Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 9 May 2023

‹ 08.05.2023 2023 13.05.2023 ›

Photosphere sunspot drawing and RDS evaluation

09.05.2023 photosphere drawing

High-resolution scan (3229 px)

Time
11:20 UT
Observer
Hikmet ÇAKMAK
g
10
f
72
R
172
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 6Group 1 · BXI – 6 Group 2 · DAC – 24Group 2 · DAC – 24 Group 3 · EKI – 25Group 3 · EKI – 25 Group 4 · BXI – 8Group 4 · BXI – 8 Group 5 · BXO – 2Group 5 · BXO – 2 Group 6 · ?__ – 1Group 6 · ?__ – 1 Group 7 · ?__ – 1Group 7 · ?__ – 1 Group 8 · HS_ – 1Group 8 · HS_ – 1 Group 9 · AX_ – 2Group 9 · AX_ – 2 Group 10 · AX_ – 2Group 10 · AX_ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=9.05.2023
Saat=11:20
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Olcay PLEVNE
Durumaçısı=-22.44
Enlemaçısı=-3.34
Boylamaçısı=111.35
Boylamfark=0
GKalite=3
GDurum=G.T , B.A , H.S
Kuzeyaçısı=-0.3
Sırano=19708
AyRasatNo=7
RasatÖnceki=08.05.2023
RasatSonraki=13.05.2023

[Leke Grupları]
Grupsayısı=10:7:3
LekeSayısı=72:67:5
RölatifSayı=172:137:35
01=BXI 06 +08.569 +39.870 151.220 19.107 0000 0 +09.523 +42.970 +07.615 +37.642 +07.940 +41.603 +09.110 +38.222
02=DAC 24 +15.370 +28.257 139.607 19.589 0000 0 +17.477 +34.142 +12.596 +22.372 +13.595 +29.465 +15.733 +23.443
03=EKI 25 +08.273 +07.267 118.617 20.730 0000 0 +11.687 +13.227 +04.858 +01.306 +09.204 +11.415 +06.604 +04.524
04=BXI 08 +10.590 -07.869 103.481 08.848 0000 0 +11.253 -05.780 +08.865 -10.660 +10.200 -05.715 +09.498 -10.233
05=BXO 02 +21.344 -56.163 055.187 +0.000 0000 0 +21.647 -53.854 +21.400 -58.472 +21.344 -54.354 +21.344 -57.972
06=?__ 01 +12.312 -76.414 034.936 +0.000 0000 0 +13.267 -74.996 +11.357 -77.831 +12.312 -75.496 +12.312 -77.332
07=?__ 01 +18.405 -81.170 030.333 +0.000 0000 0 +19.154 -79.513 +17.655 -82.522 +18.405 -80.165 +18.405 -82.174
08=HS_ 01 -07.457 +13.962 125.312 +0.000 0000 0 -06.412 +15.218 -08.501 +12.707 -07.457 +14.717 -07.457 +13.207
09=AX_ 02 -08.732 -07.775 103.575 +0.000 0000 0 -07.456 -06.783 -10.800 -08.767 +00.000 +00.000 +00.000 +00.000
10=AX_ 02 -10.840 -64.723 046.627 +0.000 0000 0 -09.284 -63.261 -10.884 -66.184 -10.840 -63.461 -10.840 -65.984
20230509.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 →

2023/20230509_hc · HC · 1 frames · 21.4 MB · 11:26:51 UT

11:26:51 UT · 30 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.