Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 29 September 2022

‹ 28.09.2022 2022 30.09.2022 ›

Photosphere sunspot drawing and RDS evaluation

29.09.2022 photosphere drawing

High-resolution scan (3235 px)

Time
06:25 UT
Observer
Korhan YELKENCİ
g
4
f
35
R
75
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CSO – 7Group 1 · CSO – 7 Group 2 · HA_ – 1Group 2 · HA_ – 1 Group 3 · DAO – 5Group 3 · DAO – 5 Group 4 · CAI – 22Group 4 · CAI – 22
RDS data file (.gzd) 
[Gözlem]
Tarih=29.09.2022
Saat=06:25
Gözlemci=Korhan YELKENCİ
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=25.81
Enlemaçısı=6.81
Boylamaçısı=160.68
Boylamfark=3
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=0.1
Sırano=19564
AyRasatNo=27
RasatÖnceki=28.09.2022
RasatSonraki=30.09.2022

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=35:8:27
RölatifSayı=75:28:47
01=CSO 07 +16.245 -01.783 158.897 03.578 0000 0 +17.718 +03.575 +14.772 -07.141 +16.486 +00.778 +16.942 -06.534
02=HA_ 01 +27.569 -54.772 105.908 +0.000 0000 0 +28.513 -53.203 +26.624 -56.340 +27.569 -53.703 +27.569 -55.840
03=DAO 05 -16.300 +46.500 206.685 19.701 0000 0 -14.683 +49.224 -17.916 +42.787 -15.504 +48.109 -17.290 +43.112
04=CAI 22 -23.448 +28.360 188.716 02.800 0000 0 -21.995 +35.438 -24.901 +20.634 -23.983 +32.939 -23.607 +22.529
20220929.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 →

2022/20220929_ky · KY · 21 frames · 449.9 MB · 06:56:44–07:12:57 UT

07:10:57 UT · 30 ms 07:06:54 UT · 30 ms 07:05:51 UT · 60 ms · over-exposed 06:57:46 UT · 30 ms 07:10:25 UT · 50 ms 06:57:15 UT · 50 ms 07:06:22 UT · 50 ms 06:56:44 UT · 60 ms 07:09:54 UT · 60 ms · over-exposed 07:11:27 UT · 60 ms 07:11:57 UT · 50 ms 07:12:27 UT · 30 ms 07:09:23 UT 07:07:24 UT · 60 ms 07:07:54 UT · 50 ms 07:08:24 UT · 30 ms 07:08:54 UT 06:58:16 UT · 60 ms 06:58:46 UT · 50 ms 06:59:16 UT · 30 ms 07:12:57 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.