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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.

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

Night of Saturday, 01 May 2027 · astronomical night 22:06 → 04:29 (6.38 h) · Moon 22% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 04:50–05:10: quality 0.2M31 05:10–05:50: quality 0.1M42M45NGC 7000NGC 7000 00:50–01:00: quality 0.4NGC 7000 01:00–01:20: quality 0.5NGC 7000 01:20–01:35: quality 0.6NGC 7000 01:35–01:50: quality 0.7NGC 7000 01:50–02:45: quality 0.8NGC 7000 02:45–04:30: quality 0.9NGC 7000 04:30–04:35: quality 0.4NGC 7000 04:35–05:10: quality 0.5NGC 7000 05:10–05:50: quality 0.1observe NGC 7000 00:50–03:05V1057 CygV1057 Cyg 00:50–01:00: quality 0.4V1057 Cyg 01:00–01:20: quality 0.5V1057 Cyg 01:20–01:35: quality 0.6V1057 Cyg 01:35–01:50: quality 0.7V1057 Cyg 01:50–02:45: quality 0.8V1057 Cyg 02:45–04:30: quality 0.9V1057 Cyg 04:30–04:35: quality 0.4V1057 Cyg 04:35–05:10: quality 0.5V1057 Cyg 05:10–05:50: quality 0.1observe V1057 Cyg 03:05–05:10M33scheduleNGC 7000V1057 Cyg22:0000:0002:0004:0006:00

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
20:15–00:50 — nothing worth pointing at — 4.58
00:50–03:05 NGC 7000 2.25 0.71
03:05–05:10 V1057 Cyg 2.08 0.76
05:10–06:20 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 1 unknown — 89.7° at 11:25 50.2° 0.0
M42 Great Orion Nebula 0 unknown — 42.9° at 16:20 97.7° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 14:30 74.1° 0.0
NGC 7000 North America Nebula 77 unknown 01:25–04:30 (good) 87.2° at 07:40 55.3° 2.25
V1057 Cyg 77 unknown 01:25–04:30 (good) 87.3° at 07:40 55.2° 2.08
M33 Triangulum Pinwheel 0 unknown — 79.1° at 12:20 49.6° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-05-01"

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"}.