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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, 07 December 2030 · astronomical night 18:30 → 05:55 (11.42 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.2M31 18:35–20:55: quality 0.4M31 20:55–02:10: quality 0.3M31 02:10–02:40: quality 0.2observe M31 21:30–00:00M42M42 21:05–21:10: quality 0.1M42 21:10–22:00: quality 0.2M42 22:00–01:40: quality 0.3M42 01:40–04:00: quality 0.4M42 04:00–04:35: quality 0.3M42 04:35–04:40: quality 0.2observe M42 00:00–01:45observe M42 04:10–04:15M45M45 18:00–18:15: quality 0.1M45 18:15–18:35: quality 0.2M45 18:35–03:00: quality 0.3M45 03:00–03:55: quality 0.4M45 03:55–04:30: quality 0.3M45 04:30–04:40: quality 0.2observe M45 01:45–04:10NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–19:05: quality 0.7NGC 7000 19:05–20:35: quality 0.6NGC 7000 20:35–22:10: quality 0.5NGC 7000 22:10–22:35: quality 0.4NGC 7000 22:35–23:05: quality 0.3NGC 7000 23:05–23:10: quality 0.2observe NGC 7000 18:00–19:45V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–19:05: quality 0.7V1057 Cyg 19:05–20:35: quality 0.6V1057 Cyg 20:35–22:10: quality 0.5V1057 Cyg 22:10–22:35: quality 0.4V1057 Cyg 22:35–23:05: quality 0.3V1057 Cyg 23:05–23:10: quality 0.2observe V1057 Cyg 19:45–21:30M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–19:20: quality 0.4M33 19:20–02:10: quality 0.3M33 02:10–02:50: quality 0.2scheduleNGC 7000V1057 CygM31M42M4518:0020:0022:0000:0002:0004:0006:00

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
18:00–19:45 NGC 7000 1.75 0.54
19:45–21:30 V1057 Cyg 1.75 0.55
21:30–00:00 M31 2.5 0.32
00:00–01:45 M42 1.75 0.33
01:45–04:10 M45 2.42 0.34
04:10–04:15 M42 0.08 0.31
04:15–07:40 — nothing worth pointing at — 3.42

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 32 unknown 18:35–01:45 (marginal) 89.7° at 20:00 40.4° 2.5
M42 Great Orion Nebula 23 unknown 00:00–04:15 (marginal) 42.9° at 00:50 40.8° 1.83
M45 Seven Sisters 28 unknown 00:50–04:10 (marginal) 72.5° at 23:05 6.4° 2.42
NGC 7000 North America Nebula 44 unknown 18:35–19:45 (good) 87.2° at 16:15 80.7° 1.75
V1057 Cyg 44 unknown 18:35–19:45 (good) 87.3° at 16:15 80.7° 1.75
M33 Triangulum Pinwheel 24 unknown 18:35–20:25 (marginal) 79.1° at 20:50 27.2° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-12-07"

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"}.