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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, 06 March 2027 · astronomical night 19:49 → 05:14 (9.43 h) · Moon 2% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:45–19:20: quality 0.1M31 19:20–19:50: quality 0.4M31 19:50–19:55: quality 0.8M31 19:55–20:10: quality 0.7M31 20:10–20:25: quality 0.6M31 20:25–20:45: quality 0.5M31 20:45–20:50: quality 0.4M42M42 18:45–19:20: quality 0.1M42 19:20–19:50: quality 0.4M42 19:50–20:45: quality 0.9M42 20:45–21:55: quality 0.8M42 21:55–22:10: quality 0.7M42 22:10–22:30: quality 0.6M42 22:30–22:45: quality 0.5M42 22:45–22:50: quality 0.4observe M42 20:55–22:50M45M45 18:45–19:10: quality 0.2M45 19:10–19:20: quality 0.1M45 19:20–19:50: quality 0.5M45 19:50–19:55: quality 1.0M45 19:55–21:15: quality 0.9M45 21:15–22:05: quality 0.8M45 22:05–22:15: quality 0.7M45 22:15–22:30: quality 0.6M45 22:30–22:45: quality 0.5M45 22:45–22:50: quality 0.4observe M45 19:20–20:20NGC 7000NGC 7000 03:30–03:40: quality 0.4NGC 7000 03:40–04:00: quality 0.5NGC 7000 04:00–04:15: quality 0.6NGC 7000 04:15–04:30: quality 0.7NGC 7000 04:30–05:15: quality 0.8NGC 7000 05:15–05:50: quality 0.4NGC 7000 05:50–06:20: quality 0.1observe NGC 7000 03:30–04:30V1057 CygV1057 Cyg 03:30–03:40: quality 0.4V1057 Cyg 03:40–04:00: quality 0.5V1057 Cyg 04:00–04:15: quality 0.6V1057 Cyg 04:15–04:30: quality 0.7V1057 Cyg 04:30–05:15: quality 0.8V1057 Cyg 05:15–05:50: quality 0.4V1057 Cyg 05:50–06:20: quality 0.1observe V1057 Cyg 04:30–05:50M33M33 18:45–19:20: quality 0.1M33 19:20–19:50: quality 0.4M33 19:50–20:10: quality 0.8M33 20:10–20:25: quality 0.7M33 20:25–20:40: quality 0.6M33 20:40–20:55: quality 0.5M33 20:55–21:00: quality 0.4observe M33 20:20–20:55scheduleM45M42NGC 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
18:15–19:20 — nothing worth pointing at — 1.08
19:20–20:20 M45 1.0 0.71
20:20–20:55 M33 0.58 0.57
20:55–22:50 M42 1.92 0.7
22:50–03:30 — nothing worth pointing at — 4.67
03:30–04:30 NGC 7000 1.0 0.56
04:30–05:50 V1057 Cyg 1.33 0.64
05:50–06:50 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 16 unknown 19:50–20:20 (good) 89.7° at 14:10 63.5° 0.0
M42 Great Orion Nebula 57 unknown 19:50–22:20 (good) 42.9° at 19:00 110.9° 1.92
M45 Seven Sisters 65 unknown 19:50–22:25 (good) 72.5° at 17:15 90.2° 1.0
NGC 7000 North America Nebula 31 unknown 04:05–05:15 (good) 87.2° at 10:20 57.2° 1.0
V1057 Cyg 31 unknown 04:05–05:15 (good) 87.3° at 10:20 57.1° 1.33
M33 Triangulum Pinwheel 21 unknown 19:50–20:30 (good) 79.1° at 15:00 65.0° 0.58

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-03-06"

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"}.