Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 15 October 2024

‹ 14.10.2024 2024 16.10.2024 ›

Photosphere sunspot drawing and RDS evaluation

15.10.2024 photosphere drawing

High-resolution scan (3220 px)

Time
09:25 UT
Observer
Olcay PLEVNE
g
6
f
27
R
87
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 3Group 1 · BXI – 3 Group 2 · ?__ – 4Group 2 · ?__ – 4 Group 3 · DAC – 11Group 3 · DAC – 11 Group 4 · CAI – 5Group 4 · CAI – 5 Group 5 · BXI – 2Group 5 · BXI – 2 Group 6 · DSI – 2Group 6 · DSI – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=15.10.2024
Saat=09:25
Gözlemci=Olcay PLEVNE
KontrolEden=Burçin TANIK
Durumaçısı=26.14
Enlemaçısı=5.83
Boylamaçısı=19.62
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=20119
AyRasatNo=12
RasatÖnceki=14.10.2024
RasatSonraki=16.10.2024

[Leke Grupları]
Grupsayısı=6:1:5
LekeSayısı=27:3:24
RölatifSayı=87:13:74
01=BXI 03 +15.661 +53.317 072.937 +0.000 0000 0 +16.654 +57.148 +14.669 +49.487 +15.661 +56.948 +15.661 +49.687
02=?__ 04 -07.423 +74.832 094.452 +0.000 0000 0 -04.963 +79.616 -09.883 +70.480 -07.423 +78.900 -07.423 +70.764
03=DAC 11 -07.845 +28.300 047.650 +0.000 0000 0 -03.270 +30.858 -12.421 +25.201 -07.845 +30.658 -07.845 +25.401
04=CAI 05 -07.452 +19.291 038.911 +0.000 0000 0 -04.751 +22.507 -10.152 +16.760 -07.452 +22.307 -07.452 +16.276
05=BXI 02 -14.498 -56.993 322.627 +0.000 0000 0 -13.491 -54.184 -15.506 -59.802 -14.498 -54.384 -14.498 -59.602
06=DSI 02 -07.520 -63.780 315.840 +0.000 0000 0 -05.170 -58.586 -09.870 -68.975 -07.520 -58.786 -07.520 -68.775
20241015.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 →

2024/20241015_op · OP · 4 frames · 85.7 MB · 09:23:50–09:29:32 UT

09:25:05 UT · 40 ms 09:23:50 UT · 40 ms 09:29:32 UT · 50 ms · over-exposed 09:27:51 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.