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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, 11 January 2028 · astronomical night 18:49 → 06:08 (11.31 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:45–18:20: quality 0.1M31 18:20–18:40: quality 0.4M31 18:40–18:50: quality 0.3M31 18:50–20:05: quality 0.7M31 20:05–21:45: quality 0.6M31 21:45–23:25: quality 0.5M31 23:25–23:50: quality 0.4M31 23:50–00:20: quality 0.3M31 00:20–00:25: quality 0.2observe M31 20:30–21:35M42M42 18:50–19:10: quality 0.2M42 19:10–23:25: quality 0.3M42 23:25–02:10: quality 0.2M42 02:10–02:25: quality 0.1M45M45 17:45–18:20: quality 0.1M45 18:20–18:50: quality 0.3M45 18:50–20:25: quality 0.5M45 20:25–23:05: quality 0.4M45 23:05–01:45: quality 0.3M45 01:45–02:25: quality 0.2observe M45 22:40–23:45observe M45 00:10–00:40NGC 7000NGC 7000 17:45–18:20: quality 0.1NGC 7000 18:20–18:50: quality 0.4NGC 7000 18:50–19:45: quality 0.7NGC 7000 19:45–20:05: quality 0.6NGC 7000 20:05–20:25: quality 0.5NGC 7000 20:25–20:45: quality 0.4NGC 7000 20:45–20:55: quality 0.3NGC 7000 07:05–07:20: quality 0.1observe NGC 7000 18:20–19:25V1057 CygV1057 Cyg 17:45–18:20: quality 0.1V1057 Cyg 18:20–18:50: quality 0.4V1057 Cyg 18:50–19:45: quality 0.7V1057 Cyg 19:45–20:05: quality 0.6V1057 Cyg 20:05–20:25: quality 0.5V1057 Cyg 20:25–20:45: quality 0.4V1057 Cyg 20:45–20:55: quality 0.3V1057 Cyg 07:05–07:20: quality 0.1observe V1057 Cyg 19:25–20:30M33M33 17:45–18:20: quality 0.1M33 18:20–18:50: quality 0.3M33 18:50–19:15: quality 0.7M33 19:15–21:30: quality 0.6M33 21:30–23:10: quality 0.5M33 23:10–00:00: quality 0.4M33 00:00–00:25: quality 0.3M33 00:25–00:35: quality 0.2observe M33 21:35–22:40observe M33 23:45–00:10scheduleNGC 7000V1057 CygM31M33M4518:0020:0022:0000:0002:0004:0006:00

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
17:10–18:20 — nothing worth pointing at — 1.17
18:20–19:25 NGC 7000 1.08 0.54
19:25–20:30 V1057 Cyg 1.08 0.58
20:30–21:35 M31 1.08 0.6
21:35–22:40 M33 1.08 0.51
22:40–23:45 M45 1.08 0.35
23:45–00:10 M33 0.42 0.35
00:10–00:40 M45 0.5 0.31
00:40–07:50 — nothing worth pointing at — 7.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 56 unknown 18:50–21:00 (good) 89.5° at 17:45 81.0° 1.08
M42 Great Orion Nebula 17 unknown 19:35–21:20 (marginal) 42.9° at 22:35 38.4° 0.0
M45 Seven Sisters 39 unknown 18:50–00:40 (marginal) 72.5° at 20:45 48.2° 1.58
NGC 7000 North America Nebula 26 unknown 18:50–19:55 (good) 87.2° at 14:00 108.4° 1.08
V1057 Cyg 26 unknown 18:50–19:55 (good) 87.3° at 14:00 108.4° 1.08
M33 Triangulum Pinwheel 53 unknown 18:50–20:35 (good) 79.1° at 18:35 75.2° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-01-11"

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"}.