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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, 29 July 2028 · astronomical night 22:36 → 04:19 (5.71 h) · Moon 63% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 22:55–23:10: quality 0.4M31 23:10–23:25: quality 0.5M31 23:25–23:45: quality 0.6M31 23:45–00:00: quality 0.7M31 00:00–00:45: quality 0.8M31 00:45–02:10: quality 0.9M31 02:10–04:20: quality 1.0M31 04:20–05:05: quality 0.5M31 05:05–05:45: quality 0.2observe M31 00:55–02:25M42M45M45 03:00–03:10: quality 0.4M45 03:10–03:25: quality 0.5M45 03:25–03:35: quality 0.6M45 03:35–03:50: quality 0.7M45 03:50–04:20: quality 0.8M45 04:20–05:05: quality 0.4M45 05:05–05:45: quality 0.1observe M45 03:55–05:05NGC 7000NGC 7000 21:15–21:55: quality 0.1NGC 7000 21:55–22:40: quality 0.4NGC 7000 22:40–00:30: quality 0.9NGC 7000 00:30–04:20: quality 1.0NGC 7000 04:20–05:05: quality 0.5NGC 7000 05:05–05:45: quality 0.1observe NGC 7000 21:55–23:25V1057 CygV1057 Cyg 21:15–21:55: quality 0.1V1057 Cyg 21:55–22:40: quality 0.4V1057 Cyg 22:40–00:30: quality 0.9V1057 Cyg 00:30–04:20: quality 1.0V1057 Cyg 04:20–05:05: quality 0.5V1057 Cyg 05:05–05:45: quality 0.1observe V1057 Cyg 23:25–00:55M33M33 00:25–00:35: quality 0.4M33 00:35–00:50: quality 0.5M33 00:50–01:05: quality 0.6M33 01:05–01:15: quality 0.7M33 01:15–02:05: quality 0.8M33 02:05–03:25: quality 0.9M33 03:25–04:20: quality 1.0M33 04:20–05:05: quality 0.5M33 05:05–05:45: quality 0.2observe M33 02:25–03:55scheduleNGC 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
20:40–21:55 — nothing worth pointing at — 1.25
21:55–23:25 NGC 7000 1.5 0.65
23:25–00:55 V1057 Cyg 1.5 0.93
00:55–02:25 M31 1.5 0.91
02:25–03:55 M33 1.5 0.93
03:55–05:05 M45 1.17 0.57
05:05–06:15 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 23:35–04:20 (good) 89.5° at 05:30 143.2° 1.5
M42 Great Orion Nebula 0 unknown — 42.9° at 10:25 135.7° 0.0
M45 Seven Sisters 27 unknown 03:30–04:20 (good) 72.5° at 08:35 172.8° 1.17
NGC 7000 North America Nebula 100 unknown 22:40–04:20 (good) 87.2° at 01:50 102.9° 1.5
V1057 Cyg 100 unknown 22:40–04:20 (good) 87.3° at 01:50 102.9° 1.5
M33 Triangulum Pinwheel 93 unknown 00:55–04:20 (good) 79.1° at 06:25 156.1° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-07-29"

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"}.