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 Monday, 18 August 2025 · astronomical night 22:00 → 04:49 (6.83 h) · Moon 21% (waning crescent) · weather: ERA5 history

M31M31 21:40–21:55: quality 0.1M31 21:55–22:00: quality 0.2M31 22:00–22:05: quality 0.1M31 22:05–22:40: quality 0.2M31 22:40–23:00: quality 0.3M31 23:00–00:00: quality 0.4M31 00:00–00:10: quality 0.5M31 00:10–01:00: quality 0.6M31 01:00–01:55: quality 0.7M31 01:55–02:00: quality 0.6M31 02:00–03:00: quality 0.4M31 03:00–04:50: quality 0.2M31 04:50–05:00: quality 0.1M31 06:00–06:05: quality 0.1observe M31 00:05–01:05M42M45M45 01:45–02:00: quality 0.3M45 02:00–02:30: quality 0.2M45 02:30–03:00: quality 0.3M45 03:00–04:50: quality 0.2M45 04:50–05:00: quality 0.1M45 06:00–06:05: quality 0.1NGC 7000NGC 7000 21:00–21:25: quality 0.1NGC 7000 21:25–22:00: quality 0.3NGC 7000 22:00–22:05: quality 0.2NGC 7000 22:05–23:00: quality 0.3NGC 7000 23:00–00:00: quality 0.5NGC 7000 00:00–01:00: quality 0.6NGC 7000 01:00–02:00: quality 0.7NGC 7000 02:00–03:00: quality 0.4NGC 7000 03:00–04:50: quality 0.2NGC 7000 04:50–05:00: quality 0.1NGC 7000 06:00–06:05: quality 0.1observe NGC 7000 22:05–23:05V1057 CygV1057 Cyg 21:00–21:25: quality 0.1V1057 Cyg 21:25–22:00: quality 0.3V1057 Cyg 22:00–22:05: quality 0.2V1057 Cyg 22:05–23:00: quality 0.3V1057 Cyg 23:00–00:00: quality 0.5V1057 Cyg 00:00–01:00: quality 0.6V1057 Cyg 01:00–02:00: quality 0.7V1057 Cyg 02:00–03:00: quality 0.4V1057 Cyg 03:00–04:50: quality 0.2V1057 Cyg 04:50–05:00: quality 0.1V1057 Cyg 06:00–06:05: quality 0.1observe V1057 Cyg 23:05–00:05M33M33 23:10–23:25: quality 0.2M33 23:25–23:55: quality 0.3M33 23:55–00:00: quality 0.4M33 00:00–01:00: quality 0.5M33 01:00–02:00: quality 0.6M33 02:00–02:45: quality 0.3M33 02:45–03:00: quality 0.4M33 03:00–04:50: quality 0.2M33 04:50–05:00: quality 0.1M33 06:00–06:05: quality 0.1observe M33 01:05–03:00scheduleNGC 7000V1057 CygM31M3322:0000:0002:0004:0006:00

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
20:15–22:05 — nothing worth pointing at — 1.83
22:05–23:05 NGC 7000 1.0 0.34
23:05–00:05 V1057 Cyg 1.0 0.51
00:05–01:05 M31 1.0 0.57
01:05–03:00 M33 1.92 0.48
03:00–06:35 — nothing worth pointing at — 3.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 41 01:00–02:00 (good) 89.7° at 04:15 65.6° 1.0
M42 Great Orion Nebula 0 0 — 42.9° at 09:05 34.9° 0.0
M45 Seven Sisters 54 14 01:50–02:00 (marginal) 72.5° at 07:20 32.1° 0.0
NGC 7000 North America Nebula 100 42 00:00–02:00 (good) 87.3° at 00:30 97.5° 1.0
V1057 Cyg 100 42 00:00–02:00 (good) 87.3° at 00:30 97.5° 1.0
M33 Triangulum Pinwheel 93 38 01:05–02:00 (good) 79.1° at 05:05 58.8° 1.92

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2025-08-18"

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"}.