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 Saturday, 27 June 2026 · astronomical night 23:10 → 03:38 (4.47 h) · Moon 96% (waxing gibbous) · weather: ERA5 history

M31M31 01:05–01:25: quality 0.4M31 01:25–01:40: quality 0.5M31 01:40–03:00: quality 0.6observe M31 01:15–02:35M42M45NGC 7000NGC 7000 21:35–22:20: quality 0.1NGC 7000 22:20–23:15: quality 0.3NGC 7000 23:15–00:00: quality 0.6NGC 7000 00:00–01:50: quality 0.7NGC 7000 01:50–02:00: quality 0.8NGC 7000 02:00–02:15: quality 0.6NGC 7000 02:15–03:00: quality 0.7observe NGC 7000 23:15–00:15V1057 CygV1057 Cyg 21:35–22:20: quality 0.1V1057 Cyg 22:20–23:15: quality 0.3V1057 Cyg 23:15–00:00: quality 0.6V1057 Cyg 00:00–01:50: quality 0.7V1057 Cyg 01:50–02:00: quality 0.8V1057 Cyg 02:00–02:15: quality 0.6V1057 Cyg 02:15–03:00: quality 0.7observe V1057 Cyg 00:15–01:15M33M33 02:35–02:45: quality 0.3M33 02:45–03:00: quality 0.4observe M33 02:35–03:00scheduleNGC 7000V1057 CygM3122:0000:0002:0004:00

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
20:55–23:15 — nothing worth pointing at — 2.33
23:15–00:15 NGC 7000 1.0 0.63
00:15–01:15 V1057 Cyg 1.0 0.71
01:15–02:35 M31 1.33 0.56
02:35–03:00 M33 0.42 0.36
03:00–05:50 — nothing worth pointing at — 2.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 47 22 02:10–03:00 (good) 89.7° at 07:40 128.8° 1.33
M42 Great Orion Nebula 0 0 — 42.9° at 12:35 145.2° 0.0
M45 Seven Sisters 0 0 — 72.5° at 10:45 166.1° 0.0
NGC 7000 North America Nebula 82 55 23:20–03:00 (good) 87.3° at 03:55 91.9° 1.0
V1057 Cyg 82 55 23:20–03:00 (good) 87.3° at 03:55 91.9° 1.0
M33 Triangulum Pinwheel 20 3 02:35–03:00 (marginal) 79.1° at 08:30 138.0° 0.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-06-27"

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"}.