Images 27.07.2022 · Istanbul University Observatory Solar Observations

Solar Images Wednesday, 27 July 2022

‹ 26.07.2022 2022 28.07.2022 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3224 px)

Time: 09:45 UT
Observer: Olcay PLEVNE
g: 5
f: 17
R: 67
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 4

Group 2 · AX_ – 2

Group 3 · AX_ – 1

Group 4 · HS_ – 4

Group 5 · BXI – 6

RDS data file (.gzd)

[Gözlem]
Tarih=27.07.2022
Saat=09:45
Gözlemci=Olcay PLEVNE
KontrolEden=Burçin TANIK
Durumaçısı=8.91
Enlemaçısı=5.41
Boylamaçısı=284.4
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.4
Sırano=19503
AyRasatNo=26
RasatÖnceki=26.07.2022
RasatSonraki=28.07.2022

[Leke Grupları]
Grupsayısı=5:1:4
LekeSayısı=17:4:13
RölatifSayı=67:14:53
01=BXI 04 +19.587 -65.705 218.695 +0.000 0000 0 +20.358 -62.100 +18.816 -69.410 +19.587 -62.550 +19.587 -68.860
02=AX_ 02 -17.859 +56.400 340.800 +0.000 0000 0 -17.161 +57.357 -18.556 +55.443 -17.859 +56.857 -17.859 +55.943
03=AX_ 01 -22.228 +37.899 322.299 -1.000 0000 0 -22.228 +37.899 -22.228 +37.899
04=HS_ 04 -25.150 +17.509 301.909 +0.000 0000 0 -23.202 +18.575 -26.829 +16.444 -25.150 +18.750 -25.150 +16.944
05=BXI 06 -15.260 +02.782 287.182 +0.000 0000 0 -14.710 +05.570 -15.810 +00.508 -15.260 +04.813 -15.260 +00.751

20220727.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 →

2022/20220727_op · OP · 4 frames · 85.7 MB · 09:44:34–09:49:50 UT

09:44:34 UT · 30 ms

09:47:53 UT · 30 ms

09:48:57 UT · 60 ms · over-exposed

09:49:50 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.