Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 1 February 2024

‹ 30.01.2024 2024 02.02.2024 ›

Photosphere sunspot drawing and RDS evaluation

01.02.2024 photosphere drawing

High-resolution scan (3241 px)

Time
08:00 UT
Observer
Burçin TANIK
g
8
f
40
R
120
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · CAI – 11Group 2 · CAI – 11 Group 3 · AX_ – 2Group 3 · AX_ – 2 Group 4 · DKI – 18Group 4 · DKI – 18 Group 5 · AX_ – 3Group 5 · AX_ – 3 Group 6 · AX_ – 2Group 6 · AX_ – 2 Group 7 · BXO – 2Group 7 · BXO – 2 Group 8 · HH_ – 1Group 8 · HH_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=1.02.2024
Saat=08:00
Gözlemci=Burçin TANIK
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=-12.07
Enlemaçısı=-5.99
Boylamaçısı=174.84
Boylamfark=2
GKalite=3
GDurum=G.T , B.A
Kuzeyaçısı=-0.5
Sırano=19909
AyRasatNo=1
RasatÖnceki=30.01.2024
RasatSonraki=02.02.2024

[Leke Grupları]
Grupsayısı=8:4:4
LekeSayısı=40:32:8
RölatifSayı=120:72:48
01=AX_ 01 +22.610 -17.105 157.735 -1.000 0000 0 +22.610 -17.105 +22.610 -17.105
02=CAI 11 +06.543 -21.388 153.452 40.601 0000 0 +08.731 -18.849 +04.355 -23.927 +04.815 -19.481 +08.220 -23.228
03=AX_ 02 +16.790 -38.871 135.969 +0.000 0000 0 +16.470 -38.639 +15.687 -39.102 +16.790 -39.139 +16.790 -38.602
04=DKI 18 +20.320 -43.724 131.116 13.763 0000 0 +22.163 -39.801 +18.476 -47.647 +19.266 -40.779 +20.804 -47.760
05=AX_ 03 -35.182 +01.700 176.540 +0.000 0000 0 -34.820 +02.541 -36.282 +00.859 +00.000 +00.000 +00.000 +00.000
06=AX_ 02 -10.870 -31.162 143.678 +0.000 0000 0 -10.343 -30.717 -11.396 -31.607 -10.870 -31.217 -10.870 -31.107
07=BXO 02 -03.288 -57.308 117.532 +0.000 0000 0 -02.850 -54.710 -04.491 -59.907 -03.288 -54.910 -03.288 -59.707
08=HH_ 01 -16.470 -71.312 103.528 +0.000 0000 0 -14.893 -69.977 -17.201 -72.647 -16.470 -70.477 -16.470 -72.147
20240201.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 →

2024/20240201_bto · BTO · 6 frames · 128.6 MB · 08:10:12–08:16:51 UT

08:14:31 UT · 30 ms 08:16:51 UT · 40 ms 08:11:21 UT · 30 ms 08:12:55 UT · 70 ms · over-exposed 08:15:31 UT · 70 ms · over-exposed 08:10:12 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.