IT Consulting

← single target

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.

Try: an autumn deep-sky night  ·  ← previous night · next night →

Night of Saturday, 26 December 2026 · astronomical night 18:36 → 06:06 (11.5 h) · Moon 88% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.2M31 18:05–18:40: quality 0.5M31 18:40–20:05: quality 1.0M31 20:05–21:30: quality 0.9M31 21:30–22:45: quality 0.8M31 22:45–00:10: quality 0.7M31 00:10–00:40: quality 0.6M31 00:40–01:00: quality 0.5M31 01:00–01:20: quality 0.4M31 01:20–01:25: quality 0.3observe M31 19:40–21:15M42M42 19:50–20:00: quality 0.4M42 20:00–20:05: quality 0.5M42 20:05–20:25: quality 0.4M42 20:25–20:55: quality 0.5M42 20:55–22:00: quality 0.6M42 22:00–01:10: quality 0.5M42 01:10–02:40: quality 0.4M42 02:40–03:10: quality 0.3M42 03:10–03:25: quality 0.2observe M42 01:00–02:40M45M45 17:30–18:05: quality 0.1M45 18:05–18:30: quality 0.4M45 18:30–18:40: quality 0.5M45 18:40–19:10: quality 0.9M45 19:10–20:05: quality 1.0M45 20:05–21:10: quality 0.8M45 21:10–23:55: quality 0.7M45 23:55–01:25: quality 0.6M45 01:25–02:40: quality 0.5M45 02:40–03:00: quality 0.4M45 03:00–03:25: quality 0.3observe M45 23:25–01:00observe M45 02:40–03:15NGC 7000NGC 7000 17:30–17:50: quality 0.2NGC 7000 17:50–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.5NGC 7000 18:40–20:00: quality 0.9NGC 7000 20:00–20:35: quality 0.8NGC 7000 20:35–21:00: quality 0.7NGC 7000 21:00–21:20: quality 0.6NGC 7000 21:20–21:40: quality 0.5NGC 7000 21:40–21:55: quality 0.4observe NGC 7000 21:15–21:50V1057 CygV1057 Cyg 17:30–17:50: quality 0.2V1057 Cyg 17:50–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.5V1057 Cyg 18:40–20:00: quality 0.9V1057 Cyg 20:00–20:35: quality 0.8V1057 Cyg 20:35–21:00: quality 0.7V1057 Cyg 21:00–21:20: quality 0.6V1057 Cyg 21:20–21:40: quality 0.5V1057 Cyg 21:40–21:55: quality 0.4observe V1057 Cyg 18:05–19:40M33M33 17:30–18:05: quality 0.2M33 18:05–18:40: quality 0.5M33 18:40–20:05: quality 1.0M33 20:05–21:00: quality 0.9M33 21:00–22:55: quality 0.8M33 22:55–00:15: quality 0.7M33 00:15–00:50: quality 0.6M33 00:50–01:10: quality 0.5M33 01:10–01:30: quality 0.4M33 01:30–01:35: quality 0.3observe M33 21:50–23:25scheduleV1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–19:40 V1057 Cyg 1.58 0.75
19:40–21:15 M31 1.58 0.9
21:15–21:50 NGC 7000 0.58 0.48
21:50–23:25 M33 1.58 0.77
23:25–01:00 M45 1.58 0.63
01:00–02:40 M42 1.67 0.42
02:40–03:15 M45 0.58 0.37
03:15–07:50 — nothing worth pointing at — 4.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–00:30 (good) 89.7° at 18:45 104.4° 1.58
M42 Great Orion Nebula 49 unknown 19:50–02:55 (marginal) 42.9° at 23:35 58.1° 1.67
M45 Seven Sisters 100 unknown 18:40–00:35 (good) 72.5° at 21:50 75.8° 2.17
NGC 7000 North America Nebula 65 unknown 18:40–21:10 (good) 87.3° at 15:00 118.9° 0.58
V1057 Cyg 65 unknown 18:40–21:10 (good) 87.3° at 15:00 119.0° 1.58
M33 Triangulum Pinwheel 100 unknown 18:40–00:45 (good) 79.1° at 19:35 101.5° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-12-26"

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"}.