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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 Sunday, 08 March 2026 · astronomical night 19:51 → 05:11 (9.32 h) · Moon 72% (waning gibbous) · weather: ERA5 history

M31M31 18:50–19:20: quality 0.1M31 19:20–19:55: quality 0.2M31 19:55–20:00: quality 0.3M31 20:00–20:20: quality 0.4M31 20:20–20:40: quality 0.3M42M42 18:50–19:20: quality 0.1M42 19:20–19:55: quality 0.2M42 19:55–20:00: quality 0.4M42 20:00–21:00: quality 0.6M42 21:00–21:25: quality 0.7M42 21:25–21:55: quality 0.6M42 21:55–22:00: quality 0.5observe M42 21:05–22:00M45M45 18:50–19:20: quality 0.1M45 19:20–19:55: quality 0.2M45 19:55–20:00: quality 0.5M45 20:00–21:00: quality 0.6M45 21:00–21:35: quality 0.7M45 21:35–22:00: quality 0.6observe M45 20:30–21:05NGC 7000NGC 7000 05:00–05:15: quality 0.6NGC 7000 05:15–05:45: quality 0.3NGC 7000 05:45–06:20: quality 0.1observe NGC 7000 05:00–05:35V1057 CygV1057 Cyg 05:00–05:15: quality 0.6V1057 Cyg 05:15–05:45: quality 0.3V1057 Cyg 05:45–06:20: quality 0.1observe V1057 Cyg 05:35–05:45M33M33 18:50–19:20: quality 0.1M33 19:20–19:55: quality 0.2M33 19:55–20:00: quality 0.4M33 20:00–20:15: quality 0.5M33 20:15–20:35: quality 0.4M33 20:35–20:50: quality 0.3observe M33 19:55–20:30scheduleM4220:0022:0000:0002:0004:0006:00

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
18:15–19:55 — nothing worth pointing at — 1.67
19:55–20:30 M33 0.58 0.44
20:30–21:05 M45 0.58 0.6
21:05–22:00 M42 0.92 0.63
22:00–05:00 — nothing worth pointing at — 7.0
05:00–05:35 NGC 7000 0.58 0.45
05:35–05:45 V1057 Cyg 0.17 0.33
05:45–06:45 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 12 7 19:55–20:35 (marginal) 89.7° at 14:00 144.1° 0.0
M42 Great Orion Nebula 52 30 21:00–21:45 (good) 42.9° at 18:50 134.7° 0.92
M45 Seven Sisters 59 35 21:00–21:55 (good) 72.5° at 17:05 171.7° 0.58
NGC 7000 North America Nebula 24 7 05:00–05:15 (good) 87.2° at 10:15 103.8° 0.58
V1057 Cyg 24 7 05:00–05:15 (good) 87.3° at 10:15 103.8° 0.17
M33 Triangulum Pinwheel 17 10 19:55–20:45 (marginal) 79.1° at 14:50 157.1° 0.58

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-03-08"

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"}.