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 Thursday, 21 January 2027 · astronomical night 18:59 → 06:04 (11.09 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:55–18:30: quality 0.1M31 18:30–19:00: quality 0.4M31 19:00–20:05: quality 0.7M31 20:05–21:35: quality 0.6M31 21:35–22:50: quality 0.5M31 22:50–23:15: quality 0.4M31 23:15–23:40: quality 0.3M31 23:40–23:45: quality 0.2observe M31 20:15–21:20M42M42 18:30–18:40: quality 0.1M42 18:40–19:00: quality 0.2M42 19:00–20:15: quality 0.4M42 20:15–00:40: quality 0.3M42 00:40–01:35: quality 0.2M42 01:35–01:45: quality 0.1M45M45 17:55–18:30: quality 0.1M45 18:30–19:00: quality 0.3M45 19:00–20:55: quality 0.5M45 20:55–23:30: quality 0.4M45 23:30–01:10: quality 0.3M45 01:10–01:45: quality 0.2observe M45 22:25–00:55NGC 7000NGC 7000 17:55–18:30: quality 0.1NGC 7000 18:30–19:00: quality 0.3NGC 7000 19:00–19:10: quality 0.7NGC 7000 19:10–19:25: quality 0.6NGC 7000 19:25–19:45: quality 0.5NGC 7000 19:45–20:10: quality 0.4NGC 7000 20:10–20:15: quality 0.3NGC 7000 06:25–06:40: quality 0.2NGC 7000 06:40–07:15: quality 0.1observe NGC 7000 18:30–19:35V1057 CygV1057 Cyg 17:55–18:30: quality 0.1V1057 Cyg 18:30–19:00: quality 0.3V1057 Cyg 19:00–19:05: quality 0.7V1057 Cyg 19:05–19:25: quality 0.6V1057 Cyg 19:25–19:45: quality 0.5V1057 Cyg 19:45–20:05: quality 0.4V1057 Cyg 20:05–20:15: quality 0.3V1057 Cyg 06:25–06:40: quality 0.2V1057 Cyg 06:40–07:15: quality 0.1observe V1057 Cyg 19:35–20:15M33M33 17:55–18:30: quality 0.1M33 18:30–19:00: quality 0.3M33 19:00–19:40: quality 0.7M33 19:40–21:25: quality 0.6M33 21:25–23:00: quality 0.5M33 23:00–23:25: quality 0.4M33 23:25–23:50: quality 0.3M33 23:50–23:55: quality 0.2observe M33 21:20–22:25scheduleNGC 7000M31M33M4518:0020:0022:0000:0002:0004:0006:00

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
17:20–18:30 — nothing worth pointing at — 1.17
18:30–19:35 NGC 7000 1.08 0.48
19:35–20:15 V1057 Cyg 0.67 0.41
20:15–21:20 M31 1.08 0.6
21:20–22:25 M33 1.08 0.52
22:25–00:55 M45 2.5 0.35
00:55–07:45 — nothing worth pointing at — 6.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 49 unknown 19:00–20:45 (good) 89.5° at 17:00 85.1° 1.08
M42 Great Orion Nebula 19 unknown 19:00–22:05 (marginal) 42.9° at 21:55 42.7° 0.0
M45 Seven Sisters 38 unknown 19:00–00:55 (marginal) 72.5° at 20:05 53.7° 2.5
NGC 7000 North America Nebula 16 unknown 19:00–19:15 (good) 87.2° at 13:20 109.8° 1.08
V1057 Cyg 16 unknown 19:00–19:15 (good) 87.3° at 13:20 109.8° 0.67
M33 Triangulum Pinwheel 48 unknown 19:00–20:40 (good) 79.1° at 17:55 80.0° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-01-21"

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"}.