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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 Wednesday, 01 July 2026 · astronomical night 23:09 → 03:41 (4.54 h) · Moon 96% (waning gibbous) · weather: ERA5 history

M31M31 00:50–01:00: quality 0.1M31 02:00–03:00: quality 0.1M31 03:00–03:45: quality 0.4M31 03:45–04:00: quality 0.2M31 04:00–04:35: quality 0.1observe M31 03:00–03:35M42M45NGC 7000NGC 7000 23:00–23:10: quality 0.2NGC 7000 23:10–00:00: quality 0.4NGC 7000 00:00–01:00: quality 0.1NGC 7000 02:00–03:00: quality 0.1NGC 7000 03:00–03:45: quality 0.4NGC 7000 03:45–04:00: quality 0.2NGC 7000 04:00–04:35: quality 0.1observe NGC 7000 23:10–23:45V1057 CygV1057 Cyg 23:00–23:10: quality 0.2V1057 Cyg 23:10–00:00: quality 0.4V1057 Cyg 00:00–01:00: quality 0.1V1057 Cyg 02:00–03:00: quality 0.1V1057 Cyg 03:00–03:45: quality 0.4V1057 Cyg 03:45–04:00: quality 0.2V1057 Cyg 04:00–04:35: quality 0.1observe V1057 Cyg 23:45–00:00observe V1057 Cyg 03:35–03:45M33M33 02:20–03:00: quality 0.1M33 03:00–03:10: quality 0.3M33 03:10–03:45: quality 0.4M33 03:45–04:00: quality 0.2M33 04:00–04:35: quality 0.1scheduleNGC 7000M3122:0000:0002:0004:00

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
20:55–23:10 — nothing worth pointing at — 2.25
23:10–23:45 NGC 7000 0.58 0.36
23:45–00:00 V1057 Cyg 0.25 0.37
00:00–03:00 — nothing worth pointing at — 3.0
03:00–03:35 M31 0.58 0.39
03:35–03:45 V1057 Cyg 0.17 0.38
03:45–05:55 — nothing worth pointing at — 2.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 35 9 03:00–03:45 (marginal) 89.7° at 07:25 88.4° 0.58
M42 Great Orion Nebula 0 0 — 42.9° at 12:20 131.7° 0.0
M45 Seven Sisters 0 0 — 72.5° at 10:30 118.4° 0.0
NGC 7000 North America Nebula 60 16 23:10–00:00 (marginal) 87.3° at 03:40 67.3° 0.58
V1057 Cyg 60 16 23:10–00:00 (marginal) 87.3° at 03:40 67.2° 0.42
M33 Triangulum Pinwheel 17 7 03:00–03:45 (marginal) 79.1° at 08:15 92.6° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-07-01"

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"}.