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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.

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Night of Thursday, 13 December 2046 · astronomical night 18:31 → 05:59 (11.48 h) · Moon 100% (full moon) · 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 18:35–20:35: quality 0.6M31 20:35–23:00: quality 0.5M31 23:00–01:20: quality 0.4M31 01:20–01:55: quality 0.3M31 01:55–02:20: quality 0.2observe M31 21:35–23:10M42M42 20:40–20:45: quality 0.1M42 20:45–04:10: quality 0.2M42 04:10–04:20: quality 0.1M45M45 17:35–18:00: quality 0.1M45 18:00–18:35: quality 0.2M45 18:35–20:40: quality 0.4M45 20:40–22:50: quality 0.3M45 22:50–04:05: quality 0.2M45 04:05–04:20: quality 0.1observe M45 21:10–21:35NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.4NGC 7000 18:35–19:10: quality 0.8NGC 7000 19:10–20:30: quality 0.7NGC 7000 20:30–21:45: quality 0.6NGC 7000 21:45–22:05: quality 0.5NGC 7000 22:05–22:30: quality 0.4NGC 7000 22:30–22:45: quality 0.3observe NGC 7000 19:35–21:10V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.4V1057 Cyg 18:35–19:10: quality 0.8V1057 Cyg 19:10–20:30: quality 0.7V1057 Cyg 20:30–21:45: quality 0.6V1057 Cyg 21:45–22:05: quality 0.5V1057 Cyg 22:05–22:30: quality 0.4V1057 Cyg 22:30–22:45: quality 0.3observe V1057 Cyg 18:00–19:35M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.3M33 18:35–19:40: quality 0.6M33 19:40–22:00: quality 0.5M33 22:00–00:30: quality 0.4M33 00:30–02:00: quality 0.3M33 02:00–02:30: quality 0.2observe M33 23:10–01:40scheduleV1057 CygNGC 7000M31M3318:0020:0022:0000:0002:0004:0006:00

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
18:00–19:35 V1057 Cyg 1.58 0.63
19:35–21:10 NGC 7000 1.58 0.66
21:10–21:35 M45 0.42 0.31
21:35–23:10 M31 1.58 0.48
23:10–01:40 M33 2.5 0.36
01:40–07:45 — nothing worth pointing at — 6.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 62 unknown 18:35–19:30 (good) 89.7° at 19:35 64.1° 1.58
M42 Great Orion Nebula 10 unknown — 42.9° at 00:30 31.5° 0.0
M45 Seven Sisters 28 unknown 18:35–21:35 (marginal) 72.6° at 22:40 28.4° 0.42
NGC 7000 North America Nebula 57 unknown 18:35–21:15 (good) 87.2° at 15:50 97.9° 1.58
V1057 Cyg 57 unknown 18:35–21:15 (good) 87.2° at 15:50 97.9° 1.58
M33 Triangulum Pinwheel 54 unknown 18:35–18:40 (good) 79.2° at 20:25 56.2° 2.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2046-12-13"

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"}.