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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 February 2027 · astronomical night 19:17 → 05:52 (10.59 h) · Moon 0% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:15–18:45: quality 0.2M31 18:45–19:20: quality 0.5M31 19:20–19:25: quality 1.0M31 19:25–20:50: quality 0.9M31 20:50–21:45: quality 0.8M31 21:45–22:00: quality 0.7M31 22:00–22:15: quality 0.6M31 22:15–22:35: quality 0.5M31 22:35–22:40: quality 0.4observe M31 21:15–22:30M42M42 18:15–18:45: quality 0.1M42 18:45–19:20: quality 0.4M42 19:20–22:35: quality 0.9M42 22:35–23:45: quality 0.8M42 23:45–00:00: quality 0.7M42 00:00–00:20: quality 0.6M42 00:20–00:35: quality 0.5M42 00:35–00:40: quality 0.4observe M42 22:30–00:40M45M45 18:15–18:45: quality 0.2M45 18:45–19:20: quality 0.5M45 19:20–21:45: quality 1.0M45 21:45–23:05: quality 0.9M45 23:05–23:55: quality 0.8M45 23:55–00:05: quality 0.7M45 00:05–00:20: quality 0.6M45 00:20–00:35: quality 0.5M45 00:35–00:40: quality 0.4observe M45 20:00–21:15NGC 7000NGC 7000 18:15–18:45: quality 0.1NGC 7000 18:45–18:55: quality 0.3NGC 7000 18:55–19:10: quality 0.2NGC 7000 05:20–05:30: quality 0.4NGC 7000 05:30–05:50: quality 0.5NGC 7000 05:50–05:55: quality 0.6NGC 7000 05:55–06:15: quality 0.3NGC 7000 06:15–06:30: quality 0.4NGC 7000 06:30–07:00: quality 0.1observe NGC 7000 05:20–06:30V1057 CygV1057 Cyg 18:15–18:45: quality 0.1V1057 Cyg 18:45–18:55: quality 0.3V1057 Cyg 18:55–19:10: quality 0.2V1057 Cyg 05:20–05:30: quality 0.4V1057 Cyg 05:30–05:50: quality 0.5V1057 Cyg 05:50–05:55: quality 0.6V1057 Cyg 05:55–06:15: quality 0.3V1057 Cyg 06:15–06:30: quality 0.4V1057 Cyg 06:30–07:00: quality 0.1M33M33 18:15–18:45: quality 0.2M33 18:45–19:20: quality 0.5M33 19:20–19:55: quality 1.0M33 19:55–21:15: quality 0.9M33 21:15–22:00: quality 0.8M33 22:00–22:15: quality 0.7M33 22:15–22:30: quality 0.6M33 22:30–22:45: quality 0.5M33 22:45–22:50: quality 0.4observe M33 18:45–20:00scheduleM33M45M31M42NGC 700018:0020:0022:0000:0002:0004:0006:00

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
17:40–18:45 — nothing worth pointing at — 1.08
18:45–20:00 M33 1.25 0.75
20:00–21:15 M45 1.25 1.0
21:15–22:30 M31 1.25 0.68
22:30–00:40 M42 2.17 0.72
00:40–05:20 — nothing worth pointing at — 4.67
05:20–06:30 NGC 7000 1.17 0.42
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 71 unknown 19:20–22:10 (good) 89.7° at 16:00 70.8° 1.25
M42 Great Orion Nebula 89 unknown 19:20–00:10 (good) 42.9° at 20:50 117.8° 2.17
M45 Seven Sisters 100 unknown 19:20–00:15 (good) 72.5° at 19:05 98.8° 1.25
NGC 7000 North America Nebula 10 unknown 05:20–06:30 (marginal) 87.3° at 12:15 59.3° 1.17
V1057 Cyg 10 unknown 05:20–06:30 (marginal) 87.3° at 12:15 59.2° 0.0
M33 Triangulum Pinwheel 80 unknown 19:20–22:25 (good) 79.1° at 16:50 73.3° 1.25

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-02-06"

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"}.