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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 Friday, 24 August 2040 · astronomical night 21:47 → 04:59 (7.19 h) · Moon 91% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:15–21:30: quality 0.2M31 21:30–21:45: quality 0.3M31 21:45–21:50: quality 0.2M31 21:50–22:00: quality 0.4M31 22:00–02:30: quality 0.5M31 02:30–05:00: quality 0.4M31 05:00–05:40: quality 0.2M31 05:40–06:15: quality 0.1observe M31 00:25–02:00M42M42 04:55–05:00: quality 0.3M42 05:00–05:10: quality 0.1M42 05:10–05:40: quality 0.2M42 05:40–06:15: quality 0.1M45M45 01:20–01:30: quality 0.2M45 01:30–01:55: quality 0.3M45 01:55–03:40: quality 0.4M45 03:40–05:00: quality 0.5M45 05:00–05:40: quality 0.3M45 05:40–06:15: quality 0.1observe M45 03:35–05:00NGC 7000NGC 7000 20:40–21:15: quality 0.1NGC 7000 21:15–21:45: quality 0.5NGC 7000 21:45–21:50: quality 0.4NGC 7000 21:50–00:00: quality 0.7NGC 7000 00:00–03:20: quality 0.6NGC 7000 03:20–05:00: quality 0.5NGC 7000 05:00–05:40: quality 0.2NGC 7000 05:40–06:15: quality 0.1observe NGC 7000 21:15–22:50V1057 CygV1057 Cyg 20:40–21:15: quality 0.1V1057 Cyg 21:15–21:45: quality 0.5V1057 Cyg 21:45–21:50: quality 0.4V1057 Cyg 21:50–00:00: quality 0.7V1057 Cyg 00:00–03:20: quality 0.6V1057 Cyg 03:20–05:00: quality 0.5V1057 Cyg 05:00–05:40: quality 0.2V1057 Cyg 05:40–06:15: quality 0.1observe V1057 Cyg 22:50–00:25M33M33 22:45–22:50: quality 0.2M33 22:50–23:20: quality 0.3M33 23:20–05:00: quality 0.4M33 05:00–05:40: quality 0.2M33 05:40–06:15: quality 0.1observe M33 02:00–03:35scheduleNGC 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
20:05–21:15 — nothing worth pointing at — 1.17
21:15–22:50 NGC 7000 1.58 0.63
22:50–00:25 V1057 Cyg 1.58 0.67
00:25–02:00 M31 1.58 0.48
02:00–03:35 M33 1.58 0.4
03:35–05:00 M45 1.42 0.48
05:00–06:45 — nothing worth pointing at — 1.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 48 unknown 21:50–05:00 (marginal) 89.8° at 03:50 42.1° 1.58
M42 Great Orion Nebula 1 unknown — 42.9° at 08:40 75.6° 0.0
M45 Seven Sisters 22 unknown 01:45–05:00 (marginal) 72.5° at 06:55 53.1° 1.42
NGC 7000 North America Nebula 74 unknown 21:50–01:30 (good) 87.2° at 00:05 65.4° 1.58
V1057 Cyg 74 unknown 21:50–01:25 (good) 87.3° at 00:05 65.3° 1.58
M33 Triangulum Pinwheel 28 unknown 23:05–05:00 (marginal) 79.2° at 04:40 34.6° 1.58

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-08-24"

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"}.