Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 2 September 2022

‹ 01.09.2022 2022 03.09.2022 ›

Photosphere sunspot drawing and RDS evaluation

02.09.2022 photosphere drawing

High-resolution scan (3229 px)

Time
08:45 UT
Observer
Olcay PLEVNE
g
3
f
16
R
46
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EKC – 10Group 1 · EKC – 10 Group 2 · BXI – 3Group 2 · BXI – 3 Group 3 · CSI – 3Group 3 · CSI – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=2.09.2022
Saat=08:45
Gözlemci=Olcay PLEVNE
KontrolEden=Talar YONTAN
Durumaçısı=21.36
Enlemaçısı=7.21
Boylamaçısı=155.86
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.1
Sırano=19539
AyRasatNo=2
RasatÖnceki=01.09.2022
RasatSonraki=03.09.2022

[Leke Grupları]
Grupsayısı=3:0:3
LekeSayısı=16:0:16
RölatifSayı=46:0:46
01=EKC 10 -22.620 +35.963 191.823 24.640 0000 0 -19.279 +42.189 -24.846 +29.737 -23.721 +40.942 -20.200 +32.836
02=BXI 03 -25.815 -49.770 106.900 +0.000 0000 0 -25.120 -47.936 -26.619 -51.604 -25.815 -48.136 -25.815 -51.404
03=CSI 03 -08.902 -64.497 091.363 +0.000 0000 0 -07.925 -62.220 -09.878 -66.973 -08.902 -62.222 -08.902 -66.773
20220902.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 →

2022/20220902_op · OP · 4 frames · 85.7 MB · 08:43:07–08:47:26 UT

08:44:44 UT · 40 ms 08:43:07 UT · 40 ms 08:46:23 UT · 60 ms · over-exposed 08:47:26 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.