Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 25 September 2022

‹ 24.09.2022 2022 26.09.2022 ›

Photosphere sunspot drawing and RDS evaluation

25.09.2022 photosphere drawing

High-resolution scan (3230 px)

Time
07:20 UT
Observer
Özgecan ÖNALTAŞ
g
6
f
151
R
211
Seeing
4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 4Group 1 · AX_ – 4 Group 2 · ESC – 25Group 2 · ESC – 25 Group 3 · HS_ – 1Group 3 · HS_ – 1 Group 4 · CSI – 23Group 4 · CSI – 23 Group 5 · DSC – 47Group 5 · DSC – 47 Group 6 · FSC – 51Group 6 · FSC – 51
RDS data file (.gzd) 
[Gözlem]
Tarih=25.09.2022
Saat=07:20
Gözlemci=Özgecan ÖNALTAŞ
KontrolEden=Talar YONTAN
Durumaçısı=25.45
Enlemaçısı=6.96
Boylamaçısı=212.96
Boylamfark=3
GKalite=4
GDurum=
Kuzeyaçısı=0.0
Sırano=19560
AyRasatNo=23
RasatÖnceki=24.09.2022
RasatSonraki=26.09.2022

[Leke Grupları]
Grupsayısı=6:2:4
LekeSayısı=151:29:122
RölatifSayı=211:49:162
01=AX_ 04 +19.945 -06.135 206.825 +0.000 0000 0 +21.100 -05.630 +18.790 -07.208 +00.000 +00.000 +00.000 +00.000
02=ESC 25 +16.398 -58.779 154.181 02.954 0000 0 +18.600 -52.327 +14.735 -65.231 +16.120 -53.753 +16.476 -62.783
03=HS_ 01 -25.340 +78.289 291.249 +0.000 0000 0 -24.473 +79.781 -25.596 +76.797 -25.340 +79.281 -25.340 +77.297
04=CSI 23 -12.485 +26.195 239.155 06.253 0000 0 -11.110 +30.633 -13.958 +21.757 -12.132 +29.994 -12.888 +23.740
05=DSC 47 -15.471 -05.454 207.506 14.660 0000 0 -12.632 -00.203 -18.309 -10.706 -14.458 -01.244 -16.657 -10.600
06=FSC 51 -23.263 -24.394 188.566 08.293 0000 0 -21.160 -16.330 -25.511 -32.458 -22.383 -17.420 -24.314 -30.793
20220925.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 →

2022/20220925_oot · OOT · 7 frames · 150.0 MB · 07:43:06–09:05:11 UT

09:05:11 UT · 30 ms 07:49:09 UT · 30 ms 07:44:30 UT · 30 ms 09:04:07 UT · 60 ms · over-exposed 07:43:06 UT · 60 ms · over-exposed 07:50:52 UT · 60 ms · over-exposed 07:48:12 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.