Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 12 July 2022

‹ 11.07.2022 2022 13.07.2022 ›

Photosphere sunspot drawing and RDS evaluation

12.07.2022 photosphere drawing

High-resolution scan (3230 px)

Time
08:19 UT
Observer
H.ÇAKMAK=T.Y.
g
6
f
78
R
138
Seeing
4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · EAI – 22Group 3 · EAI – 22 Group 4 · EAC – 10Group 4 · EAC – 10 Group 5 · EKI – 34Group 5 · EKI – 34 Group 6 · CAI – 10Group 6 · CAI – 10
RDS data file (.gzd) 
[Gözlem]
Tarih=12.07.2022
Saat=08:19
Gözlemci=H.ÇAKMAK=T.Y.
KontrolEden=Özgecan ÖNALTAŞ
Durumaçısı=2.4
Enlemaçısı=4.04
Boylamaçısı=123.65
Boylamfark=2
GKalite=4
GDurum=G.T
Kuzeyaçısı=-0.3
Sırano=19488
AyRasatNo=11
RasatÖnceki=11.07.2022
RasatSonraki=13.07.2022

[Leke Grupları]
Grupsayısı=6:4:2
LekeSayısı=78:34:44
RölatifSayı=138:74:64
01=AX_ 01 +29.248 +63.889 187.539 -1.000 0000 0 +29.248 +63.889 +29.248 +63.889
02=AX_ 01 +15.671 +31.780 155.430 -1.000 0000 0 +15.671 +31.780 +15.671 +31.780
03=EAI 22 +17.150 +09.800 132.730 05.796 0000 0 +21.900 +15.822 +13.220 +02.339 +14.828 +14.149 +15.923 +03.294
04=EAC 10 +17.600 -67.784 055.866 09.122 0000 0 +19.471 -62.245 +14.542 -73.323 +16.615 -64.294 +15.391 -71.940
05=EKI 34 -15.970 -02.322 121.328 15.218 0000 0 -12.958 +04.626 -18.982 -09.270 -14.868 +02.640 -17.684 -08.351
06=CAI 10 -16.972 -49.136 074.514 15.106 0000 0 -14.770 -44.343 -19.173 -53.928 -15.728 -45.673 -17.691 -52.970
20220712.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 →

2022/20220712_hc · HC · 15 frames · 321.4 MB · 08:06:26–09:07:34 UT

08:12:24 UT · 30 ms 08:08:05 UT · 30 ms 08:33:23 UT · 30 ms 08:53:20 UT · 30 ms 09:04:35 UT · 30 ms 08:46:37 UT · 30 ms 08:31:47 UT · 30 ms 08:06:26 UT · 50 ms · over-exposed 08:13:28 UT · 50 ms · over-exposed 09:07:34 UT · 50 ms · over-exposed 08:54:16 UT · 50 ms · over-exposed 08:30:57 UT · 50 ms · over-exposed 08:37:17 UT · 50 ms 08:36:18 UT · 30 ms 08:34:23 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.