Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 15 June 2023

‹ 14.06.2023 2023 16.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

15.06.2023 photosphere drawing

High-resolution scan (3233 px)

Time
08:35 UT
Observer
Burçin TANIK
g
9
f
42
R
132
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ?__ – 1Group 1 · ?__ – 1 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · ?__ – 1Group 4 · ?__ – 1 Group 5 · ?__ – 1Group 5 · ?__ – 1 Group 6 · AK_ – 2Group 6 · AK_ – 2 Group 7 · ESI – 19Group 7 · ESI – 19 Group 8 · EKI – 6Group 8 · EKI – 6 Group 9 · CRI – 10Group 9 · CRI – 10
RDS data file (.gzd) 
[Gözlem]
Tarih=15.06.2023
Saat=08:35
Gözlemci=Burçin TANIK
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=-9.77
Enlemaçısı=1
Boylamaçısı=343.33
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.6
Sırano=19735
AyRasatNo=13
RasatÖnceki=14.06.2023
RasatSonraki=16.06.2023

[Leke Grupları]
Grupsayısı=9:5:4
LekeSayısı=42:5:37
RölatifSayı=132:55:77
01=?__ 01 +25.642 +82.839 066.169 -1.000 0000 0 +25.642 +82.839 +25.642 +82.839
02=AX_ 01 +24.232 +68.204 051.534 -1.000 0000 0 +24.232 +68.204 +24.232 +68.204
03=AX_ 01 +15.321 -56.522 286.808 -1.000 0000 0 +15.321 -56.522 +15.321 -56.522
04=?__ 01 +15.788 -78.538 264.792 -1.000 0000 0 +15.788 -78.538 +15.788 -78.538
05=?__ 01 +10.138 -80.164 263.166 -1.000 0000 0 +10.138 -80.164 +10.138 -80.164
06=AK_ 02 -23.308 +30.175 013.505 +0.000 0000 0 -22.345 +31.589 -24.271 +28.761 +00.000 +00.000 +00.000 +00.000
07=ESI 19 -10.896 -32.147 311.183 12.660 0000 0 -08.879 -26.989 -12.914 -37.305 -10.800 -27.792 -12.100 -36.377
08=EKI 06 -14.936 -60.422 282.908 10.203 0000 0 -13.195 -55.133 -16.677 -65.711 -15.783 -56.144 -14.320 -64.302
09=CRI 10 -22.000 -63.798 279.532 31.990 0000 0 -19.389 -58.801 -24.612 -68.795 -23.587 -63.103 -21.220 -66.899
20230615.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 →

2023/20230615_bto · BTO · 6 frames · 128.6 MB · 08:38:01–08:45:02 UT

08:42:53 UT · 30 ms 08:38:01 UT · 30 ms 08:44:11 UT · 30 ms 08:39:02 UT · 60 ms · over-exposed 08:41:04 UT · 60 ms · over-exposed 08:45:02 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.