Images 01.07.2021 · Istanbul University Observatory Solar Observations

Solar Images Thursday, 1 July 2021

‹ 30.06.2021 2021 02.07.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 08:45 UT
Observer: Süleyman FİŞEK
g: 4
f: 28
R: 68
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1

Group 2 · CRO – 5

Group 3 · AX_ – 1

Group 4 · EKI – 21

RDS data file (.gzd)

[Gözlem]
Tarih=1.07.2021
Saat=08:45
Gözlemci=Süleyman FİŞEK
KontrolEden=Olcay PLEVNE
Durumaçısı=-2.45
Enlemaçısı=2.91
Boylamaçısı=46.54
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=19203
AyRasatNo=1
RasatÖnceki=30.06.2021
RasatSonraki=02.07.2021

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=28:6:22
RölatifSayı=68:26:42
01=AX_ 01 +26.499 -17.304 029.236 -1.000 0000 0 +26.499 -17.304 +26.499 -17.304
02=CRO 05 +17.385 -38.519 008.210 27.910 0000 0 +18.482 -36.757 +16.288 -40.281 +18.256 -36.957 +16.836 -39.640
03=AX_ 01 -25.234 +13.880 059.628 -1.000 0000 0 -25.234 +13.880 -25.234 +13.880
04=EKI 21 -17.617 +05.802 052.342 10.222 0000 0 -15.391 +11.437 -19.842 +00.166 -17.673 +08.485 -16.314 +00.926

20210701.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 →

2021/20210701_sf · SF · 15 frames · 321.4 MB · 09:10:13–09:29:58 UT

09:10:13 UT · 40 ms