Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 23 July 2024

‹ 22.07.2024 2024 24.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

23.07.2024 photosphere drawing

High-resolution scan (3226 px)

Time
07:05 UT
Observer
Burçin TANIK
g
12
f
49
R
169
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HR_ – 1Group 1 · HR_ – 1 Group 2 · HR_ – 1Group 2 · HR_ – 1 Group 3 · HH_ – 1Group 3 · HH_ – 1 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · HH_ – 1Group 5 · HH_ – 1 Group 6 · CSI – 5Group 6 · CSI – 5 Group 7 · EKC – 20Group 7 · EKC – 20 Group 8 · HS_ – 1Group 8 · HS_ – 1 Group 9 · CAI – 7Group 9 · CAI – 7 Group 10 · ?__ – 9Group 10 · ?__ – 9 Group 11 · AX_ – 1Group 11 · AX_ – 1 Group 12 · AX_ – 1Group 12 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=23.07.2024
Saat=07:05
Gözlemci=Burçin TANIK
KontrolEden=Ergün EGE
Durumaçısı=7.41
Enlemaçısı=5.1
Boylamaçısı=50.45
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.3
Sırano=20040
AyRasatNo=21
RasatÖnceki=22.07.2024
RasatSonraki=24.07.2024

[Leke Grupları]
Grupsayısı=12:4:8
LekeSayısı=49:4:45
RölatifSayı=169:44:125
01=HR_ 01 +03.481 +23.781 074.231 +0.000 0000 0 +03.822 +24.229 +03.140 +23.334 +03.481 +23.729 +03.481 +23.833
02=HR_ 01 +17.394 +09.497 059.947 +0.000 0000 0 +17.797 +10.440 +16.990 +08.951 +17.394 +09.741 +17.394 +09.252
03=HH_ 01 +03.253 -68.226 342.224 +0.000 0000 0 +04.100 -66.429 +02.406 -70.220 +03.253 -66.830 +03.253 -69.621
04=AX_ 01 +02.512 -75.525 334.925 -1.000 0000 0 +02.512 -75.525 +02.512 -75.525
05=HH_ 01 -05.900 +72.435 122.885 +0.000 0000 0 -04.446 +74.257 -05.572 +70.612 -05.900 +73.757 -05.900 +71.112
06=CSI 05 -08.248 +44.561 095.110 +0.000 0000 0 -06.742 +48.505 -09.755 +40.616 -08.248 +48.305 -08.248 +40.816
07=EKC 20 -10.217 +31.935 082.385 13.483 0000 0 -07.838 +38.679 -12.597 +25.191 -09.324 +35.375 -11.535 +26.109
08=HS_ 01 -17.132 +14.819 065.269 +0.000 0000 0 -15.971 +15.997 -18.294 +13.641 -17.132 +15.497 -17.132 +14.141
09=CAI 07 -11.382 -30.234 020.216 18.623 0000 0 -09.627 -26.803 -13.137 -33.666 -12.376 -27.887 -10.784 -32.618
10=?__ 09 -12.835 -39.815 010.635 +0.000 0000 0 -10.837 -37.779 -14.833 -41.852 -12.835 -38.278 -12.835 -41.351
11=AX_ 01 -03.905 -74.310 336.419 -1.000 0000 0 -03.905 -74.310 -03.905 -74.310
12=AX_ 01 -10.950 -83.129 327.321 -1.000 0000 0 -10.950 -83.129 -10.950 -83.129
20240723.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 →

2024/20240723_bto · BTO · 5 frames · 107.1 MB · 07:11:36–07:40:46 UT

07:39:56 UT · 40 ms 07:38:00 UT · 30 ms 07:11:36 UT · 60 ms · over-exposed 07:13:06 UT · 70 ms · over-exposed 07:40:46 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.