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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 Thursday, 26 January 2045 · astronomical night 19:05 → 06:01 (10.93 h) · Moon 58% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:00–18:35: quality 0.1M31 18:35–19:10: quality 0.3M31 19:10–20:05: quality 0.6M31 20:05–22:35: quality 0.5M31 22:35–23:00: quality 0.4M31 23:00–23:25: quality 0.3observe M31 22:00–23:05M42M42 18:05–18:35: quality 0.1M42 18:35–18:50: quality 0.2M42 18:50–19:10: quality 0.3M42 19:10–20:10: quality 0.5M42 20:10–00:30: quality 0.6M42 00:30–00:55: quality 0.5M42 00:55–01:15: quality 0.4M42 01:15–01:25: quality 0.3observe M42 23:05–01:25M45M45 18:00–18:35: quality 0.1M45 18:35–19:10: quality 0.3M45 19:10–00:30: quality 0.6M45 00:30–00:50: quality 0.5M45 00:50–01:10: quality 0.4M45 01:10–01:25: quality 0.3observe M45 20:55–22:00NGC 7000NGC 7000 18:00–18:35: quality 0.1NGC 7000 18:35–19:00: quality 0.3NGC 7000 19:00–19:10: quality 0.2NGC 7000 19:10–19:15: quality 0.5NGC 7000 19:15–19:40: quality 0.4NGC 7000 19:40–19:50: quality 0.3NGC 7000 06:05–06:20: quality 0.2NGC 7000 06:20–06:35: quality 0.3NGC 7000 06:35–07:10: quality 0.1observe NGC 7000 19:10–19:50V1057 CygV1057 Cyg 18:00–18:35: quality 0.1V1057 Cyg 18:35–19:00: quality 0.3V1057 Cyg 19:00–19:10: quality 0.2V1057 Cyg 19:10–19:15: quality 0.5V1057 Cyg 19:15–19:40: quality 0.4V1057 Cyg 19:40–19:50: quality 0.3V1057 Cyg 06:05–06:20: quality 0.2V1057 Cyg 06:20–06:35: quality 0.3V1057 Cyg 06:35–07:10: quality 0.1M33M33 18:00–18:35: quality 0.1M33 18:35–19:10: quality 0.3M33 19:10–20:25: quality 0.6M33 20:25–22:50: quality 0.5M33 22:50–23:15: quality 0.4M33 23:15–23:35: quality 0.3observe M33 19:50–20:55scheduleM33M45M31M4218:0020:0022:0000:0002:0004:0006:00

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
17:25–19:10 — nothing worth pointing at — 1.75
19:10–19:50 NGC 7000 0.67 0.38
19:50–20:55 M33 1.08 0.55
20:55–22:00 M45 1.08 0.6
22:00–23:05 M31 1.08 0.45
23:05–01:25 M42 2.33 0.53
01:25–07:40 — nothing worth pointing at — 6.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 19:10–23:15 (marginal) 89.7° at 16:40 33.1° 1.08
M42 Great Orion Nebula 56 unknown 22:05–00:10 (good) 42.9° at 21:35 48.8° 2.33
M45 Seven Sisters 56 unknown 21:35–22:05 (good) 72.6° at 19:45 13.4° 1.08
NGC 7000 North America Nebula 7 unknown 19:10–19:50 (marginal) 87.2° at 12:55 73.5° 0.67
V1057 Cyg 7 unknown 19:10–19:50 (marginal) 87.2° at 12:55 73.5° 0.0
M33 Triangulum Pinwheel 34 unknown 19:10–23:25 (marginal) 79.2° at 17:30 19.2° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-01-26"

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"}.