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, 02 January 2026 · astronomical night 18:42 → 06:08 (11.44 h) · Moon 100% (full moon) · weather: ERA5 history

M31M31 18:00–18:10: quality 0.1M31 18:10–18:45: quality 0.3M31 18:45–19:35: quality 0.6M31 19:35–21:10: quality 0.5M31 21:10–22:50: quality 0.4M31 22:50–23:00: quality 0.3M31 23:00–00:00: quality 0.2M31 00:00–00:20: quality 0.3M31 00:20–01:00: quality 0.2observe M31 20:10–21:10observe M31 00:00–00:05M42M42 19:20–20:20: quality 0.2M42 20:20–21:00: quality 0.3M42 21:00–23:00: quality 0.2M42 23:00–00:00: quality 0.1M42 00:00–01:00: quality 0.2M42 01:00–02:00: quality 0.1M42 02:00–02:15: quality 0.2M42 02:15–03:00: quality 0.1M45M45 18:00–18:10: quality 0.1M45 18:10–18:45: quality 0.2M45 18:45–20:00: quality 0.4M45 20:00–21:50: quality 0.3M45 21:50–23:00: quality 0.2M45 23:00–00:00: quality 0.1M45 00:00–01:00: quality 0.2M45 01:00–02:00: quality 0.1M45 02:00–02:20: quality 0.2M45 02:20–02:55: quality 0.1NGC 7000NGC 7000 17:35–18:10: quality 0.1NGC 7000 18:10–18:45: quality 0.3NGC 7000 18:45–18:50: quality 0.7NGC 7000 18:50–20:20: quality 0.6NGC 7000 20:20–20:45: quality 0.5NGC 7000 20:45–21:00: quality 0.4NGC 7000 21:00–21:25: quality 0.3observe NGC 7000 18:10–19:10V1057 CygV1057 Cyg 17:35–18:10: quality 0.1V1057 Cyg 18:10–18:45: quality 0.3V1057 Cyg 18:45–18:50: quality 0.7V1057 Cyg 18:50–20:20: quality 0.6V1057 Cyg 20:20–20:45: quality 0.5V1057 Cyg 20:45–21:00: quality 0.4V1057 Cyg 21:00–21:25: quality 0.3observe V1057 Cyg 19:10–20:10M33M33 18:00–18:10: quality 0.1M33 18:10–18:45: quality 0.3M33 18:45–21:00: quality 0.5M33 21:00–22:20: quality 0.4M33 22:20–23:00: quality 0.3M33 23:00–00:00: quality 0.2M33 00:00–00:30: quality 0.3M33 00:30–01:00: quality 0.2M33 01:00–01:10: quality 0.1observe M33 21:10–23:00scheduleNGC 7000V1057 CygM31M3318:0020:0022:0000:0002:0004:0006:00

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
17:00–18:10 — nothing worth pointing at — 1.17
18:10–19:10 NGC 7000 1.0 0.46
19:10–20:10 V1057 Cyg 1.0 0.6
20:10–21:10 M31 1.0 0.51
21:10–23:00 M33 1.83 0.37
23:00–00:00 — nothing worth pointing at — 1.0
00:00–00:05 M31 0.08 0.3
00:05–07:50 — nothing worth pointing at — 7.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 49 41 18:45–23:00 (marginal) 89.7° at 18:15 69.1° 1.08
M42 Great Orion Nebula 12 9 — 42.9° at 23:10 35.5° 0.0
M45 Seven Sisters 26 21 18:45–21:00 (marginal) 72.5° at 21:20 35.9° 0.0
NGC 7000 North America Nebula 31 29 18:45–19:40 (good) 87.2° at 14:30 99.8° 1.0
V1057 Cyg 31 29 18:45–19:40 (good) 87.3° at 14:30 99.8° 1.0
M33 Triangulum Pinwheel 44 36 18:45–23:00 (marginal) 79.1° at 19:05 62.6° 1.83

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-01-02"

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"}.