:20–01:45 M45 0.42 0.35
01:45–07:50 — nothing worth pointing at — 6.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 79 unknown 18:55–22:50 (good) 89.5° at 17:25 99.3° 1.25
M42 Great Orion Nebula 37 unknown 18:55–01:20 (marginal) 42.9° at 22:20 56.3° 1.0
M45 Seven Sisters 72 unknown 18:55–21:50 (good) 72.6° at 20:30 71.3° 1.67
NGC 7000 North America Nebula 25 unknown 18:55–19:50 (good) 87.2° at 13:45 115.1° 1.0
V1057 Cyg 25 unknown 18:55–19:50 (good) 87.2° at 13:45 115.2° 1.25
M33 Triangulum Pinwheel 80 unknown 18:55–22:55 (good) 79.2° at 18:20 96.4° 1.25
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2044-01-15"

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"}.