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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, 27 October 2026 · astronomical night 18:55 → 05:14 (10.31 h) · Moon 96% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:20–17:55: unusableM31 17:55–19:00: poorM31 19:00–02:20: marginalM31 02:20–05:20: poorM31 05:20–06:50: unusableobserve M31 23:15–01:00observe M31 01:30–02:20M42M42 17:20–23:45: unusableM42 23:45–03:00: poorM42 03:00–05:15: marginalM42 05:15–06:20: poorM42 06:20–06:50: unusableobserve M42 03:00–04:45M45M45 17:20–20:10: unusableM45 20:10–20:50: poorM45 20:50–22:40: marginalM45 22:40–04:35: poorM45 04:35–05:15: marginalM45 05:15–06:20: poorM45 06:20–06:50: unusableobserve M45 04:45–05:15NGC 7000NGC 7000 17:20–17:55: unusableNGC 7000 17:55–18:25: poorNGC 7000 18:25–19:00: marginalNGC 7000 19:00–22:25: goodNGC 7000 22:25–01:30: marginalNGC 7000 01:30–01:50: poorNGC 7000 01:50–06:50: unusableobserve NGC 7000 18:25–20:10observe NGC 7000 01:00–01:30V1057 CygV1057 Cyg 17:20–17:55: unusableV1057 Cyg 17:55–18:25: poorV1057 Cyg 18:25–19:00: marginalV1057 Cyg 19:00–22:25: goodV1057 Cyg 22:25–01:30: marginalV1057 Cyg 01:30–01:50: poorV1057 Cyg 01:50–06:50: unusableobserve V1057 Cyg 20:10–21:55M33M33 17:20–17:55: unusableM33 17:55–19:00: poorM33 19:00–23:15: marginalM33 23:15–05:30: poorM33 05:30–06:50: unusableobserve M33 21:55–23:15scheduleNGC 7000V1057 CygM33M31M31M4218:0020:0022:0000:0002:0004:0006:00

Faded bands: each target's own windows (green good, amber marginal, pink poor). Dark blue: the schedule. Grey columns: twilight.

Schedule

localtargethoursmean quality
17:20–18:25 — nothing worth pointing at — 1.08
18:25–20:10 NGC 7000 1.75 0.61
20:10–21:55 V1057 Cyg 1.75 0.67
21:55–23:15 M33 1.33 0.33
23:15–01:00 M31 1.75 0.34
01:00–01:30 NGC 7000 0.5 0.36
01:30–02:20 M31 0.83 0.31
02:20–03:00 — nothing worth pointing at — 0.67
03:00–04:45 M42 1.75 0.32
04:45–05:15 M45 0.5 0.31
05:15–06:50 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 54 unknown 19:00–02:20 (marginal) 89.7° at 22:40 40.0° 2.58
M42 Great Orion Nebula 15 unknown 03:00–05:15 (marginal) 42.9° at 03:30 41.3° 1.75
M45 Seven Sisters 22 unknown 20:50–22:40 (marginal) 72.5° at 01:45 1.8° 0.5
NGC 7000 North America Nebula 75 unknown 19:00–22:25 (good) 87.2° at 18:55 79.7° 2.25
V1057 Cyg 75 unknown 19:00–22:25 (good) 87.3° at 18:55 79.7° 1.75
M33 Triangulum Pinwheel 39 unknown 19:00–23:15 (marginal) 79.1° at 23:30 28.2° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-27"

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"}.