Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 5 January 2023

‹ 03.01.2023 2023 06.01.2023 ›

Photosphere sunspot drawing and RDS evaluation

05.01.2023 photosphere drawing

High-resolution scan (3235 px)

Time
09:30 UT
Observer
Burçin TANIK
g
9
f
69
R
159
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HR_ – 1Group 1 · HR_ – 1 Group 2 · CSO – 13Group 2 · CSO – 13 Group 3 · HA_ – 12Group 3 · HA_ – 12 Group 4 · DRI – 16Group 4 · DRI – 16 Group 5 · AX_ – 2Group 5 · AX_ – 2 Group 6 · HA_ – 5Group 6 · HA_ – 5 Group 7 · CAI – 9Group 7 · CAI – 9
RDS data file (.gzd) 
[Gözlem]
Tarih=5.01.2023
Saat=09:30
Gözlemci=Burçin TANIK
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=0.06
Enlemaçısı=-3.47
Boylamaçısı=307.1
Boylamfark=1
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.4
Sırano=19633
AyRasatNo=4
RasatÖnceki=03.01.2023
RasatSonraki=06.01.2023

[Leke Grupları]
Grupsayısı=9:3:6
LekeSayısı=69:26:43
RölatifSayı=159:56:103
01=HR_ 01 +18.622 +66.903 014.300 -1.000 0000 0 +19.297 +67.895 +17.947 +65.911
02=CSO 13 +16.550 -00.388 306.712 04.710 0000 0 +17.897 +03.875 +15.202 -04.650 +16.336 -03.385 +15.881 +03.200
03=HA_ 12 +20.795 -01.300 305.800 -1.000 0000 0 +22.200 -00.159 +19.389 -02.441
04=DRI 16 -17.710 +25.550 332.650 22.430 0000 0 -15.981 +29.580 -19.439 +22.420 -19.239 +28.749 -16.560 +22.242
05=AX_ 02 -16.999 -01.500 305.600 +0.000 0000 0 -16.218 -00.430 -17.781 -02.958 -16.999 -00.736 -16.999 -02.264
06=HA_ 05 -15.870 -25.957 281.143 -1.000 0000 0 -15.219 -24.600 -16.521 -27.314
07=CAI 09 -17.972 -27.806 279.294 23.728 0000 0 -16.427 -25.611 -19.517 -30.200 -18.700 -26.490 -17.371 -29.516
08=AX_ 05 -21.725 -31.992 275.108 -1.000 0000 0 -20.949 -31.216 -22.500 -32.768
09=?__ 06 -16.717 -78.876 228.224 -1.000 0000 0 -15.900 -76.759 -18.345 -80.993
20230105.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 →

2023/20230105_bto · BTO · 6 frames · 128.6 MB · 09:33:42–09:38:41 UT

09:36:47 UT · 40 ms 09:37:46 UT · 40 ms 09:33:42 UT · 70 ms · over-exposed 09:34:56 UT · 80 ms · over-exposed 09:35:52 UT · 90 ms · over-exposed 09:38:41 UT · 90 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.