Images 04.03.2021 · Istanbul University Observatory Solar Observations

Solar Images Thursday, 4 March 2021

‹ 03.03.2021 2021 05.03.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3233 px)

Time: 08:50 UT
Observer: Talar YONTAN
g: 2
f: 17
R: 37
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DRO – 7

Group 2 · DAO – 10

RDS data file (.gzd)

[Gözlem]
Tarih=4.03.2021
Saat=08:50
Gözlemci=Talar YONTAN
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=-22.36
Enlemaçısı=-7.25
Boylamaçısı=178.84
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=0.0
Sırano=19137
AyRasatNo=4
RasatÖnceki=03.03.2021
RasatSonraki=5.03.2021

[Leke Grupları]
Grupsayısı=2:0:2
LekeSayısı=17:0:17
RölatifSayı=37:0:37
01=DRO 07 -31.314 +16.929 195.769 00.208 0000 0 -30.473 +19.982 -32.155 +13.875 -31.333 +19.213 -31.314 +14.750
02=DAO 10 -18.774 -25.887 152.953 04.959 0000 0 -17.614 -22.814 -19.934 -28.960 -19.229 -23.509 -18.774 -28.760

20210304.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 →

2021/20210304_ty · TY · 16 frames · 342.8 MB · 09:06:08–09:44:07 UT

09:18:04 UT · 40 ms