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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, 10 October 2026 · astronomical night 20:20 → 05:56 (9.6 h) · Moon 0% (new moon) · weather: forecast

M31M31 18:45–19:20: unusableM31 19:20–20:00: poorM31 20:00–20:25: marginalM31 20:25–03:00: goodM31 03:00–04:00: unusableM31 04:00–05:00: marginalM31 05:00–06:00: goodM31 06:00–06:30: marginalM31 06:30–07:05: poorM31 07:05–07:30: unusableobserve M31 23:10–00:50M42M42 18:45–01:55: unusableM42 01:55–02:25: marginalM42 02:25–03:00: goodM42 03:00–04:00: unusableM42 04:00–05:00: marginalM42 05:00–06:00: goodM42 06:00–06:30: marginalM42 06:30–07:05: poorM42 07:05–07:30: unusableobserve M42 05:10–06:30M45M45 18:45–22:15: unusableM45 22:15–22:45: marginalM45 22:45–03:00: goodM45 03:00–04:00: unusableM45 04:00–05:00: marginalM45 05:00–06:00: goodM45 06:00–06:30: marginalM45 06:30–07:05: poorM45 07:05–07:30: unusableobserve M45 02:30–03:00observe M45 04:00–05:10NGC 7000NGC 7000 18:45–19:20: unusableNGC 7000 19:20–19:50: poorNGC 7000 19:50–20:25: marginalNGC 7000 20:25–03:00: goodNGC 7000 03:00–07:30: unusableobserve NGC 7000 19:50–21:30V1057 CygV1057 Cyg 18:45–19:20: unusableV1057 Cyg 19:20–19:50: poorV1057 Cyg 19:50–20:25: marginalV1057 Cyg 20:25–03:00: goodV1057 Cyg 03:00–07:30: unusableobserve V1057 Cyg 21:30–23:10M33M33 18:45–19:40: unusableM33 19:40–20:25: poorM33 20:25–20:45: marginalM33 20:45–03:00: goodM33 03:00–04:00: unusableM33 04:00–05:00: marginalM33 05:00–06:00: goodM33 06:00–06:30: marginalM33 06:30–07:05: poorM33 07:05–07:30: unusableobserve M33 00:50–02:30scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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

Schedule

localtargethoursmean quality
18:45–19:50 — nothing worth pointing at — 1.08
19:50–21:30 NGC 7000 1.67 0.69
21:30–23:10 V1057 Cyg 1.67 1.0
23:10–00:50 M31 1.67 1.0
00:50–02:30 M33 1.67 1.0
02:30–03:00 M45 0.5 1.0
03:00–04:00 — nothing worth pointing at — 1.0
04:00–05:10 M45 1.17 0.54
05:10–06:30 M42 1.33 0.67
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 82 20:25–03:00 (good) 89.5° at 00:45 149.9° 1.67
M42 Great Orion Nebula 78 48 05:00–06:00 (good) 42.9° at 05:40 112.0° 1.33
M45 Seven Sisters 100 78 22:45–03:00 (good) 72.5° at 03:50 141.1° 1.67
NGC 7000 North America Nebula 100 89 20:25–03:00 (good) 87.2° at 21:05 117.5° 1.67
V1057 Cyg 100 89 20:25–03:00 (good) 87.3° at 21:05 117.5° 1.67
M33 Triangulum Pinwheel 100 82 20:45–03:00 (good) 79.1° at 01:40 160.4° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-10"

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"}.