← single target

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.

Try: an autumn deep-sky night  ·  ← previous night · next night →

Night of Thursday, 23 March 2028 · astronomical night 20:10 → 04:43 (8.54 h) · Moon 5% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

3C 2733C 273 20:30–20:35: quality 0.43C 273 20:35–20:50: quality 0.53C 273 20:50–21:05: quality 0.63C 273 21:05–21:20: quality 0.73C 273 21:20–22:15: quality 0.83C 273 22:15–03:20: quality 0.93C 273 03:20–04:15: quality 0.83C 273 04:15–04:30: quality 0.73C 273 04:30–04:45: quality 0.63C 273 04:45–04:50: quality 0.33C 273 04:50–05:05: quality 0.2observe 3C 273 20:30–04:45schedule3C 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
18:35–20:30 — nothing worth pointing at — 1.92
20:30–04:45 3C 273 8.25 0.84
04:45–06:20 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
3C 273 93 unknown 20:55–04:35 (good) 50.2° at 00:45 152.1° 8.25

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-03-23"

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"}.