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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 Tuesday, 17 August 2038 · astronomical night 22:02 → 04:48 (6.76 h) · Moon 91% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:45–22:00: quality 0.2M31 22:00–22:05: quality 0.3M31 22:05–22:30: quality 0.4M31 22:30–04:50: quality 0.5M31 04:50–05:30: quality 0.2M31 05:30–06:05: quality 0.1observe M31 00:25–01:55M42M42 05:25–05:30: quality 0.1M42 05:40–06:05: quality 0.1M45M45 01:50–01:55: quality 0.2M45 01:55–02:20: quality 0.3M45 02:20–02:45: quality 0.4M45 02:45–04:50: quality 0.5M45 04:50–05:30: quality 0.3M45 05:30–06:05: quality 0.1observe M45 03:25–04:50NGC 7000NGC 7000 20:50–21:25: quality 0.1NGC 7000 21:25–22:05: quality 0.5NGC 7000 22:05–00:15: quality 0.7NGC 7000 00:15–04:00: quality 0.6NGC 7000 04:00–04:50: quality 0.5NGC 7000 04:50–05:30: quality 0.3NGC 7000 05:30–06:05: quality 0.1observe NGC 7000 21:25–22:55V1057 CygV1057 Cyg 20:50–21:25: quality 0.1V1057 Cyg 21:25–22:05: quality 0.5V1057 Cyg 22:05–00:15: quality 0.7V1057 Cyg 00:15–04:00: quality 0.6V1057 Cyg 04:00–04:50: quality 0.5V1057 Cyg 04:50–05:30: quality 0.3V1057 Cyg 05:30–06:05: quality 0.1observe V1057 Cyg 22:55–00:25M33M33 23:15–23:45: quality 0.3M33 23:45–02:40: quality 0.4M33 02:40–03:10: quality 0.5M33 03:10–04:35: quality 0.4M33 04:35–04:50: quality 0.5M33 04:50–05:30: quality 0.2M33 05:30–06:05: quality 0.1observe M33 01:55–03:25scheduleNGC 7000V1057 CygM31M33M4522:0000:0002:0004:0006:00

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
20:15–21:25 — nothing worth pointing at — 1.17
21:25–22:55 NGC 7000 1.5 0.62
22:55–00:25 V1057 Cyg 1.5 0.67
00:25–01:55 M31 1.5 0.51
01:55–03:25 M33 1.5 0.45
03:25–04:50 M45 1.42 0.5
04:50–06:35 — nothing worth pointing at — 1.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 47 unknown 22:05–04:50 (marginal) 89.8° at 04:20 46.7° 1.5
M42 Great Orion Nebula 0 unknown — 42.9° at 09:10 81.6° 0.0
M45 Seven Sisters 21 unknown 02:05–04:50 (marginal) 72.5° at 07:25 60.6° 1.42
NGC 7000 North America Nebula 75 unknown 22:05–01:50 (good) 87.2° at 00:35 64.7° 1.5
V1057 Cyg 74 unknown 22:05–01:50 (good) 87.3° at 00:35 64.6° 1.5
M33 Triangulum Pinwheel 29 unknown 23:30–04:50 (marginal) 79.2° at 05:10 41.0° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2038-08-17"

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"}.