Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 8 August 2023

‹ 07.08.2023 2023 10.08.2023 ›

Photosphere sunspot drawing and RDS evaluation

08.08.2023 photosphere drawing

High-resolution scan (3228 px)

Time
07:45 UT
Observer
H.ÇAKMAK-K.Y.
g
10
f
23
R
123
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ?__ – 4Group 1 · ?__ – 4 Group 2 · HA_ – 1Group 2 · HA_ – 1 Group 3 · HA_ – 1Group 3 · HA_ – 1 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · CAO – 4Group 5 · CAO – 4 Group 6 · HR_ – 1Group 6 · HR_ – 1 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · AX_ – 6Group 8 · AX_ – 6 Group 9 · HS_ – 3Group 9 · HS_ – 3 Group 10 · AX_ – 1Group 10 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=8.08.2023
Saat=07:45
Gözlemci=H.ÇAKMAK-K.Y.
KontrolEden=Burçin TANIK
Durumaçısı=13.49
Enlemaçısı=6.24
Boylamaçısı=349.24
Boylamfark=2
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.5
Sırano=19787
AyRasatNo=8
RasatÖnceki=07.08.2023
RasatSonraki=10.08.2023

[Leke Grupları]
Grupsayısı=10:6:4
LekeSayısı=23:12:11
RölatifSayı=123:72:51
01=?__ 04 +19.772 +77.552 066.792 +0.000 0000 0 +22.127 +80.502 +17.417 +74.603 +19.772 +80.200 +19.772 +75.103
02=HA_ 01 +09.857 +52.746 041.986 +0.000 0000 0 +10.521 +53.464 +09.193 +52.290 +09.857 +52.833 +09.857 +52.659
03=HA_ 01 +23.702 +42.504 031.744 +0.000 0000 0 +24.649 +43.430 +22.756 +41.578 +23.702 +42.930 +23.702 +42.780
04=AX_ 01 +21.519 -05.168 344.720 -1.000 0000 0 +21.519 -05.168 +21.519 -05.168
05=CAO 04 +14.116 -19.609 329.631 19.364 0000 0 +15.428 -17.682 +12.804 -21.537 +13.536 -18.132 +14.591 -21.135
06=HR_ 01 +19.570 -44.751 304.489 +0.000 0000 0 +19.960 -44.498 +19.180 -45.400 +19.570 -44.800 +19.570 -44.702
07=AX_ 01 -13.273 +63.370 052.610 -1.000 0000 0 -13.273 +63.370 -13.273 +63.370
08=AX_ 06 -20.172 +46.457 035.697 +0.000 0000 0 -18.875 +47.795 -21.470 +45.119 +00.000 +00.000 +00.000 +00.000
09=HS_ 03 -22.748 -07.247 341.993 +0.000 0000 0 -20.244 -05.521 -25.253 -08.972 -22.748 -06.220 -22.748 -08.472
10=AX_ 01 -14.428 -62.163 287.770 -1.000 0000 0 -14.428 -62.163 -14.428 -62.163
20230808.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 →

2023/20230808_hc · HC · 5 frames · 107.1 MB · 07:48:20–08:20:03 UT

08:14:22 UT · 30 ms 07:56:29 UT · 30 ms 07:48:20 UT · 30 ms 08:20:03 UT · 30 ms 08:15:09 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.