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, 20 December 2031 · astronomical night 18:33 → 06:03 (11.51 h) · Moon 49% (first quarter) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.3M31 18:35–00:15: quality 0.7M31 00:15–00:55: quality 0.8M31 00:55–01:10: quality 0.7M31 01:10–01:25: quality 0.6M31 01:25–01:45: quality 0.5M31 01:45–01:50: quality 0.4observe M31 00:40–01:40M42M42 20:15–20:20: quality 0.3M42 20:20–20:35: quality 0.4M42 20:35–20:55: quality 0.5M42 20:55–21:15: quality 0.6M42 21:15–22:35: quality 0.7M42 22:35–00:15: quality 0.8M42 00:15–01:45: quality 0.9M42 01:45–02:55: quality 0.8M42 02:55–03:10: quality 0.7M42 03:10–03:30: quality 0.6M42 03:30–03:45: quality 0.5M42 03:45–03:50: quality 0.4observe M42 01:40–03:50M45M45 17:25–18:00: quality 0.1M45 18:00–18:35: quality 0.3M45 18:35–20:00: quality 0.7M45 20:00–00:00: quality 0.8M45 00:00–00:15: quality 0.9M45 00:15–00:55: quality 1.0M45 00:55–02:15: quality 0.9M45 02:15–03:05: quality 0.8M45 03:05–03:15: quality 0.7M45 03:15–03:30: quality 0.6M45 03:30–03:45: quality 0.5M45 03:45–03:50: quality 0.4observe M45 21:20–23:00NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.4NGC 7000 18:35–20:05: quality 0.7NGC 7000 20:05–21:25: quality 0.6NGC 7000 21:25–21:50: quality 0.5NGC 7000 21:50–22:15: quality 0.4NGC 7000 22:15–22:20: quality 0.3observe NGC 7000 18:00–19:40V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.4V1057 Cyg 18:35–20:05: quality 0.7V1057 Cyg 20:05–21:25: quality 0.6V1057 Cyg 21:25–21:50: quality 0.5V1057 Cyg 21:50–22:10: quality 0.4V1057 Cyg 22:10–22:20: quality 0.3observe V1057 Cyg 19:40–21:20M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.3M33 18:35–22:15: quality 0.7M33 22:15–22:30: quality 0.8M33 22:30–00:15: quality 0.7M33 00:15–00:25: quality 0.9M33 00:25–01:10: quality 0.8M33 01:10–01:25: quality 0.7M33 01:25–01:40: quality 0.6M33 01:40–01:55: quality 0.5M33 01:55–02:00: quality 0.4observe M33 23:00–00:40scheduleNGC 7000V1057 CygM45M33M31M4218:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:40 NGC 7000 1.67 0.58
19:40–21:20 V1057 Cyg 1.67 0.64
21:20–23:00 M45 1.67 0.8
23:00–00:40 M33 1.67 0.75
00:40–01:40 M31 1.0 0.65
01:40–03:50 M42 2.17 0.72
03:50–07:45 — nothing worth pointing at — 3.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 83 unknown 18:35–01:20 (good) 89.7° at 19:10 40.5° 1.0
M42 Great Orion Nebula 89 unknown 21:05–03:20 (good) 42.9° at 00:00 87.6° 2.17
M45 Seven Sisters 99 unknown 18:35–03:25 (good) 72.5° at 22:10 61.6° 1.67
NGC 7000 North America Nebula 45 unknown 18:35–21:15 (good) 87.2° at 15:25 55.5° 1.67
V1057 Cyg 45 unknown 18:35–21:15 (good) 87.3° at 15:25 55.4° 1.67
M33 Triangulum Pinwheel 86 unknown 18:35–01:30 (good) 79.1° at 20:00 37.7° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-12-20"

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"}.