Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 17 July 2024

‹ 16.07.2024 2024 18.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

17.07.2024 photosphere drawing

High-resolution scan (3231 px)

Time
07:15 UT
Observer
Burçin TANIK
g
13
f
84
R
214
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAI – 12Group 1 · CAI – 12 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · CAI – 6Group 3 · CAI – 6 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · BXI – 4Group 5 · BXI – 4 Group 6 · BXI – 7Group 6 · BXI – 7 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · FAC – 17Group 8 · FAC – 17 Group 9 · CKI – 12Group 9 · CKI – 12 Group 10 · CRI – 5Group 10 · CRI – 5 Group 11 · AX_ – 2Group 11 · AX_ – 2 Group 12 · EAC – 15Group 12 · EAC – 15 Group 13 · HR_ – 1Group 13 · HR_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=17.07.2024
Saat=07:15
Gözlemci=Burçin TANIK
KontrolEden=Süleyman FİŞEK
Durumaçısı=4.82
Enlemaçısı=4.57
Boylamaçısı=129.74
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.1
Sırano=20034
AyRasatNo=15
RasatÖnceki=16.07.2024
RasatSonraki=18.07.2024

[Leke Grupları]
Grupsayısı=13:7:6
LekeSayısı=84:32:52
RölatifSayı=214:102:112
01=CAI 12 +11.808 +38.540 167.794 20.840 0000 0 +13.800 +40.491 +10.537 +35.618 +11.170 +39.735 +12.379 +36.154
02=AX_ 01 +16.349 +30.773 160.513 -1.000 0000 0 +16.349 +30.773 +16.349 +30.773
03=CAI 06 +15.649 +16.459 146.199 28.658 0000 0 +17.226 +19.229 +14.720 +13.689 +14.602 +17.911 +16.654 +14.152
04=AX_ 01 +21.242 -37.337 092.403 -1.000 0000 0 +21.242 -37.337 +21.242 -37.337
05=BXI 04 +24.380 -50.221 079.519 10.270 0000 0 +25.136 -46.350 +22.941 -54.930 +23.141 -46.941 +24.345 -53.766
06=BXI 07 +01.348 -58.621 071.119 +0.000 0000 0 +03.224 -55.353 -00.528 -61.889 +01.348 -55.553 +01.348 -61.689
07=AX_ 01 +17.540 -70.283 059.457 -1.000 0000 0 +17.540 -70.283 +17.540 -70.283
08=FAC 17 -11.957 +31.909 161.649 28.123 0000 0 -06.997 +41.584 -16.917 +22.234 -15.210 +38.703 -08.482 +25.952
09=CKI 12 -22.358 +23.781 153.521 53.830 0000 0 -18.567 +27.620 -26.148 +20.501 -20.300 +25.134 -25.948 +20.874
10=CRI 05 -19.801 -23.490 106.691 +0.000 0000 0 -18.545 -18.107 -21.570 -27.990 -19.801 -18.307 -19.801 -27.790
11=AX_ 02 -33.364 -27.524 102.216 -1.000 0000 0 -33.364 -27.524 -33.364 -27.524
12=EAC 15 -08.295 -37.755 091.985 +0.000 0000 0 -05.922 -32.265 -10.668 -43.245 -08.295 -32.465 -08.295 -43.450
13=HR_ 01 -17.742 -63.253 066.487 +0.000 0000 0 -16.992 -61.844 -18.492 -64.663 -17.742 -62.343 -17.742 -64.162
20240717.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 →

2024/20240717_bto · BTO · 4 frames · 85.7 MB · 07:21:36–07:26:37 UT

07:26:37 UT · 40 ms 07:23:24 UT · 30 ms 07:24:21 UT · 60 ms 07:21:36 UT · 60 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.