Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 14 September 2023

‹ 13.09.2023 2023 15.09.2023 ›

Photosphere sunspot drawing and RDS evaluation

14.09.2023 photosphere drawing

High-resolution scan (3231 px)

Time
07:35 UT
Observer
Burçin TANIK
g
8
f
60
R
140
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EKC – 8Group 1 · EKC – 8 Group 2 · EAC – 11Group 2 · EAC – 11 Group 3 · DSC – 23Group 3 · DSC – 23 Group 4 · HS_ – 3Group 4 · HS_ – 3 Group 5 · HH_ – 1Group 5 · HH_ – 1 Group 6 · CSI – 10Group 6 · CSI – 10 Group 7 · AX_ – 2Group 7 · AX_ – 2 Group 8 · BXO – 2Group 8 · BXO – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=14.09.2023
Saat=07:35
Gözlemci=Burçin TANIK
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=23.85
Enlemaçısı=7.22
Boylamaçısı=220.47
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.8
Sırano=19821
AyRasatNo=13
RasatÖnceki=13.09.2023
RasatSonraki=15.09.2023

[Leke Grupları]
Grupsayısı=8:5:3
LekeSayısı=60:46:14
RölatifSayı=140:96:44
01=EKC 08 +16.550 +57.831 278.301 +0.000 0000 0 +17.804 +65.122 +14.306 +50.539 +16.550 +64.922 +16.550 +50.739
02=EAC 11 +22.963 +26.795 247.265 +0.000 0000 0 +24.124 +32.270 +21.803 +21.321 +22.963 +32.700 +22.963 +21.521
03=DSC 23 +10.543 -16.366 204.104 12.707 0000 0 +12.381 -11.503 +08.706 -21.229 +09.963 -12.629 +11.739 -20.533
04=HS_ 03 +08.840 -23.958 196.512 +0.000 0000 0 +10.410 -23.900 +07.639 -24.907 +08.840 -23.955 +08.840 -23.962
05=HH_ 01 +27.400 -48.318 172.152 +0.000 0000 0 +28.395 -46.728 +26.406 -49.908 +27.400 -47.228 +27.400 -49.408
06=CSI 10 -17.761 +34.306 254.776 16.478 0000 0 -15.738 +38.935 -19.783 +29.678 -16.773 +38.355 -19.610 +30.595
07=AX_ 02 -12.768 -11.938 208.532 +0.000 0000 0 -12.146 -10.538 -13.389 -13.338 -12.768 -11.380 -12.768 -12.838
08=BXO 02 -07.251 -16.204 204.266 +0.000 0000 0 -06.949 -14.595 -07.553 -17.813 -07.251 -15.950 -07.251 -17.313
20230914.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 →

2023/20230914_bto · BTO · 7 frames · 150.0 MB · 07:36:30–11:54:51 UT

07:48:26 UT · 30 ms 07:45:34 UT · 40 ms 07:44:36 UT · 30 ms 11:54:51 UT · 60 ms · over-exposed 07:43:28 UT · 60 ms · over-exposed 07:47:07 UT · 60 ms · over-exposed 07:36:30 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.