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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, 04 February 2028 · astronomical night 19:14 → 05:54 (10.67 h) · Moon 62% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:10–18:45: quality 0.1M31 18:45–19:15: quality 0.3M31 19:15–21:55: quality 0.5M31 21:55–22:20: quality 0.4M31 22:20–22:50: quality 0.3observe M31 19:15–20:20M42M42 18:10–18:45: quality 0.1M42 18:45–19:15: quality 0.2M42 19:15–00:10: quality 0.5M42 00:10–00:35: quality 0.4M42 00:35–00:50: quality 0.3observe M42 22:30–00:45M45M45 18:10–18:45: quality 0.1M45 18:45–19:15: quality 0.3M45 19:15–00:10: quality 0.5M45 00:10–00:30: quality 0.4M45 00:30–00:50: quality 0.3observe M45 21:25–22:30NGC 7000NGC 7000 18:10–18:45: quality 0.1NGC 7000 18:45–19:15: quality 0.2NGC 7000 19:15–19:20: quality 0.3NGC 7000 05:30–05:40: quality 0.4NGC 7000 05:40–05:55: quality 0.5NGC 7000 05:55–06:20: quality 0.3NGC 7000 06:20–06:30: quality 0.4NGC 7000 06:30–07:05: quality 0.1observe NGC 7000 05:30–05:55observe NGC 7000 06:05–06:30V1057 CygV1057 Cyg 18:10–18:45: quality 0.1V1057 Cyg 18:45–19:15: quality 0.2V1057 Cyg 19:15–19:20: quality 0.3V1057 Cyg 05:30–05:40: quality 0.4V1057 Cyg 05:40–05:55: quality 0.5V1057 Cyg 05:55–06:25: quality 0.3V1057 Cyg 06:25–06:30: quality 0.4V1057 Cyg 06:30–07:05: quality 0.1M33M33 18:10–18:45: quality 0.1M33 18:45–19:15: quality 0.3M33 19:15–22:05: quality 0.5M33 22:05–22:30: quality 0.4M33 22:30–23:00: quality 0.3observe M33 20:20–21:25scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:35–19:15 — nothing worth pointing at — 1.67
19:15–20:20 M31 1.08 0.53
20:20–21:25 M33 1.08 0.48
21:25–22:30 M45 1.08 0.53
22:30–00:45 M42 2.25 0.48
00:45–05:30 — nothing worth pointing at — 4.75
05:30–05:55 NGC 7000 0.42 0.47
05:55–06:05 — nothing worth pointing at — 0.17
06:05–06:30 NGC 7000 0.42 0.34
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 26 unknown 19:15–22:35 (marginal) 89.6° at 16:10 40.9° 1.08
M42 Great Orion Nebula 39 unknown 19:15–00:45 (marginal) 42.9° at 21:00 40.4° 2.25
M45 Seven Sisters 41 unknown 19:15–00:45 (marginal) 72.5° at 19:10 0.7° 1.08
NGC 7000 North America Nebula 8 unknown 05:30–05:55 (marginal) 87.3° at 12:25 80.6° 0.83
V1057 Cyg 8 unknown 05:30–05:55 (marginal) 87.3° at 12:25 80.6° 0.0
M33 Triangulum Pinwheel 24 unknown 19:15–22:45 (marginal) 79.1° at 17:00 29.3° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-04"

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"}.