Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 1 November 2023

‹ 31.10.2023 2023 03.11.2023 ›

Photosphere sunspot drawing and RDS evaluation

01.11.2023 photosphere drawing

High-resolution scan (3224 px)

Time
11:00 UT
Observer
Olcay PLEVNE
g
6
f
53
R
113
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 10Group 1 · BXI – 10 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · BXI – 8Group 3 · BXI – 8 Group 4 · DAI – 26Group 4 · DAI – 26 Group 5 · BXI – 5Group 5 · BXI – 5 Group 6 · ?__ – 3Group 6 · ?__ – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=1.11.2023
Saat=11:00
Gözlemci=Olcay PLEVNE
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=24.46
Enlemaçısı=4.39
Boylamaçısı=305.29
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19861
AyRasatNo=1
RasatÖnceki=31.10.2023
RasatSonraki=03.11.2023

[Leke Grupları]
Grupsayısı=6:3:3
LekeSayısı=53:19:34
RölatifSayı=113:49:64
01=BXI 10 +21.489 +30.601 335.891 +0.000 0000 0 +23.444 +34.370 +19.535 +27.165 +21.489 +33.837 +21.489 +27.365
02=AX_ 01 +11.200 +10.723 316.130 -1.000 0000 0 +11.200 +10.723 +11.200 +10.723
03=BXI 08 +16.619 -05.200 300.900 +0.000 0000 0 +18.392 -01.393 +14.846 -09.600 +16.619 -01.593 +16.619 -08.806
04=DAI 26 -16.805 +18.595 323.885 +0.000 0000 0 -14.700 +23.531 -18.910 +13.660 -16.805 +23.331 -16.805 +13.860
05=BXI 05 -13.723 -05.287 300.300 +0.000 0000 0 -12.983 -03.127 -14.463 -07.446 -13.723 -03.628 -13.723 -06.946
06=?__ 03 -13.581 -77.484 227.806 +0.000 0000 0 -11.718 -73.556 -15.444 -81.412 -13.581 -74.560 -13.581 -80.912
20231101.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 →

2023/20231101_op · OP · 4 frames · 85.7 MB · 11:12:03–11:16:31 UT

11:12:03 UT · 40 ms 11:13:39 UT · 40 ms 11:16:31 UT · 70 ms · over-exposed 11:15:20 UT · 80 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.