Astronomy Seeing

Night
Astronomical Dawn/Dusk
Nautical Dawn/Dusk
Civil Dawn/Dusk
Daytime
Clouds Index Bad Layers Ground Aurora
Time Low Mid High Arc Sec. 1 2 Jet Stream Bot (km) Top (km) K/100m Temp Rel. Hum. Kp Celestial Bodies
Thu – Fri 2026-09-10 – 09-11 Poor
☀ ↓19:58 ↑06:43 ☾ ↑07:01 ↓19:33 New moon: 1%
Period Time
Astronomical Twilight (Evening) 21:24 - 22:18
Deep Sky Darkness 22:18 - 04:25
Astronomical Twilight (Morning) 04:25 - 05:18
Period Duration
Astronomical Twilight (Evening) 0 hours 54 minutes
Deep Sky Darkness 6 hours 7 minutes
Total Imaging Time 7 hours 54 minutes
18 73 40 9 1.16 2 1 25m/s 06.2 10.3 1.0 K 15C 76% 2.00 LMV-J----
☀↓ 19 69 29 13 1.28 2 1 23m/s 06.2 10.3 1.1 K 15C 71% 2.00 LMV------
20 44 44 16 1.52 1 1 20m/s 07.0 10.3 1.3 K 14C 72% 2.00 --------P
21 69 23 17 1.62 2 1 18m/s 07.0 10.3 1.3 K 14C 76% 2.00 -----S-NP
22 61 51 12 1.49 1 1 17m/s 07.0 10.3 1.3 K 13C 79% 2.00 -----S-NP
23 74 47 5 1.54 2 1 16m/s 06.2 10.3 1.1 K 13C 82% 2.00 -----SUNP
00 +1 79 86 0 1.53 2 1 16m/s 07.0 10.3 1.3 K 13C 85% 2.33 -----SUNP
01 +1 69 87 0 1.40 2 1 16m/s 07.0 10.3 1.3 K 13C 86% 2.33 -----SUNP
02 +1 63 25 0 1.32 2 1 16m/s 07.1 10.3 1.2 K 13C 86% 2.33 ---M-SUN-
03 +1 54 15 0 1.12 1 1 18m/s 07.1 10.3 1.2 K 13C 85% 2.00 ---M-SUN-
04 +1 54 39 0 1.19 2 1 20m/s 07.1 10.3 1.1 K 13C 86% 2.00 ---MJSUN-
05 +1 50 0 0 1.08 2 1 23m/s 07.1 10.3 1.1 K 13C 88% 2.00 ---MJSUN-
☀↑ 06 +1 58 9 0 1.12 3 1 25m/s 07.1 10.3 0.9 K 13C 87% 2.33 ---MJSUN-
☽↑ 07 +1 71 66 0 1.21 3 1 27m/s 07.1 10.4 0.8 K 14C 86% 2.33 ---MJSUN-
Fri – Sat 2026-09-11 – 09-12 Poor
☀ ↓19:56 ↑06:46 ☾ ↑07:01 ↓19:37 New moon: 0%
Period Time
Astronomical Twilight (Evening) 21:21 - 22:14
Deep Sky Darkness 22:14 - 04:28
Astronomical Twilight (Morning) 04:28 - 05:21
Period Duration
Astronomical Twilight (Evening) 0 hours 53 minutes
Deep Sky Darkness 6 hours 14 minutes
Total Imaging Time 8 hours 0 minutes
18 38 11 0 1.85 4 2 25m/s 02.0 05.7 0.6 K 17C 61% 2.67 LMV-J----
☀↓ 19 27 0 0 1.99 4 2 23m/s 02.0 04.9 0.7 K 16C 66% 2.67 LMV------
20 38 0 0 2.15 4 2 21m/s 02.0 04.9 0.7 K 15C 72% 2.67 --------P
21 46 0 0 2.09 4 2 20m/s 02.0 04.9 0.7 K 14C 79% 2.67 -----S-NP
22 36 0 30 2.03 4 3 18m/s 02.0 04.3 0.7 K 13C 82% 2.67 -----S-NP
23 22 0 71 2.06 4 2 18m/s 06.5 07.3 0.5 K 12C 87% 2.67 -----SUNP
00 +1 14 0 100 2.00 4 3 17m/s 01.5 03.6 0.7 K 12C 91% 3.00 -----SUNP
01 +1 15 0 100 1.75 4 3 17m/s 01.5 03.7 0.7 K 11C 95% 3.00 -----SUNP
02 +1 22 0 93 1.57 5 3 17m/s 01.0 03.1 0.7 K 10C 97% 3.00 ---M-SUN-
03 +1 31 0 86 1.69 5 4 16m/s 01.5 03.1 0.7 K 10C 99% 2.33 ---M-SUN-
04 +1 46 0 89 1.74 4 3 15m/s 01.5 03.7 0.7 K 9C 98% 2.33 ---MJSUN-
05 +1 65 0 95 1.82 4 3 13m/s 01.5 03.6 0.7 K 9C 98% 2.33 ---MJSUN-
☀↑ 06 +1 73 0 100 1.86 4 3 11m/s 01.5 04.3 0.7 K 9C 97% 2.67 ---MJSUN-
07 +1 63 0 100 1.92 4 3 12m/s 01.5 04.3 0.7 K 9C 95% 2.67 ---MJSUN-
Sat – Sun 2026-09-12 – 09-13 Poor
☀ ↓19:53 ↑06:48 ☾ ↑08:30 ↓19:42 New moon: 2%
Period Time
Astronomical Twilight (Evening) 21:18 - 22:11
Deep Sky Darkness 22:11 - 04:31
Astronomical Twilight (Morning) 04:31 - 05:23
Period Duration
Astronomical Twilight (Evening) 0 hours 53 minutes
Deep Sky Darkness 6 hours 20 minutes
Total Imaging Time 8 hours 5 minutes
18 24 54 0 2.17 3 1 15m/s 08.2 10.5 0.7 K 17C 71% 1.00 LMV-J----
☀↓ 19 21 52 0 2.22 4 2 16m/s 08.2 10.5 0.6 K 16C 77% 1.00 LMV------
20 18 50 0 2.12 4 2 18m/s 08.2 10.5 0.6 K 15C 82% 1.00 --------P
21 15 51 0 1.97 4 2 19m/s 08.2 10.5 0.6 K 15C 85% 2.00 -----S-NP
22 9 53 13 1.65 3 1 19m/s 08.2 10.5 0.5 K 14C 87% 2.00 -----S-NP
23 3 57 33 1.59 4 2 18m/s 09.3 10.5 0.5 K 14C 87% 2.00 -----SUNP
00 +1 0 61 52 1.65 5 3 18m/s 03.6 04.9 0.8 K 14C 88% 2.33 -----SUNP
01 +1 0 67 69 1.75 4 3 18m/s 07.3 08.2 0.5 K 13C 90% 2.33 -----SUN-
02 +1 2 73 87 1.72 4 3 18m/s 02.5 04.9 0.7 K 13C 90% 2.33 ---M-SUN-
03 +1 8 80 99 2.10 4 2 18m/s 02.5 04.9 0.7 K 12C 90% 2.33 ---M-SUN-
04 +1 21 86 100 2.24 4 2 18m/s 02.5 04.9 0.7 K 13C 86% 2.33 ---MJSUN-
05 +1 38 92 100 2.43 4 2 23m/s 02.2 05.1 0.7 K 12C 87% 2.33 ---MJSUN-
☀↑ 06 +1 50 97 99 2.63 4 2 19m/s 02.3 04.8 0.7 K 12C 87% – ---MJSUN-
07 +1 53 99 75 2.67 3 1 18m/s 02.2 05.3 0.6 K 13C 86% – ---MJSUN-
Sun – Mon 2026-09-13 – 09-14 Poor
☀ ↓19:50 ↑06:50 ☾ ↑09:58 ↓19:47 New moon: 7%
Period Time
Astronomical Twilight (Evening) 21:14 - 22:07
Deep Sky Darkness 22:07 - 04:34
Astronomical Twilight (Morning) 04:34 - 05:26
Period Duration
Astronomical Twilight (Evening) 0 hours 53 minutes
Deep Sky Darkness 6 hours 27 minutes
Total Imaging Time 8 hours 12 minutes
18 52 93 0 2.35 4 3 12m/s 01.8 04.8 0.6 K 17C 77% – LMV-J----
☀↓ 19 64 92 0 2.32 4 3 14m/s 02.9 04.7 0.7 K 17C 82% – LMV------
20 78 91 0 2.42 4 2 11m/s 02.0 05.7 0.6 K 16C 86% – --------P
21 89 91 3 2.27 4 3 12m/s 03.0 05.6 0.7 K 16C 88% – -----S-NP
22 91 93 10 2.26 5 3 13m/s 03.0 04.9 0.7 K 16C 89% – -----S-NP
23 89 95 20 2.32 5 3 16m/s 02.9 04.8 0.7 K 15C 89% – -----SUNP
00 +1 86 96 31 2.31 5 3 19m/s 02.8 04.7 0.7 K 15C 89% – -----SUNP
01 +1 84 94 46 2.19 4 3 12m/s 02.5 04.9 0.6 K 15C 90% – -----SUN-
02 +1 82 91 64 2.42 5 4 16m/s 04.1 04.8 0.7 K 15C 89% – ---M-SUN-
03 +1 81 89 69 2.22 4 3 18m/s 03.6 04.9 0.6 K 15C 89% – ---M-SUN-
04 +1 82 90 47 2.05 4 3 15m/s 03.6 04.9 0.6 K 15C 88% – ---MJSUN-
05 +1 84 91 14 1.98 4 3 17m/s 03.5 04.8 0.6 K 14C 90% – ---MJSUN-
☀↑ 06 +1 86 92 0 1.79 5 3 15m/s 03.5 04.8 0.6 K 14C 90% – ---MJSUN-
07 +1 86 91 28 1.68 5 4 15m/s 03.5 04.1 0.7 K 15C 89% – ---MJSUN-
Mon – Tue 2026-09-14 – 09-15 Poor
☀ ↓19:47 ↑06:52 ☾ ↑11:26 ↓19:53 No moon: 13%
Period Time
Astronomical Twilight (Evening) 21:11 - 22:03
Deep Sky Darkness 22:03 - 04:36
Astronomical Twilight (Morning) 04:36 - 05:28
Period Duration
Astronomical Twilight (Evening) 0 hours 52 minutes
Deep Sky Darkness 6 hours 33 minutes
Total Imaging Time 8 hours 17 minutes
18 69 42 0 1.59 5 3 14m/s 09.1 10.3 0.8 K 17C 81% – LMV-J----
☀↓ 19 66 35 0 1.64 3 1 13m/s 08.0 10.2 0.8 K 16C 84% – LMV------
20 64 29 0 1.65 4 2 14m/s 09.0 10.2 1.2 K 16C 87% – --------P
21 63 23 0 1.70 3 1 8m/s 08.1 10.4 0.9 K 15C 91% – -----S-NP
22 66 15 0 1.71 4 2 12m/s 09.1 10.3 1.3 K 15C 93% – -----S-NP
23 71 6 0 1.80 3 1 13m/s 08.0 10.3 0.9 K 14C 94% – -----SUNP
00 +1 75 0 0 1.83 3 1 14m/s 08.0 10.2 1.0 K 14C 95% – -----SUNP
01 +1 76 0 0 1.81 3 1 13m/s 08.0 10.2 1.0 K 14C 97% – -----SUN-
02 +1 75 0 0 1.83 3 1 12m/s 07.9 10.2 1.0 K 13C 98% – ---M-SUN-
03 +1 75 0 0 1.74 3 1 13m/s 08.0 10.2 1.1 K 13C 99% – ---M-SUN-
04 +1 75 0 0 1.67 3 1 15m/s 08.0 10.3 1.2 K 13C 100% – ---MJSUN-
05 +1 74 0 0 1.65 3 1 15m/s 08.0 10.2 1.2 K 12C 99% – ---MJSUN-
☀↑ 06 +1 73 0 0 1.63 3 1 15m/s 07.9 10.1 1.2 K 12C 98% – ---MJSUN-
07 +1 72 0 0 1.58 3 1 16m/s 07.9 10.1 1.2 K 13C 95% – ---MJSUN-
Tue – Wed 2026-09-15 – 09-16 Poor
☀ ↓19:44 ↑06:54 ☾ ↑12:53 ↓20:03 No moon: 20%
Period Time
Astronomical Twilight (Evening) 21:08 - 22:00
Deep Sky Darkness 22:00 - 04:39
Astronomical Twilight (Morning) 04:39 - 05:30
Period Duration
Astronomical Twilight (Evening) 0 hours 52 minutes
Deep Sky Darkness 6 hours 39 minutes
Total Imaging Time 8 hours 22 minutes
18 61 74 100 1.97 4 2 3m/s 09.0 10.2 1.3 K 17C 71% – LMV-J----
☀↓ 19 51 78 100 1.73 4 3 5m/s 09.0 10.2 1.2 K 16C 76% – LMV------
☾↓ 20 39 85 100 1.56 4 3 7m/s 09.1 10.2 1.2 K 16C 80% – --------P
21 34 90 100 1.67 4 3 6m/s 09.1 10.3 1.2 K 15C 84% – -----S-NP
22 44 90 100 1.51 4 2 10m/s 09.1 10.3 1.2 K 15C 87% – -----SUNP
23 60 90 100 1.49 4 3 14m/s 09.0 10.2 1.0 K 14C 88% – -----SUNP
00 +1 62 12 100 1.54 4 3 23m/s 04.1 04.8 0.5 K 14C 74% – -----SUNP
01 +1 68 88 99 1.55 4 3 15m/s 09.1 10.3 1.0 K 14C 93% – -----SUN-
02 +1 60 87 97 1.58 4 2 18m/s 09.1 10.3 0.9 K 13C 95% – ---M-SUN-
03 +1 55 86 94 1.53 4 2 20m/s 09.1 10.3 0.8 K 13C 98% – ---M-SUN-
04 +1 55 87 84 1.72 4 2 18m/s 09.1 10.3 0.7 K 12C 99% – ---MJSUN-
05 +1 59 88 71 1.90 4 2 16m/s 09.1 10.3 0.8 K 12C 100% – ---MJSUN-
☀↑ 06 +1 64 90 66 1.92 4 2 15m/s 09.1 10.3 0.8 K 12C 99% – ---MJSUN-
07 +1 73 93 73 1.78 1 1 18m/s 09.1 10.3 0.7 K 12C 95% – ---MJSUN-
Night
Astronomical Dawn/Dusk
Nautical Dawn/Dusk
Civil Dawn/Dusk
Daytime