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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 Wednesday, 02 February 2028 · astronomical night 19:12 → 05:56 (10.74 h) · Moon 41% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:10–18:40: quality 0.1M31 18:40–19:15: quality 0.3M31 19:15–20:20: quality 0.7M31 20:20–22:05: quality 0.6M31 22:05–22:30: quality 0.5M31 22:30–22:50: quality 0.4M31 22:50–23:00: quality 0.3observe M31 18:40–19:50M42M42 18:10–18:40: quality 0.1M42 18:40–19:15: quality 0.3M42 19:15–00:00: quality 0.7M42 00:00–00:20: quality 0.6M42 00:20–00:30: quality 0.5M42 00:30–00:35: quality 0.6M42 00:35–00:50: quality 0.5M42 00:50–01:00: quality 0.4observe M42 22:10–01:00M45M45 18:10–18:40: quality 0.1M45 18:40–19:15: quality 0.3M45 19:15–00:05: quality 0.7M45 00:05–00:20: quality 0.6M45 00:20–00:30: quality 0.5M45 00:30–00:35: quality 0.6M45 00:35–00:50: quality 0.5M45 00:50–01:00: quality 0.4observe M45 21:00–22:10NGC 7000NGC 7000 18:10–18:40: quality 0.1NGC 7000 18:40–18:45: quality 0.3NGC 7000 18:45–19:15: quality 0.2NGC 7000 19:15–19:20: quality 0.4NGC 7000 19:20–19:25: quality 0.3NGC 7000 05:40–05:45: quality 0.4NGC 7000 05:45–06:00: quality 0.5NGC 7000 06:00–06:30: quality 0.3NGC 7000 06:30–07:05: quality 0.1observe NGC 7000 05:40–06:00observe NGC 7000 06:15–06:30V1057 CygV1057 Cyg 18:10–18:40: quality 0.1V1057 Cyg 18:40–18:45: quality 0.3V1057 Cyg 18:45–19:15: quality 0.2V1057 Cyg 19:15–19:20: quality 0.4V1057 Cyg 19:20–19:25: quality 0.3V1057 Cyg 05:40–05:50: quality 0.4V1057 Cyg 05:50–06:00: quality 0.5V1057 Cyg 06:00–06:30: quality 0.3V1057 Cyg 06:30–07:05: quality 0.1M33M33 18:10–18:40: quality 0.1M33 18:40–19:15: quality 0.3M33 19:15–21:05: quality 0.7M33 21:05–22:25: quality 0.6M33 22:25–22:45: quality 0.5M33 22:45–23:00: quality 0.4M33 23:00–23:10: quality 0.3observe M33 19:50–21:00scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:35–18:40 — nothing worth pointing at — 1.08
18:40–19:50 M31 1.17 0.51
19:50–21:00 M33 1.17 0.67
21:00–22:10 M45 1.17 0.73
22:10–01:00 M42 2.83 0.65
01:00–05:40 — nothing worth pointing at — 4.67
05:40–06:00 NGC 7000 0.33 0.47
06:00–06:15 — nothing worth pointing at — 0.25
06:15–06:30 NGC 7000 0.25 0.33
06:30–07:35 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 42 unknown 19:15–21:55 (good) 89.7° at 16:15 28.6° 1.17
M42 Great Orion Nebula 72 unknown 19:15–00:10 (good) 42.9° at 21:10 58.4° 2.83
M45 Seven Sisters 74 unknown 19:15–00:15 (good) 72.5° at 19:20 26.1° 1.17
NGC 7000 North America Nebula 8 unknown 05:40–06:00 (marginal) 87.2° at 12:30 67.0° 0.58
V1057 Cyg 8 unknown 05:40–06:00 (marginal) 87.3° at 12:30 67.0° 0.0
M33 Triangulum Pinwheel 47 unknown 19:15–22:15 (good) 79.1° at 17:05 14.1° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-02"

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"}.