Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 20 July 2022

‹ 19.07.2022 2022 21.07.2022 ›

Photosphere sunspot drawing and RDS evaluation

20.07.2022 photosphere drawing

High-resolution scan (3230 px)

Time
09:00 UT
Observer
B.TANIK=Ö.Ö.
g
9
f
63
R
153
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · EHI – 8Group 2 · EHI – 8 Group 3 · BXI – 7Group 3 · BXI – 7 Group 4 · CRI – 12Group 4 · CRI – 12 Group 5 · BXI – 10Group 5 · BXI – 10 Group 6 · DRO – 5Group 6 · DRO – 5 Group 7 · ERI – 9Group 7 · ERI – 9 Group 8 · ESI – 9Group 8 · ESI – 9 Group 9 · ?__ – 1Group 9 · ?__ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=20.07.2022
Saat=09:00
Gözlemci=B.TANIK=Ö.Ö.
KontrolEden=Özgecan ÖNALTAŞ
Durumaçısı=5.94
Enlemaçısı=4.8
Boylamaçısı=17.41
Boylamfark=2
GKalite=3
GDurum=G.T , B.A , K.T
Kuzeyaçısı=-0.3
Sırano=19496
AyRasatNo=19
RasatÖnceki=19.07.2022
RasatSonraki=21.07.2022

[Leke Grupları]
Grupsayısı=9:6:3
LekeSayısı=63:44:19
RölatifSayı=153:104:49
01=AX_ 02 +22.638 +70.603 088.130 +0.000 0000 0 +23.475 +72.940 +21.801 +69.112 +22.638 +71.894 +22.638 +69.312
02=EHI 08 +17.894 +38.413 055.823 22.174 0000 0 +20.610 +44.470 +15.177 +32.779 +16.118 +43.354 +20.100 +33.519
03=BXI 07 +14.677 +05.515 022.925 31.344 0000 0 +16.170 +07.282 +13.337 +03.747 +13.740 +06.694 +15.318 +04.103
04=CRI 12 +14.746 -05.164 012.246 40.441 0000 0 +18.210 -00.699 +11.281 -09.629 +12.410 -02.256 +17.457 -08.644
05=BXI 10 +11.756 -20.281 357.129 21.484 0000 0 +13.610 -17.769 +10.451 -22.794 +12.293 -18.547 +10.778 -22.399
06=DRO 05 +09.778 -39.851 337.559 17.929 0000 0 +11.400 -36.562 +08.515 -43.140 +08.857 -37.299 +10.602 -42.702
07=ERI 09 -14.878 +61.860 079.270 11.626 0000 0 -13.324 +67.930 -16.431 +55.790 -14.200 +66.560 -16.450 +56.573
08=ESI 09 -07.220 -11.289 006.121 14.719 0000 0 -05.441 -05.983 -08.999 -16.594 -06.310 -06.867 -08.799 -16.394
09=?__ 01 -23.282 -72.310 305.100 +0.000 0000 0 -22.194 -69.519 -24.371 -75.100 -23.282 -70.200 -23.282 -74.600
20220720.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 →

2022/20220720_bto · BTO · 5 frames · 107.1 MB · 09:09:47–09:18:51 UT

09:15:43 UT · 30 ms 09:17:47 UT · 30 ms 09:16:41 UT · 60 ms · over-exposed 09:18:51 UT · 60 ms · over-exposed 09:09:47 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.