Images 29.06.2021 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 29 June 2021

‹ 28.06.2021 2021 30.06.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3228 px)

Time: 07:15 UT
Observer: Oğuzhan ÇAKIR
g: 3
f: 45
R: 75
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HR_ – 1

Group 2 · CSI – 12

Group 3 · EKI – 32

RDS data file (.gzd)

[Gözlem]
Tarih=29.06.2021
Saat=07:15
Gözlemci=Oğuzhan ÇAKIR
KontrolEden=Olcay PLEVNE
Durumaçısı=-3.38
Enlemaçısı=2.68
Boylamaçısı=73.84
Boylamfark=3
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.4
Sırano=19201
AyRasatNo=21
RasatÖnceki=28.06.2021
RasatSonraki=30.06.2021

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=45:1:44
RölatifSayı=75:11:64
01=HR_ 01 +15.648 -66.686 007.154 +0.000 0000 0 +16.508 -65.778 +14.788 -67.594 +15.648 -66.278 +15.648 -67.940
02=CSI 12 -26.302 -17.642 056.198 10.827 0000 0 -24.976 -14.143 -27.629 -21.141 -25.750 -14.852 -26.864 -20.692
03=EKI 32 -18.731 -23.259 050.581 08.230 0000 0 -16.640 -17.751 -21.399 -28.766 -19.860 -18.567 -17.745 -28.121

20210629.gzd

Chromosphere (H-α) FITS frames

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 →

2021/20210629_oc · OC · 10 frames · 214.3 MB · 07:33:08–07:50:37 UT

07:33:08 UT · 30 ms