Images 18.07.2023 · Istanbul University Observatory Solar Observations

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 06:45 UT
Observer: Süleyman FİŞEK
g: 10
f: 78
R: 178
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 3

Group 2 · DHI – 4

Group 3 · DAC – 17

Group 4 · EKC – 22

Group 5 · DAI – 19

Group 6 · CKI – 5

Group 7 · AX_ – 1

Group 8 · HA_ – 3

Group 9 · AX_ – 1

Group 10 · DHI – 3

RDS data file (.gzd)

[Gözlem]
Tarih=18.07.2023
Saat=06:45
Gözlemci=Süleyman FİŞEK
KontrolEden=Olcay PLEVNE
Durumaçısı=4.92
Enlemaçısı=4.59
Boylamaçısı=267.57
Boylamfark=3
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.4
Sırano=19766
AyRasatNo=17
RasatÖnceki=17.07.2023
RasatSonraki=19.07.2023

[Leke Grupları]
Grupsayısı=10:5:5
LekeSayısı=78:65:13
RölatifSayı=178:115:63
01=BXI 03 +12.916 +55.291 322.861 20.890 0000 0 +14.145 +58.490 +11.687 +52.533 +13.711 +57.584 +11.894 +52.816
02=DHI 04 +23.157 +00.839 268.409 09.314 0000 0 +23.779 +09.640 +19.990 +01.684 +24.639 -06.899 +22.690 +05.710
03=DAC 17 +23.840 -04.925 262.645 +0.000 0000 0 +26.218 -01.908 +21.463 -07.942 +23.840 -02.108 +23.840 -07.742
04=EKC 22 +06.860 -23.130 244.440 20.202 0000 0 +10.280 -17.810 +03.440 -29.179 +04.638 -17.686 +07.994 -26.856
05=DAI 19 +24.270 -40.554 227.160 72.616 0000 0 +27.105 -37.210 +21.435 -43.899 +22.543 -39.370 +26.282 -40.209
06=CKI 05 -21.501 +74.338 341.908 +0.000 0000 0 -19.296 +80.285 -23.706 +68.390 -21.501 +80.850 -21.501 +68.590
07=AX_ 01 -15.519 +21.999 289.569 -1.000 0000 0 -15.519 +21.999 -15.519 +21.999
08=HA_ 03 -07.223 -25.510 242.519 +0.000 0000 0 -06.499 -24.461 -07.947 -25.641 -07.223 -25.420 -07.223 -25.600
09=AX_ 01 -26.327 -72.120 195.558 -1.000 0000 0 -26.327 -72.120 -26.327 -72.120
10=DHI 03 -09.980 -73.270 194.543 05.949 0000 0 -07.719 -68.250 -10.477 -77.804 -09.100 -70.166 -09.648 -76.293

20230718.gzd

Chromosphere (H-α) FITS frames

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 →

2023/20230718_sf · SF · 23 frames · 492.8 MB · 07:08:02–07:33:56 UT