Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 7 September 2024

‹ 06.09.2024 2024 08.09.2024 ›

Photosphere sunspot drawing and RDS evaluation

07.09.2024 photosphere drawing

High-resolution scan (3230 px)

Time
07:15 UT
Observer
Ergün EGE
g
8
f
72
R
152
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 2Group 1 · HS_ – 2 Group 2 · FAI – 17Group 2 · FAI – 17 Group 3 · CSI – 11Group 3 · CSI – 11 Group 4 · DSI – 17Group 4 · DSI – 17 Group 5 · HS_ – 2Group 5 · HS_ – 2 Group 6 · AX_ – 3Group 6 · AX_ – 3 Group 7 · FSI – 19Group 7 · FSI – 19 Group 8 · AX_ – 1Group 8 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=7.09.2024
Saat=07:15
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=22.62
Enlemaçısı=7.25
Boylamaçısı=162.33
Boylamfark=3
GKalite=3
GDurum=B.A , Y.B
Kuzeyaçısı=-0.4
Sırano=20085
AyRasatNo=6
RasatÖnceki=06.09.2024
RasatSonraki=08.09.2024

[Leke Grupları]
Grupsayısı=8:1:7
LekeSayısı=72:2:70
RölatifSayı=152:12:140
01=HS_ 02 +16.800 -49.734 112.596 +0.000 0000 0 +17.981 -48.240 +14.178 -51.228 +16.800 -48.740 +16.800 -50.728
02=FAI 17 -09.789 +52.621 214.951 +0.000 0000 0 -07.958 +60.936 -11.619 +44.307 -09.789 +60.736 -09.789 +44.507
03=CSI 11 -09.376 +10.183 172.513 +0.000 0000 0 -07.240 +12.834 -11.727 +07.532 -09.376 +12.634 -09.376 +07.732
04=DSI 17 -21.150 -07.560 155.274 +0.000 0000 0 -17.334 -02.965 -24.966 -11.147 -21.150 -03.165 -21.150 -10.947
05=HS_ 02 -21.217 -13.837 148.493 +0.000 0000 0 -20.309 -13.327 -22.124 -14.348 -21.217 -13.826 -21.217 -13.847
06=AX_ 03 -10.390 -16.314 146.160 +0.000 0000 0 -09.959 -15.134 -10.821 -17.495 -10.390 -15.633 -10.390 -16.994
07=FSI 19 -24.699 -26.806 135.524 +0.000 0000 0 -20.257 -17.546 -29.142 -36.660 -24.699 -17.746 -24.699 -35.866
08=AX_ 01 -11.317 -50.250 112.800 +0.000 0000 0 -11.710 -49.672 -11.564 -50.828 -11.317 -50.172 -11.317 -50.328
20240907.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 →

2024/20240907_ee · EE · 6 frames · 128.6 MB · 07:17:58–07:31:51 UT

07:29:10 UT · 20 ms 07:31:51 UT · 30 ms 07:19:58 UT · 40 ms 07:21:35 UT · 50 ms · over-exposed 07:17:58 UT · 20 ms 07:18:43 UT · 30 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.