Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 3 February 2025

‹ 31.01.2025 2025 04.02.2025 ›

Photosphere sunspot drawing and RDS evaluation

03.02.2025 photosphere drawing

High-resolution scan (3235 px)

Time
10:00 UT
Observer
Burçin TANIK
g
7
f
85
R
155
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CRI – 15Group 1 · CRI – 15 Group 2 · CAI – 13Group 2 · CAI – 13 Group 3 · DAI – 13Group 3 · DAI – 13 Group 4 · DSI – 10Group 4 · DSI – 10 Group 5 · AX_ – 2Group 5 · AX_ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=3.02.2025
Saat=10:00
Gözlemci=Burçin TANIK
KontrolEden=Olcay PLEVNE
Durumaçısı=-13.21
Enlemaçısı=-6.19
Boylamaçısı=356.68
Boylamfark=1
GKalite=3
GDurum=Y.B , H.S
Kuzeyaçısı=-0.5
Sırano=20186
AyRasatNo=1
RasatÖnceki=31.01.2025
RasatSonraki=04.02.2025

[Leke Grupları]
Grupsayısı=7:6:1
LekeSayısı=85:83:2
RölatifSayı=155:143:12
01=CRI 15 +17.192 +05.189 001.869 39.534 0000 0 +19.731 +07.494 +14.653 +02.883 +15.812 +06.367 +18.650 +03.635
02=CAI 13 +11.816 +04.781 001.461 49.928 0000 0 +14.280 +07.307 +09.351 +02.256 +10.590 +05.501 +12.828 +03.169
03=DAI 13 +11.731 -06.150 350.530 11.931 0000 0 +13.572 -02.405 +09.891 -09.895 +12.160 -04.980 +11.380 -08.735
04=DSI 10 +15.713 -07.856 348.824 +0.000 0000 0 +16.606 -03.430 +14.820 -12.282 +15.713 -03.630 +15.713 -12.820
05=AX_ 02 +20.452 -13.700 343.610 +0.000 0000 0 +20.762 -12.456 +20.141 -13.685 +20.452 -13.585 +20.452 -13.814
06=EKC 30 +07.311 -18.965 337.715 +0.000 0000 0 +09.857 -13.393 +04.765 -24.537 +07.311 -13.593 +07.311 -24.337
07=AX_ 02 -16.283 +24.648 021.328 -1.000 0000 0 -16.283 +24.648 -16.283 +24.648
20250203.gzd

Chromosphere (H-α) FITS frames

No chromosphere observation for this day.

Coronado H-α animations from frame sequences

No Coronado observation for this day.