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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 Saturday, 27 March 2027 · astronomical night 20:15 → 05:37 (8.37 h) · Moon 70% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

3C 2733C 273 20:15–20:20: quality 0.23C 273 20:20–20:25: quality 0.43C 273 20:25–20:35: quality 0.53C 273 20:35–20:50: quality 0.63C 273 20:50–21:05: quality 0.73C 273 21:05–22:00: quality 0.83C 273 22:00–00:45: quality 0.93C 273 00:45–01:10: quality 0.83C 273 01:10–04:10: quality 0.73C 273 04:10–05:05: quality 0.63C 273 05:05–05:25: quality 0.53C 273 05:25–05:40: quality 0.43C 273 05:40–05:50: quality 0.2observe 3C 273 20:20–05:40schedule3C 27320:0022:0000:0002:0004:0006:00

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
18:40–20:20 — nothing worth pointing at — 1.67
20:20–05:40 3C 273 8.33 0.75
05:40–07:15 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
3C 273 93 unknown 20:45–04:55 (good) 50.2° at 00:30 68.5° 8.33

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-03-27"

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"}.