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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 Sunday, 23 August 2043 · astronomical night 21:51 → 04:56 (7.1 h) · Moon 87% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:20–21:35: quality 0.2M31 21:35–21:40: quality 0.3M31 21:40–21:55: quality 0.2M31 21:55–22:10: quality 0.4M31 22:10–01:35: quality 0.5M31 01:35–05:00: quality 0.4M31 05:00–05:35: quality 0.2M31 05:35–06:10: quality 0.1observe M31 00:25–02:00M42M42 05:05–05:15: quality 0.1M42 05:15–05:35: quality 0.2M42 05:35–06:10: quality 0.1M45M45 01:25–01:40: quality 0.2M45 01:40–02:10: quality 0.3M45 02:10–04:40: quality 0.4M45 04:40–05:00: quality 0.5M45 05:00–05:35: quality 0.2M45 05:35–06:10: quality 0.1observe M45 03:35–05:00NGC 7000NGC 7000 20:40–21:15: quality 0.1NGC 7000 21:15–21:40: quality 0.5NGC 7000 21:40–21:55: quality 0.4NGC 7000 21:55–23:55: quality 0.7NGC 7000 23:55–03:10: quality 0.6NGC 7000 03:10–05:00: quality 0.5NGC 7000 05:00–05:35: quality 0.2NGC 7000 05:35–06:10: quality 0.1observe NGC 7000 21:15–22:50V1057 CygV1057 Cyg 20:40–21:15: quality 0.1V1057 Cyg 21:15–21:40: quality 0.5V1057 Cyg 21:40–21:55: quality 0.4V1057 Cyg 21:55–23:50: quality 0.7V1057 Cyg 23:50–03:10: quality 0.6V1057 Cyg 03:10–05:00: quality 0.5V1057 Cyg 05:00–05:35: quality 0.2V1057 Cyg 05:35–06:10: quality 0.1observe V1057 Cyg 22:50–00:25M33M33 22:50–23:00: quality 0.2M33 23:00–23:30: quality 0.3M33 23:30–05:00: quality 0.4M33 05:00–05:35: quality 0.2M33 05:35–06:10: 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 0.61
22:50–00:25 V1057 Cyg 1.58 0.66
00:25–02:00 M31 1.58 0.46
02:00–03:35 M33 1.58 0.38
03:35–05:00 M45 1.42 0.44
05:00–06:40 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 42 unknown 21:55–05:00 (marginal) 89.5° at 03:55 35.1° 1.58
M42 Great Orion Nebula 1 unknown — 42.9° at 08:50 73.2° 0.0
M45 Seven Sisters 18 unknown 01:55–05:00 (marginal) 72.6° at 07:00 46.8° 1.42
NGC 7000 North America Nebula 74 unknown 21:55–01:10 (good) 87.2° at 00:15 62.3° 1.58
V1057 Cyg 74 unknown 21:55–01:10 (good) 87.2° at 00:15 62.2° 1.58
M33 Triangulum Pinwheel 25 unknown 23:15–05:00 (marginal) 79.2° at 04:50 26.9° 1.58

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-08-23"

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"}.