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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 Tuesday, 25 January 2028 · astronomical night 19:03 → 06:02 (10.99 h) · Moon 0% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:00–18:35: quality 0.2M31 18:35–19:05: quality 0.5M31 19:05–20:15: quality 1.0M31 20:15–21:40: quality 0.9M31 21:40–22:30: quality 0.8M31 22:30–22:50: quality 0.7M31 22:50–23:05: quality 0.6M31 23:05–23:20: quality 0.5M31 23:20–23:30: quality 0.4observe M31 22:05–23:15M42M42 18:00–18:35: quality 0.1M42 18:35–18:40: quality 0.3M42 18:40–19:05: quality 0.4M42 19:05–20:00: quality 0.8M42 20:00–23:25: quality 0.9M42 23:25–00:35: quality 0.8M42 00:35–00:50: quality 0.7M42 00:50–01:05: quality 0.6M42 01:05–01:20: quality 0.5M42 01:20–01:30: quality 0.4observe M42 23:15–01:30M45M45 18:00–18:35: quality 0.2M45 18:35–19:05: quality 0.5M45 19:05–22:35: quality 1.0M45 22:35–23:55: quality 0.9M45 23:55–00:40: quality 0.8M45 00:40–00:55: quality 0.7M45 00:55–01:10: quality 0.6M45 01:10–01:20: quality 0.5M45 01:20–01:30: quality 0.4observe M45 20:55–22:05NGC 7000NGC 7000 18:00–18:35: quality 0.1NGC 7000 18:35–19:05: quality 0.4NGC 7000 19:05–19:15: quality 0.7NGC 7000 19:15–19:30: quality 0.6NGC 7000 19:30–19:50: quality 0.5NGC 7000 19:50–20:00: quality 0.4NGC 7000 06:10–06:25: quality 0.2NGC 7000 06:25–06:40: quality 0.3NGC 7000 06:40–07:10: quality 0.1observe NGC 7000 18:35–19:45V1057 CygV1057 Cyg 18:00–18:35: quality 0.1V1057 Cyg 18:35–19:05: quality 0.4V1057 Cyg 19:05–19:15: quality 0.7V1057 Cyg 19:15–19:30: quality 0.6V1057 Cyg 19:30–19:50: quality 0.5V1057 Cyg 19:50–20:00: quality 0.4V1057 Cyg 06:10–06:30: quality 0.2V1057 Cyg 06:30–06:40: quality 0.3V1057 Cyg 06:40–07:10: quality 0.1M33M33 18:00–18:35: quality 0.2M33 18:35–19:05: quality 0.5M33 19:05–20:40: quality 1.0M33 20:40–22:00: quality 0.9M33 22:00–22:50: quality 0.8M33 22:50–23:05: quality 0.7M33 23:05–23:20: quality 0.6M33 23:20–23:30: quality 0.5M33 23:30–23:40: quality 0.4observe M33 19:45–20:55scheduleNGC 7000M33M45M31M4218:0020:0022:0000:0002:0004:0006:00

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
18:35–19:45 NGC 7000 1.17 0.51
19:45–20:55 M33 1.17 0.97
20:55–22:05 M45 1.17 1.0
22:05–23:15 M31 1.17 0.69
23:15–01:30 M42 2.25 0.72
01:30–07:40 — nothing worth pointing at — 6.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 19:05–22:55 (good) 89.5° at 16:50 90.2° 1.17
M42 Great Orion Nebula 89 unknown 19:05–01:00 (good) 42.9° at 21:40 135.7° 2.25
M45 Seven Sisters 100 unknown 19:05–01:00 (good) 72.5° at 19:50 121.8° 1.17
NGC 7000 North America Nebula 16 unknown 19:05–19:25 (good) 87.2° at 13:05 66.7° 1.17
V1057 Cyg 16 unknown 19:05–19:25 (good) 87.3° at 13:05 66.6° 0.0
M33 Triangulum Pinwheel 100 unknown 19:05–23:10 (good) 79.1° at 17:40 95.2° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-01-25"

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"}.