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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 Monday, 07 February 2028 · astronomical night 19:17 → 05:51 (10.57 h) · Moon 90% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:15–18:50: quality 0.1M31 18:50–19:20: quality 0.3M31 19:20–19:50: quality 0.6M31 19:50–21:35: quality 0.5M31 21:35–22:05: quality 0.4M31 22:05–22:35: quality 0.3M31 22:35–22:40: quality 0.2observe M31 18:50–19:00observe M31 19:20–20:10M42M42 18:15–18:50: quality 0.1M42 18:50–19:20: quality 0.2M42 19:20–23:50: quality 0.3M42 23:50–00:40: quality 0.2M45M45 18:15–18:50: quality 0.1M45 18:50–19:20: quality 0.2M45 19:20–21:45: quality 0.4M45 21:45–00:10: quality 0.3M45 00:10–00:40: quality 0.2observe M45 21:10–22:10observe M45 22:25–23:50NGC 7000NGC 7000 18:15–18:50: quality 0.1NGC 7000 18:50–19:10: quality 0.2NGC 7000 05:20–05:40: quality 0.4NGC 7000 05:40–05:45: quality 0.5NGC 7000 05:45–05:55: quality 0.6NGC 7000 05:55–06:10: quality 0.3NGC 7000 06:10–06:25: quality 0.4NGC 7000 06:25–07:00: quality 0.1observe NGC 7000 05:20–06:20V1057 CygV1057 Cyg 18:15–18:50: quality 0.1V1057 Cyg 18:50–19:05: quality 0.2V1057 Cyg 05:20–05:40: quality 0.4V1057 Cyg 05:40–05:45: quality 0.5V1057 Cyg 05:45–05:55: quality 0.6V1057 Cyg 05:55–06:10: quality 0.3V1057 Cyg 06:10–06:25: quality 0.4V1057 Cyg 06:25–07:00: quality 0.1observe V1057 Cyg 06:20–06:25M33M33 18:15–18:50: quality 0.1M33 18:50–19:20: quality 0.3M33 19:20–19:35: quality 0.6M33 19:35–21:25: quality 0.5M33 21:25–22:15: quality 0.4M33 22:15–22:40: quality 0.3M33 22:40–22:50: quality 0.2observe M33 20:10–21:10observe M33 22:10–22:25scheduleM31M33M45M45NGC 700018:0020:0022:0000:0002:0004:0006:00

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
17:40–18:50 — nothing worth pointing at — 1.17
18:50–19:00 M31 0.17 0.3
19:00–19:20 — nothing worth pointing at — 0.33
19:20–20:10 M31 0.83 0.55
20:10–21:10 M33 1.0 0.49
21:10–22:10 M45 1.0 0.35
22:10–22:25 M33 0.25 0.33
22:25–23:50 M45 1.42 0.32
23:50–05:20 — nothing worth pointing at — 5.5
05:20–06:20 NGC 7000 1.0 0.41
06:20–06:25 V1057 Cyg 0.08 0.39
06:25–07:30 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 25 unknown 19:20–22:20 (marginal) 89.6° at 15:55 75.0° 1.0
M42 Great Orion Nebula 13 unknown 19:20–20:55 (marginal) 42.9° at 20:50 35.2° 0.0
M45 Seven Sisters 20 unknown 19:20–23:50 (marginal) 72.5° at 19:00 41.3° 2.42
NGC 7000 North America Nebula 9 unknown 05:20–06:25 (marginal) 87.2° at 12:15 104.7° 1.0
V1057 Cyg 9 unknown 05:20–06:25 (marginal) 87.3° at 12:15 104.8° 0.08
M33 Triangulum Pinwheel 25 unknown 19:20–22:25 (marginal) 79.1° at 16:45 68.5° 1.25

Left out


💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-07"

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"}.