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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, 08 January 2028 · astronomical night 18:46 → 06:08 (11.37 h) · Moon 86% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.1M31 18:15–18:50: quality 0.2M31 18:50–23:35: quality 0.4M31 23:35–00:15: quality 0.3M31 00:15–00:35: quality 0.2observe M31 20:55–22:15M42M42 19:00–19:40: quality 0.2M42 19:40–23:00: quality 0.3M42 23:00–01:50: quality 0.4M42 01:50–02:25: quality 0.3M42 02:25–02:35: quality 0.2observe M42 23:35–00:55observe M42 02:05–02:10M45M45 17:40–18:15: quality 0.1M45 18:15–18:50: quality 0.2M45 18:50–19:25: quality 0.4M45 19:25–23:10: quality 0.3M45 23:10–01:50: quality 0.4M45 01:50–02:20: quality 0.3M45 02:20–02:35: quality 0.2observe M45 00:55–02:05NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:50: quality 0.3NGC 7000 18:50–19:25: quality 0.6NGC 7000 19:25–20:15: quality 0.5NGC 7000 20:15–20:40: quality 0.4NGC 7000 20:40–21:05: quality 0.3NGC 7000 07:15–07:20: quality 0.1observe NGC 7000 18:15–18:35observe NGC 7000 18:50–19:50V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:50: quality 0.3V1057 Cyg 18:50–19:25: quality 0.6V1057 Cyg 19:25–20:15: quality 0.5V1057 Cyg 20:15–20:40: quality 0.4V1057 Cyg 20:40–21:05: quality 0.3V1057 Cyg 07:15–07:20: quality 0.1observe V1057 Cyg 19:50–20:55M33M33 17:40–18:15: quality 0.1M33 18:15–18:50: quality 0.2M33 18:50–21:05: quality 0.4M33 21:05–00:20: quality 0.3M33 00:20–00:45: quality 0.2observe M33 22:15–23:35scheduleNGC 7000V1057 CygM31M33M42M4518:0020:0022:0000:0002:0004:0006:00

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
17:05–18:15 — nothing worth pointing at — 1.17
18:15–18:35 NGC 7000 0.33 0.3
18:35–18:50 — nothing worth pointing at — 0.25
18:50–19:50 NGC 7000 1.0 0.55
19:50–20:55 V1057 Cyg 1.08 0.42
20:55–22:15 M31 1.33 0.39
22:15–23:35 M33 1.33 0.32
23:35–00:55 M42 1.33 0.37
00:55–02:05 M45 1.17 0.36
02:05–02:10 M42 0.08 0.3
02:10–07:50 — nothing worth pointing at — 5.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 26 unknown 18:50–23:55 (marginal) 89.7° at 17:55 44.7° 1.33
M42 Great Orion Nebula 24 unknown 20:05–02:10 (marginal) 42.9° at 22:45 37.6° 1.42
M45 Seven Sisters 26 unknown 18:50–02:05 (marginal) 72.5° at 21:00 4.8° 1.17
NGC 7000 North America Nebula 19 unknown 18:50–20:55 (marginal) 87.3° at 14:10 83.6° 1.33
V1057 Cyg 19 unknown 18:50–20:55 (marginal) 87.3° at 14:10 83.6° 1.08
M33 Triangulum Pinwheel 20 unknown 18:50–23:55 (marginal) 79.1° at 18:45 34.0° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-01-08"

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"}.