IT Consulting

← 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 Friday, 05 September 2025 · astronomical night 21:24 → 05:15 (7.85 h) · Moon 96% (waxing gibbous) · weather: ERA5 history

M31M31 04:00–04:55: quality 0.5M31 04:55–05:00: quality 0.7M31 05:00–05:20: quality 0.4M31 05:20–05:55: quality 0.2M31 05:55–06:00: quality 0.1observe M31 05:10–05:20M42M42 04:10–04:35: quality 0.3M42 04:35–04:55: quality 0.4M42 04:55–05:00: quality 0.5M42 05:00–05:15: quality 0.3M42 05:15–05:20: quality 0.4M42 05:20–05:55: quality 0.2M42 05:55–06:00: quality 0.1M45M45 04:00–04:55: quality 0.6M45 04:55–05:00: quality 0.7M45 05:00–05:20: quality 0.4M45 05:20–05:55: quality 0.2M45 05:55–06:00: quality 0.1observe M45 04:00–04:35NGC 7000NGC 7000 04:00–04:55: quality 0.4NGC 7000 04:55–05:00: quality 0.5NGC 7000 05:00–05:10: quality 0.4NGC 7000 05:10–05:20: quality 0.3NGC 7000 05:20–05:25: quality 0.2NGC 7000 05:25–05:55: quality 0.1V1057 CygV1057 Cyg 04:00–04:55: quality 0.4V1057 Cyg 04:55–05:00: quality 0.5V1057 Cyg 05:00–05:10: quality 0.4V1057 Cyg 05:10–05:20: quality 0.3V1057 Cyg 05:20–05:25: quality 0.2V1057 Cyg 05:25–05:55: quality 0.1M33M33 04:00–04:55: quality 0.5M33 04:55–05:00: quality 0.7M33 05:00–05:20: quality 0.4M33 05:20–05:55: quality 0.2M33 05:55–06:00: quality 0.1observe M33 04:35–05:10schedule20:0022:0000:0002:0004:0006:00

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
19:45–04:00 — nothing worth pointing at — 8.25
04:00–04:35 M45 0.58 0.57
04:35–05:10 M33 0.58 0.52
05:10–05:20 M31 0.17 0.44
05:20–06:55 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 14 04:55–05:00 (good) 89.6° at 03:05 73.2° 0.17
M42 Great Orion Nebula 20 11 04:25–05:20 (marginal) 42.9° at 07:55 117.2° 0.0
M45 Seven Sisters 95 22 04:55–05:00 (good) 72.5° at 06:05 100.0° 0.58
NGC 7000 North America Nebula 81 9 04:00–05:20 (marginal) 87.3° at 23:20 62.1° 0.0
V1057 Cyg 81 9 04:00–05:20 (marginal) 87.3° at 23:20 62.0° 0.0
M33 Triangulum Pinwheel 100 16 04:55–05:00 (good) 79.1° at 03:55 75.2° 0.58

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2025-09-05"

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"}.