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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 Tuesday, 16 November 2027 · astronomical night 18:36 → 05:35 (10.98 h) · Moon 90% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:35–18:05: quality 0.1M31 18:05–18:40: quality 0.5M31 18:40–18:50: quality 1.0M31 18:50–18:55: quality 0.8M31 18:55–21:20: quality 0.7M31 21:20–00:10: quality 0.6M31 00:10–02:00: quality 0.5M31 02:00–03:20: quality 0.4M31 03:20–03:50: quality 0.3M31 03:50–04:05: quality 0.2observe M31 21:25–23:05observe M31 01:55–03:35M42M42 22:30–23:05: quality 0.2M42 23:05–05:15: quality 0.3M42 05:15–05:40: quality 0.2M42 05:40–06:05: quality 0.1M45M45 18:55–19:15: quality 0.3M45 19:15–19:40: quality 0.4M45 19:40–21:20: quality 0.5M45 21:20–00:05: quality 0.4M45 00:05–05:20: quality 0.3M45 05:20–05:40: quality 0.2M45 05:40–06:05: quality 0.1observe M45 00:45–01:55NGC 7000NGC 7000 17:35–18:05: quality 0.2NGC 7000 18:05–18:40: quality 0.5NGC 7000 18:40–18:50: quality 1.0NGC 7000 18:50–19:15: quality 0.9NGC 7000 19:15–21:20: quality 0.8NGC 7000 21:20–22:45: quality 0.7NGC 7000 22:45–23:35: quality 0.6NGC 7000 23:35–00:00: quality 0.5NGC 7000 00:00–00:20: quality 0.4NGC 7000 00:20–00:35: quality 0.3observe NGC 7000 18:05–19:45V1057 CygV1057 Cyg 17:35–18:05: quality 0.2V1057 Cyg 18:05–18:40: quality 0.5V1057 Cyg 18:40–18:50: quality 1.0V1057 Cyg 18:50–19:15: quality 0.9V1057 Cyg 19:15–21:20: quality 0.8V1057 Cyg 21:20–22:45: quality 0.7V1057 Cyg 22:45–23:35: quality 0.6V1057 Cyg 23:35–00:00: quality 0.5V1057 Cyg 00:00–00:20: quality 0.4V1057 Cyg 00:20–00:35: quality 0.3observe V1057 Cyg 19:45–21:25M33M33 17:35–18:05: quality 0.1M33 18:05–18:35: quality 0.4M33 18:35–18:40: quality 0.5M33 18:40–18:50: quality 0.9M33 18:50–20:35: quality 0.7M33 20:35–22:55: quality 0.6M33 22:55–01:25: quality 0.5M33 01:25–03:25: quality 0.4M33 03:25–03:55: quality 0.3M33 03:55–04:15: quality 0.2observe M33 23:05–00:45observe M33 03:35–03:40scheduleNGC 7000V1057 CygM31M33M45M3118:0020:0022:0000:0002:0004:0006:00

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
17:00–18:05 — nothing worth pointing at — 1.08
18:05–19:45 NGC 7000 1.67 0.74
19:45–21:25 V1057 Cyg 1.67 0.8
21:25–23:05 M31 1.67 0.61
23:05–00:45 M33 1.67 0.51
00:45–01:55 M45 1.17 0.31
01:55–03:35 M31 1.67 0.4
03:35–03:40 M33 0.08 0.31
03:40–07:15 — nothing worth pointing at — 3.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–22:35 (good) 89.5° at 21:25 65.5° 3.33
M42 Great Orion Nebula 15 unknown 23:30–23:55 (marginal) 42.9° at 02:15 32.3° 0.0
M45 Seven Sisters 44 unknown 19:05–01:55 (marginal) 72.5° at 00:25 30.5° 1.17
NGC 7000 North America Nebula 100 unknown 18:40–23:25 (good) 87.2° at 17:40 98.5° 1.67
V1057 Cyg 100 unknown 18:40–23:25 (good) 87.3° at 17:40 98.6° 1.67
M33 Triangulum Pinwheel 91 unknown 18:40–21:40 (good) 79.1° at 22:15 58.0° 1.75

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-16"

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"}.