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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 Thursday, 04 March 2027 · astronomical night 19:46 → 05:18 (9.52 h) · Moon 11% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:45–19:15: quality 0.1M31 19:15–19:50: quality 0.4M31 19:50–20:00: quality 0.8M31 20:00–20:20: quality 0.7M31 20:20–20:35: quality 0.6M31 20:35–20:50: quality 0.5M31 20:50–21:00: quality 0.4M42M42 18:45–19:15: quality 0.1M42 19:15–19:50: quality 0.4M42 19:50–20:55: quality 0.9M42 20:55–22:05: quality 0.8M42 22:05–22:20: quality 0.7M42 22:20–22:35: quality 0.6M42 22:35–22:50: quality 0.5M42 22:50–23:00: quality 0.4observe M42 21:00–23:00M45M45 18:45–19:15: quality 0.2M45 19:15–19:50: quality 0.5M45 19:50–20:05: quality 1.0M45 20:05–21:25: quality 0.9M45 21:25–22:10: quality 0.8M45 22:10–22:25: quality 0.7M45 22:25–22:40: quality 0.6M45 22:40–22:50: quality 0.5M45 22:50–23:00: quality 0.4observe M45 19:15–20:15NGC 7000NGC 7000 03:40–03:50: quality 0.4NGC 7000 03:50–04:05: quality 0.5NGC 7000 04:05–04:25: quality 0.6NGC 7000 04:25–04:40: quality 0.7NGC 7000 04:40–05:20: quality 0.8NGC 7000 05:20–05:55: quality 0.4NGC 7000 05:55–06:25: quality 0.1observe NGC 7000 03:40–04:40V1057 CygV1057 Cyg 03:40–03:50: quality 0.4V1057 Cyg 03:50–04:05: quality 0.5V1057 Cyg 04:05–04:25: quality 0.6V1057 Cyg 04:25–04:40: quality 0.7V1057 Cyg 04:40–05:20: quality 0.8V1057 Cyg 05:20–05:55: quality 0.4V1057 Cyg 05:55–06:25: quality 0.1observe V1057 Cyg 04:40–05:55M33M33 18:45–19:15: quality 0.1M33 19:15–19:50: quality 0.4M33 19:50–20:20: quality 0.8M33 20:20–20:35: quality 0.7M33 20:35–20:45: quality 0.6M33 20:45–21:00: quality 0.5M33 21:00–21:10: quality 0.4observe M33 20:15–21:00scheduleM45M33M42NGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

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
18:10–19:15 — nothing worth pointing at — 1.08
19:15–20:15 M45 1.0 0.68
20:15–21:00 M33 0.75 0.62
21:00–23:00 M42 2.0 0.7
23:00–03:40 — nothing worth pointing at — 4.67
03:40–04:40 NGC 7000 1.0 0.58
04:40–05:55 V1057 Cyg 1.25 0.63
05:55–06:55 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 20 unknown 19:50–20:25 (good) 89.5° at 14:15 84.4° 0.0
M42 Great Orion Nebula 60 unknown 19:50–22:30 (good) 42.9° at 19:10 129.5° 2.0
M45 Seven Sisters 70 unknown 19:50–22:30 (good) 72.5° at 17:20 114.3° 1.0
NGC 7000 North America Nebula 30 unknown 04:15–05:20 (good) 87.3° at 10:30 64.8° 1.0
V1057 Cyg 30 unknown 04:15–05:20 (good) 87.3° at 10:30 64.8° 1.25
M33 Triangulum Pinwheel 24 unknown 19:50–20:40 (good) 79.1° at 15:10 88.4° 0.75

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-03-04"

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"}.