Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 15 May 2022

‹ 14.05.2022 2022 16.05.2022 ›

Photosphere sunspot drawing and RDS evaluation

15.05.2022 photosphere drawing

High-resolution scan (3230 px)

Time
07:30 UT
Observer
Oğuzhan ÇAKIR
g
8
f
86
R
166
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 2Group 1 · BXO – 2 Group 2 · CSI – 9Group 2 · CSI – 9 Group 3 · CRI – 6Group 3 · CRI – 6 Group 4 · BXO – 2Group 4 · BXO – 2 Group 5 · AX_ – 2Group 5 · AX_ – 2 Group 6 · ESC – 40Group 6 · ESC – 40 Group 7 · AX_ – 4Group 7 · AX_ – 4 Group 8 · EAC – 21Group 8 · EAC – 21
RDS data file (.gzd) 
[Gözlem]
Tarih=15.05.2022
Saat=07:30
Gözlemci=Oğuzhan ÇAKIR
KontrolEden=Talar YONTAN
Durumaçısı=-20.89
Enlemaçısı=-2.66
Boylamaçısı=171.68
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.5
Sırano=19432
AyRasatNo=12
RasatÖnceki=14.05.2022
RasatSonraki=16.05.2022

[Leke Grupları]
Grupsayısı=8:3:5
LekeSayısı=86:17:69
RölatifSayı=166:47:119
01=BXO 02 +15.412 -46.620 125.600 02.690 0000 0 +16.420 -43.673 +14.403 -49.566 +15.538 -44.310 +15.354 -49.147
02=CSI 09 +12.476 -63.670 108.100 03.162 0000 0 +13.990 -60.179 +10.962 -67.161 +12.808 -60.940 +12.476 -66.961
03=CRI 06 +20.944 -65.953 105.727 00.853 0000 0 +21.969 -61.300 +19.919 -70.875 +20.985 -61.740 +20.862 -70.180
04=BXO 02 -29.172 +66.667 238.347 +0.000 0000 0 -28.836 +68.219 -29.507 +65.114 -29.172 +67.719 -29.172 +65.615
05=AX_ 02 -33.890 +57.170 228.697 +0.000 0000 0 -33.557 +57.620 -34.223 +56.414 -33.890 +57.273 -33.890 +57.670
06=ESC 40 -23.375 +11.331 183.110 10.799 0000 0 -19.626 +18.595 -27.124 +04.680 -22.123 +17.343 -24.555 +04.475
07=AX_ 04 -27.673 -25.661 146.190 +0.000 0000 0 -26.886 -25.152 -28.461 -26.170 -27.673 -25.652 -27.673 -25.670
08=EAC 21 -15.515 -49.469 122.211 07.444 0000 0 -12.582 -41.518 -18.448 -57.419 -14.471 -42.378 -16.286 -56.414
20220515.gzd

Chromosphere (H-α) FITS frames

H-α

The images are made automatically with a fixed, gentle rule: uneven illumination and most of the limb darkening are removed, and the brightness is shown on a linear scale (no sharpening); prominences get their own scale outside the limb. Frames are ordered by sharpness (seeing); frames without the Sun (darks, bias) come last. Method →

2022/20220515_oc · OC · 15 frames · 321.4 MB · 08:17:09–08:32:55 UT

08:32:13 UT · 30 ms 08:27:46 UT · 30 ms 08:17:09 UT · 30 ms 08:32:55 UT · 60 ms · over-exposed 08:18:45 UT · 60 ms · over-exposed 08:28:35 UT · 60 ms · over-exposed 08:26:56 UT · 60 ms 08:26:01 UT · 60 ms 08:25:14 UT · 60 ms 08:24:32 UT · 30 ms 08:23:52 UT · 30 ms 08:22:25 UT · 30 ms 08:21:40 UT 08:20:50 UT 08:19:50 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.