Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 12 May 2022

‹ 11.05.2022 2022 14.05.2022 ›

Photosphere sunspot drawing and RDS evaluation

12.05.2022 photosphere drawing

High-resolution scan (3230 px)

Time
07:45 UT
Observer
Süleyman FİŞEK
g
6
f
85
R
145
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 11Group 1 · BXI – 11 Group 2 · BXO – 5Group 2 · BXO – 5 Group 3 · FAI – 33Group 3 · FAI – 33 Group 4 · EKC – 33Group 4 · EKC – 33 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · ?__ – 2Group 6 · ?__ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=12.05.2022
Saat=07:45
Gözlemci=Süleyman FİŞEK
KontrolEden=Talar YONTAN
Durumaçısı=-21.68
Enlemaçısı=-3
Boylamaçısı=211.21
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.4
Sırano=19430
AyRasatNo=10
RasatÖnceki=11.05.2022
RasatSonraki=14.05.2022

[Leke Grupları]
Grupsayısı=6:2:4
LekeSayısı=85:16:69
RölatifSayı=145:36:109
01=BXI 11 +14.682 +25.500 236.260 +0.000 0000 0 +15.711 +27.357 +13.654 +22.743 +14.682 +27.157 +14.682 +22.943
02=BXO 05 +15.440 -30.222 180.988 +0.000 0000 0 +15.845 -28.250 +15.340 -32.420 +15.440 -28.637 +15.440 -31.807
03=FAI 33 -33.641 +20.964 232.174 32.534 0000 0 -27.966 +29.440 -39.316 +12.488 -29.455 +26.981 -37.578 +14.510
04=EKC 33 -23.578 -28.912 182.298 00.400 0000 0 -20.112 -21.190 -27.450 -36.806 -23.719 -21.870 -23.712 -31.993
05=AX_ 01 -28.229 -68.621 142.589 -1.000 0000 0 -28.229 -68.621 -28.229 -68.621
06=?__ 02 -13.340 -82.766 128.444 +0.000 0000 0 -12.960 -79.479 -13.720 -86.530 -13.340 -79.741 -13.340 -85.791
20220512.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 →

2022/20220512_sf · SF · 8 frames · 171.4 MB · 08:18:14–08:33:54 UT

08:19:50 UT · 30 ms 08:33:54 UT · 30 ms 08:28:25 UT · 30 ms 08:24:56 UT · 30 ms 08:26:03 UT · 60 ms · over-exposed 08:21:06 UT · 60 ms · over-exposed 08:30:29 UT · 60 ms · over-exposed 08:18:14 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.