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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, 05 June 2027 · astronomical night 22:59 → 03:39 (4.67 h) · Moon 2% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 02:30–02:40: quality 0.4M31 02:40–02:55: quality 0.5M31 02:55–03:10: quality 0.6M31 03:10–03:30: quality 0.7M31 03:30–03:40: quality 0.8M31 03:40–04:35: quality 0.4M31 04:35–05:15: quality 0.1observe M31 02:30–03:55M42M45NGC 7000NGC 7000 22:35–22:50: quality 0.2NGC 7000 22:50–23:00: quality 0.3NGC 7000 23:00–23:15: quality 0.6NGC 7000 23:15–23:35: quality 0.7NGC 7000 23:35–00:30: quality 0.8NGC 7000 00:30–02:00: quality 0.9NGC 7000 02:00–03:40: quality 1.0NGC 7000 03:40–04:35: quality 0.5NGC 7000 04:35–05:15: quality 0.2observe NGC 7000 23:00–00:25observe NGC 7000 03:55–04:30V1057 CygV1057 Cyg 22:35–22:50: quality 0.2V1057 Cyg 22:50–23:00: quality 0.3V1057 Cyg 23:00–23:20: quality 0.6V1057 Cyg 23:20–23:35: quality 0.7V1057 Cyg 23:35–00:30: quality 0.8V1057 Cyg 00:30–02:00: quality 0.9V1057 Cyg 02:00–03:40: quality 1.0V1057 Cyg 03:40–04:35: quality 0.5V1057 Cyg 04:35–05:15: quality 0.2observe V1057 Cyg 00:25–02:30M33M33 04:05–04:15: quality 0.2M33 04:15–04:35: quality 0.3M33 04:35–05:15: quality 0.1observe M33 04:30–04:35scheduleNGC 7000V1057 CygM31NGC 700022:0000:0002:0004:00

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
20:50–23:00 — nothing worth pointing at — 2.17
23:00–00:25 NGC 7000 1.42 0.75
00:25–02:30 V1057 Cyg 2.08 0.91
02:30–03:55 M31 1.42 0.57
03:55–04:30 NGC 7000 0.58 0.5
04:30–04:35 M33 0.08 0.3
04:35–05:50 — nothing worth pointing at — 1.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 24 unknown 03:05–03:40 (good) 89.5° at 09:10 65.3° 1.42
M42 Great Orion Nebula 0 unknown — 42.9° at 14:05 32.9° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 12:15 30.6° 0.0
NGC 7000 North America Nebula 100 unknown 23:10–03:40 (good) 87.2° at 05:25 98.1° 2.0
V1057 Cyg 100 unknown 23:10–03:40 (good) 87.3° at 05:25 98.2° 2.08
M33 Triangulum Pinwheel 2 unknown 04:30–04:35 (marginal) 79.1° at 10:00 58.0° 0.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-06-05"

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"}.