Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 18 July 2022

‹ 17.07.2022 2022 19.07.2022 ›

Photosphere sunspot drawing and RDS evaluation

18.07.2022 photosphere drawing

High-resolution scan (3228 px)

Time
07:35 UT
Observer
Burçin TANIK
g
7
f
88
R
158
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CRO – 8Group 1 · CRO – 8 Group 2 · EHC – 21Group 2 · EHC – 21 Group 3 · DRC – 13Group 3 · DRC – 13 Group 4 · ?__ – 2Group 4 · ?__ – 2 Group 5 · ?__ – 6Group 5 · ?__ – 6 Group 6 · ERI – 25Group 6 · ERI – 25 Group 7 · EHI – 13Group 7 · EHI – 13
RDS data file (.gzd) 
[Gözlem]
Tarih=18.07.2022
Saat=07:35
Gözlemci=Burçin TANIK
KontrolEden=Talar YONTAN
Durumaçısı=5.04
Enlemaçısı=4.61
Boylamaçısı=44.66
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.5
Sırano=19494
AyRasatNo=17
RasatÖnceki=17.07.2022
RasatSonraki=19.07.2022

[Leke Grupları]
Grupsayısı=7:4:3
LekeSayısı=88:44:44
RölatifSayı=158:84:74
01=CRO 08 +24.683 +43.122 087.782 21.280 0000 0 +25.760 +45.589 +23.606 +40.656 +25.446 +44.801 +24.155 +41.438
02=EHC 21 +17.919 +11.281 055.941 26.427 0000 0 +21.128 +17.250 +14.710 +05.536 +15.749 +16.288 +20.928 +05.779
03=DRC 13 +15.190 -24.276 020.384 16.100 0000 0 +16.468 -19.697 +13.570 -28.854 +13.770 -21.670 +15.913 -28.565
04=?__ 02 +12.443 -30.390 014.270 +0.000 0000 0 +13.129 -29.794 +11.758 -30.986 +12.443 -30.294 +12.443 -30.486
05=?__ 06 -17.310 +75.130 119.673 +0.000 0000 0 -14.664 +81.921 -19.956 +68.106 -17.310 +81.537 -17.310 +68.722
06=ERI 25 -16.481 +33.850 077.745 30.568 0000 0 -13.718 +38.670 -19.245 +28.103 -14.909 +36.813 -19.450 +29.782
07=EHI 13 -06.145 -39.375 005.285 12.572 0000 0 -04.788 -33.957 -07.501 -44.792 -04.988 -34.157 -07.301 -44.592
20220718.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 →

2022/20220718_bto · BTO · 6 frames · 128.6 MB · 07:43:35–07:53:09 UT

07:43:35 UT · 30 ms 07:52:05 UT · 30 ms 07:49:20 UT · 30 ms 07:53:09 UT · 60 ms · over-exposed 07:46:15 UT · 60 ms · over-exposed 07:51:05 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.