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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, 09 February 2028 · astronomical night 19:20 → 05:49 (10.49 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:15–18:50: quality 0.1M31 18:50–19:25: quality 0.4M31 19:25–20:35: quality 0.7M31 20:35–21:35: quality 0.6M31 21:35–21:55: quality 0.5M31 21:55–22:15: quality 0.4M31 22:15–22:30: quality 0.3observe M31 18:50–19:55M42M42 18:15–18:50: quality 0.1M42 18:50–19:25: quality 0.2M42 19:25–19:45: quality 0.5M42 19:45–22:35: quality 0.4M42 22:35–23:55: quality 0.3M42 23:55–00:30: quality 0.2observe M42 22:05–23:30M45M45 18:15–18:50: quality 0.1M45 18:50–19:25: quality 0.3M45 19:25–21:10: quality 0.6M45 21:10–22:55: quality 0.5M45 22:55–23:55: quality 0.4M45 23:55–00:20: quality 0.3M45 00:20–00:30: quality 0.2observe M45 21:00–22:05observe M45 23:30–00:05NGC 7000NGC 7000 18:15–18:50: quality 0.1NGC 7000 18:50–19:00: quality 0.2NGC 7000 05:10–05:30: quality 0.4NGC 7000 05:30–05:50: quality 0.5NGC 7000 05:50–06:15: quality 0.3NGC 7000 06:15–06:25: quality 0.4NGC 7000 06:25–06:55: quality 0.1observe NGC 7000 05:10–05:50observe NGC 7000 05:55–06:25V1057 CygV1057 Cyg 18:15–18:50: quality 0.1V1057 Cyg 18:50–19:00: quality 0.2V1057 Cyg 05:10–05:30: quality 0.4V1057 Cyg 05:30–05:50: quality 0.5V1057 Cyg 05:50–06:15: quality 0.3V1057 Cyg 06:15–06:25: quality 0.4V1057 Cyg 06:25–06:55: quality 0.1M33M33 18:15–18:50: quality 0.1M33 18:50–19:25: quality 0.4M33 19:25–20:35: quality 0.7M33 20:35–21:50: quality 0.6M33 21:50–22:05: quality 0.5M33 22:05–22:25: quality 0.4M33 22:25–22:40: quality 0.3observe M33 19:55–21:00scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:45–18:50 — nothing worth pointing at — 1.08
18:50–19:55 M31 1.08 0.53
19:55–21:00 M33 1.08 0.66
21:00–22:05 M45 1.08 0.53
22:05–23:30 M42 1.42 0.34
23:30–00:05 M45 0.58 0.37
00:05–05:10 — nothing worth pointing at — 5.08
05:10–05:50 NGC 7000 0.67 0.46
05:50–05:55 — nothing worth pointing at — 0.08
05:55–06:25 NGC 7000 0.5 0.34
06:25–07:25 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 38 unknown 19:25–21:20 (good) 89.6° at 15:50 101.4° 1.08
M42 Great Orion Nebula 23 unknown 19:25–23:35 (marginal) 42.9° at 20:40 53.5° 1.42
M45 Seven Sisters 43 unknown 19:25–20:05 (good) 72.5° at 18:50 71.3° 1.67
NGC 7000 North America Nebula 9 unknown 05:10–05:50 (marginal) 87.3° at 12:05 119.0° 1.17
V1057 Cyg 9 unknown 05:10–05:50 (marginal) 87.3° at 12:05 119.0° 0.0
M33 Triangulum Pinwheel 41 unknown 19:25–21:20 (good) 79.1° at 16:40 97.6° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-09"

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"}.