Timezone: Europe/Paris Site: lat 50.25°, lon 8.49°, elevation 660 meters Astronomical darkness: Sunday 2026-07-26 00:12 → Sunday 2026-07-26 02:54 (2h 42m) Moon Phase: 86% — Waxing Gibbous • Rise 19:55 • Set 02:00 Score ≥80 = Good · 50–79 = OK · <50 = Poor — Score breakdown: Airmass 0–40 · Visibility 0–35 · Best-time 0–5 · Size 0–20 Grade Name Type Const Wdeg Hdeg MaxAlt° Airmass↓ Vis Best Local ----------------------------------------------------------------------------------------------------------------------- 96 NGC 7000 Emission Cyg 2.000 1.667 84.2 1.00 165 2026-07-26 02:12 93 IC 5070 Emission Cyg 1.000 0.833 84.2 1.00 165 2026-07-26 02:03 78 M 39 Open Cyg 0.533 0.533 88.3 0.98 165 2026-07-26 02:45 77 Barnard 150 Dark Cep 1.000 0.333 81.1 1.01 165 2026-07-26 02:42 70 Barnard 168 Dark Cyg 1.000 0.083 86.9 0.99 165 2026-07-26 02:12 70 Veil Nebula Complex SNR Cyg 3.000 3.000 70.6 1.06 165 2026-07-26 01:57 69 IC 1396A Dark Cep 0.333 0.250 82.6 1.00 165 2026-07-26 02:48 67 Barnard 361 Dark Cyg 0.200 0.200 87.9 0.98 165 2026-07-26 02:30 66 LDN 1147 Dark Cep 0.833 0.667 72.3 1.05 165 2026-07-26 01:51 63 NGC 6826 Planetary Cyg 0.018 0.017 89.7 0.98 165 2026-07-26 00:57 63 NGC 6888 Emission Cyg 0.300 0.200 78.2 1.02 165 2026-07-26 01:24 63 NGC 6946 Galaxy Cep 0.192 0.167 80.0 1.01 165 2026-07-26 01:48 61 NGC 7008 Planetary Cyg 0.024 0.024 85.6 0.99 165 2026-07-26 02:12 58 M 29 Open Cyg 0.117 0.117 78.3 1.02 165 2026-07-26 01:36 56 LDN 1158 Dark Cep 0.500 0.333 72.8 1.04 165 2026-07-26 01:54 49 NGC 7023 Reflection Cep 0.300 0.300 72.0 1.05 165 2026-07-26 02:12 46 vdB 141 Reflection Cep 0.250 0.200 72.0 1.05 165 2026-07-26 02:27 45 Barnard 142 Dark Aql 1.000 0.500 50.1 1.30 144 2026-07-26 00:54 40 M 56 Globular Lyr 0.117 0.117 70.0 1.06 165 2026-07-26 00:30 36 Barnard 143 Dark Aql 0.667 0.333 49.8 1.31 141 2026-07-26 00:54 26 M 27 Planetary Vul 0.133 0.093 62.5 1.12 165 2026-07-26 01:12 26 M 71 Globular Sge 0.120 0.120 58.6 1.17 165 2026-07-26 01:06 22 M 15 Globular Peg 0.200 0.200 52.0 1.27 132 2026-07-26 02:42 13 NGC 6781 Planetary Aql 0.030 0.030 46.3 1.38 72 2026-07-26 00:30 ----------------------------------------------------------------------------------------------------------------------- Selection filters: • MIN_ALT = 45° — Only count visibility and scoring above this altitude. • MIN_DURATION_MIN = 15 min — Must stay ≥ MIN_ALT for at least this long. • MAX_AIRMASS = 2.00 — Must reach airmass ≤ this value (lower is better; 1.0 ≈ zenith). • EDGE_GUARD_MIN = 5 min — Best time must be ≥ this far from astro-dark edges. • REF_HOUR_LOCAL = 01:33; MIN_ALT_AT_REF = 30° — If 01:33 falls inside the window, altitude then must be ≥ 30°. • DEC_MAX_N = +90° — Declination cap disabled (no extra culling of far-north targets). • DIURNAL_SWING_MIN = 1.0° — Require at least this altitude swing in the window (rejects flat circumpolars).