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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 Sunday, 06 February 2028 · astronomical night 19:16 → 05:52 (10.6 h) · Moon 81% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:15–18:45: quality 0.1M31 18:45–19:20: quality 0.3M31 19:20–21:15: quality 0.5M31 21:15–22:05: quality 0.4M31 22:05–22:35: quality 0.3M31 22:35–22:40: quality 0.2observe M31 19:20–20:20M42M42 18:15–18:45: quality 0.1M42 18:45–19:20: quality 0.2M42 19:20–00:20: quality 0.3M42 00:20–00:40: quality 0.2observe M42 22:20–23:55M45M45 18:15–18:45: quality 0.1M45 18:45–19:20: quality 0.2M45 19:20–21:35: quality 0.4M45 21:35–00:20: quality 0.3M45 00:20–00:40: quality 0.2observe M45 21:20–22:20observe M45 23:55–00:00NGC 7000NGC 7000 18:15–18:45: quality 0.1NGC 7000 18:45–19:10: quality 0.2NGC 7000 05:25–05:30: 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 05:25–05:55observe NGC 7000 06:00–06:30V1057 CygV1057 Cyg 18:15–18:45: quality 0.1V1057 Cyg 18:45–19:10: quality 0.2V1057 Cyg 05:25–05:30: 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 0.1M33 18:45–19:20: quality 0.3M33 19:20–20:35: quality 0.5M33 20:35–22:10: quality 0.4M33 22:10–22:40: quality 0.3M33 22:40–22:50: quality 0.2observe M33 20:20–21:20scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:40–19:20 — nothing worth pointing at — 1.67
19:20–20:20 M31 1.0 0.51
20:20–21:20 M33 1.0 0.44
21:20–22:20 M45 1.0 0.35
22:20–23:55 M42 1.58 0.33
23:55–00:00 M45 0.08 0.31
00:00–05:25 — nothing worth pointing at — 5.42
05:25–05:55 NGC 7000 0.5 0.5
05:55–06:00 — nothing worth pointing at — 0.08
06:00–06:30 NGC 7000 0.5 0.35
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 22 unknown 19:20–22:20 (marginal) 89.7° at 16:00 62.6° 1.0
M42 Great Orion Nebula 15 unknown 19:20–23:55 (marginal) 42.9° at 20:50 31.9° 1.58
M45 Seven Sisters 18 unknown 19:20–00:00 (marginal) 72.5° at 19:05 26.9° 1.08
NGC 7000 North America Nebula 9 unknown 05:25–05:55 (marginal) 87.2° at 12:15 96.5° 1.0
V1057 Cyg 9 unknown 05:25–05:55 (marginal) 87.3° at 12:15 96.6° 0.0
M33 Triangulum Pinwheel 21 unknown 19:20–22:25 (marginal) 79.1° at 16:50 54.7° 1.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-06"

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"}.