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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 Saturday, 05 January 2047 · astronomical night 18:44 → 06:08 (11.4 h) · Moon 66% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.1M31 18:15–18:45: quality 0.3M31 18:45–23:55: quality 0.5M31 23:55–00:25: quality 0.4M31 00:25–00:50: quality 0.3observe M31 00:00–00:40M42M42 19:10–19:35: quality 0.3M42 19:35–20:00: quality 0.4M42 20:00–21:25: quality 0.5M42 21:25–02:00: quality 0.6M42 02:00–02:20: quality 0.5M42 02:20–02:25: quality 0.4M42 02:25–02:40: quality 0.5M42 02:40–02:45: quality 0.4observe M42 22:35–00:00M45M45 17:40–18:15: quality 0.1M45 18:15–18:45: quality 0.2M45 18:45–22:10: quality 0.5M45 22:10–01:55: quality 0.6M45 01:55–02:20: quality 0.5M45 02:20–02:25: quality 0.4M45 02:25–02:40: quality 0.5M45 02:40–02:45: quality 0.4observe M45 00:40–02:45NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:45: quality 0.3NGC 7000 18:45–19:45: quality 0.6NGC 7000 19:45–20:30: quality 0.5NGC 7000 20:30–20:55: quality 0.4NGC 7000 20:55–21:15: quality 0.3observe NGC 7000 18:15–18:35observe NGC 7000 18:45–19:50V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:45: quality 0.3V1057 Cyg 18:45–19:45: quality 0.6V1057 Cyg 19:45–20:30: quality 0.5V1057 Cyg 20:30–20:55: quality 0.4V1057 Cyg 20:55–21:15: quality 0.3observe V1057 Cyg 19:50–21:10M33M33 17:40–18:15: quality 0.1M33 18:15–18:45: quality 0.3M33 18:45–00:15: quality 0.5M33 00:15–00:40: quality 0.4M33 00:40–01:00: quality 0.3observe M33 21:10–22:35scheduleNGC 7000V1057 CygM33M42M4518:0020:0022:0000:0002:0004:0006:00

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
17:00–18:15 — nothing worth pointing at — 1.25
18:15–18:35 NGC 7000 0.33 0.3
18:35–18:45 — nothing worth pointing at — 0.17
18:45–19:50 NGC 7000 1.08 0.57
19:50–21:10 V1057 Cyg 1.33 0.44
21:10–22:35 M33 1.42 0.52
22:35–00:00 M42 1.42 0.61
00:00–00:40 M31 0.67 0.36
00:40–02:45 M45 2.08 0.54
02:45–07:50 — nothing worth pointing at — 5.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 39 unknown 18:45–00:40 (marginal) 89.8° at 18:05 28.7° 0.67
M42 Great Orion Nebula 63 unknown 22:45–01:50 (good) 42.9° at 22:55 58.0° 1.42
M45 Seven Sisters 59 unknown 18:45–02:45 (marginal) 72.6° at 21:10 25.7° 2.08
NGC 7000 North America Nebula 21 unknown 18:45–21:10 (marginal) 87.2° at 14:20 67.3° 1.42
V1057 Cyg 21 unknown 18:45–21:10 (marginal) 87.2° at 14:20 67.2° 1.33
M33 Triangulum Pinwheel 42 unknown 18:45–00:50 (marginal) 79.2° at 18:55 14.2° 1.42
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2047-01-05"

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"}.