Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 26 June 2024

‹ 25.06.2024 2024 28.06.2024 ›

Photosphere sunspot drawing and RDS evaluation

26.06.2024 photosphere drawing

High-resolution scan (3235 px)

Time
07:55 UT
Observer
Burçin TANIK
g
10
f
62
R
162
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · HH_ – 2Group 2 · HH_ – 2 Group 3 · CHI – 6Group 3 · CHI – 6 Group 4 · DAI – 20Group 4 · DAI – 20 Group 5 · DSO – 2Group 5 · DSO – 2 Group 6 · CSI – 5Group 6 · CSI – 5 Group 7 · CRI – 8Group 7 · CRI – 8 Group 8 · BXI – 4Group 8 · BXI – 4 Group 9 · EHI – 10Group 9 · EHI – 10 Group 10 · ?__ – 3Group 10 · ?__ – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=26.06.2024
Saat=07:55
Gözlemci=Burçin TANIK
KontrolEden=Ergün EGE
Durumaçısı=-4.6
Enlemaçısı=2.37
Boylamaçısı=47.31
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.8
Sırano=20016
AyRasatNo=24
RasatÖnceki=25.06.2024
RasatSonraki=28.06.2024

[Leke Grupları]
Grupsayısı=10:2:8
LekeSayısı=62:4:58
RölatifSayı=162:24:138
01=AX_ 02 +19.812 -08.980 039.212 +0.000 0000 0 +20.710 -07.387 +18.913 -08.810 +19.812 -08.768 +19.812 -09.191
02=HH_ 02 +24.821 -21.124 026.186 +0.000 0000 0 +25.737 -19.384 +23.905 -22.865 +24.821 -19.884 +24.821 -22.365
03=CHI 06 -15.560 +16.700 063.317 21.499 0000 0 -13.850 +20.246 -17.280 +11.767 -16.650 +18.200 -13.828 +12.508
04=DAI 20 -05.378 +04.780 052.900 +0.000 0000 0 -03.904 +09.331 -06.852 +00.229 -05.378 +09.131 -05.378 +00.429
05=DSO 02 -12.446 -19.830 028.227 +0.000 0000 0 -10.111 -17.618 -14.781 -20.548 -12.446 -17.818 -12.446 -20.348
06=CSI 05 -17.657 -31.992 015.318 16.630 0000 0 -16.368 -29.492 -18.947 -34.492 -17.360 -30.970 -18.520 -33.500
07=CRI 08 -18.533 -41.373 005.937 29.641 0000 0 -16.886 -38.830 -20.180 -43.916 -17.832 -39.829 -19.817 -43.320
08=BXI 04 -26.781 -50.750 356.560 20.607 0000 0 -25.573 -48.313 -27.988 -53.186 -27.479 -48.930 -26.192 -52.357
09=EHI 10 -18.620 -51.313 355.997 18.660 0000 0 -15.715 -45.338 -20.409 -57.288 -19.531 -48.560 -16.906 -55.859
10=?__ 03 -04.000 -77.710 329.600 +0.000 0000 0 -01.910 -71.955 -06.890 -83.465 -04.000 -72.455 -04.000 -82.965
20240626.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 →

2024/20240626_btö · BTÖ · 5 frames · 107.1 MB · 07:59:58–08:03:25 UT

08:01:47 UT · 20 ms 08:03:25 UT · 40 ms 08:00:58 UT · 30 ms 08:02:34 UT · 50 ms · over-exposed 07:59:58 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.