Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 8 October 2023

‹ 07.10.2023 2023 10.10.2023 ›

Photosphere sunspot drawing and RDS evaluation

08.10.2023 photosphere drawing

High-resolution scan (3243 px)

Time
07:35 UT
Observer
Burçin TANIK
g
8
f
66
R
146
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EKC – 22Group 1 · EKC – 22 Group 2 · FSI – 19Group 2 · FSI – 19 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · HA_ – 4Group 6 · HA_ – 4 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · CAI – 17Group 8 · CAI – 17
RDS data file (.gzd) 
[Gözlem]
Tarih=8.10.2023
Saat=07:35
Gözlemci=Burçin TANIK
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=26.24
Enlemaçısı=6.36
Boylamaçısı=263.72
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.8
Sırano=19842
AyRasatNo=7
RasatÖnceki=07.10.2023
RasatSonraki=10.10.2023

[Leke Grupları]
Grupsayısı=8:5:3
LekeSayısı=66:44:22
RölatifSayı=146:94:52
01=EKC 22 +18.186 +36.900 299.810 09.370 0000 0 +20.460 +29.499 +16.326 +42.681 +17.405 +40.428 +19.500 +30.683
02=FSI 19 +12.671 +35.873 299.593 14.945 0000 0 +16.222 +24.911 +09.119 +46.836 +10.477 +44.466 +15.134 +26.697
03=AX_ 01 +07.760 -40.430 223.290 -1.000 0000 0 +07.760 -40.430 +07.760 -40.430
04=AX_ 01 +12.359 -49.345 214.375 -1.000 0000 0 +12.359 -49.345 +12.359 -49.345
05=AX_ 01 +21.130 -72.844 190.876 -1.000 0000 0 +21.130 -72.844 +21.130 -72.844
06=HA_ 04 -09.797 +18.331 282.510 +0.000 0000 0 -08.978 +19.319 -10.616 +17.343 -09.797 +18.819 -09.797 +17.843
07=AX_ 01 -10.264 -20.476 243.244 -1.000 0000 0 -10.264 -20.476 -10.264 -20.476
08=CAI 17 -09.566 -33.105 230.615 38.588 0000 0 -07.345 -29.722 -11.787 -36.488 -10.584 -31.570 -08.172 -34.597
20231008.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 →

2023/20231008_bto · BTO · 6 frames · 128.6 MB · 07:37:46–07:42:53 UT

07:42:06 UT · 30 ms 07:40:10 UT · 30 ms 07:41:12 UT · 40 ms 07:39:15 UT · 60 ms · over-exposed 07:37:46 UT · 60 ms · over-exposed 07:42:53 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.