Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 2 July 2024

‹ 01.07.2024 2024 03.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

02.07.2024 photosphere drawing

High-resolution scan (3230 px)

Time
10:30 UT
Observer
Korhan YELKENCİ
g
12
f
79
R
199
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · CAI – 6Group 2 · CAI – 6 Group 3 · CAI – 7Group 3 · CAI – 7 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · HS_ – 1Group 6 · HS_ – 1 Group 7 · HS_ – 1Group 7 · HS_ – 1 Group 8 · CSI – 4Group 8 · CSI – 4 Group 9 · BXI – 5Group 9 · BXI – 5 Group 10 · EAI – 12Group 10 · EAI – 12 Group 11 · EAI – 39Group 11 · EAI – 39 Group 12 · AX_ – 1Group 12 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=2.07.2024
Saat=10:30
Gözlemci=Korhan YELKENCİ
KontrolEden=Korhan YELKENCİ
Durumaçısı=-1.84
Enlemaçısı=3.05
Boylamaçısı=326.46
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.6
Sırano=20021
AyRasatNo=2
RasatÖnceki=01.07.2024
RasatSonraki=03.07.2024

[Leke Grupları]
Grupsayısı=12:5:7
LekeSayısı=79:16:63
RölatifSayı=199:66:133
01=AX_ 01 +26.626 +55.858 022.318 +0.000 0000 0 +26.918 +56.300 +26.333 +55.415 +26.626 +55.801 +26.626 +55.916
02=CAI 06 +04.121 +04.396 330.856 16.440 0000 0 +05.555 +08.723 +02.687 +00.680 +05.295 +08.461 +02.887 +00.268
03=CAI 07 +07.870 -35.405 291.550 +0.000 0000 0 +08.406 -31.497 +07.334 -39.313 +07.870 -31.997 +07.870 -38.813
04=HS_ 01 +16.488 -44.290 282.431 +0.000 0000 0 +17.283 -43.246 +15.693 -44.812 +16.488 -44.700 +16.488 -44.573
05=AX_ 01 +08.788 -46.632 279.828 -1.000 0000 0 +08.788 -46.632 +08.788 -46.632
06=HS_ 01 -10.621 +59.464 025.924 +0.000 0000 0 -10.600 +60.570 -11.235 +58.870 -10.621 +59.814 -10.621 +59.114
07=HS_ 01 -14.915 +59.150 025.475 +0.000 0000 0 -14.400 +59.706 -15.790 +58.323 -14.915 +59.342 -14.915 +58.958
08=CSI 04 -17.637 +48.110 014.471 17.529 0000 0 -16.427 +51.471 -18.847 +44.552 -16.627 +51.163 -18.647 +44.752
09=BXI 05 -26.290 +28.488 354.948 24.522 0000 0 -25.205 +30.700 -26.853 +26.906 -25.408 +29.838 -26.653 +27.106
10=EAI 12 -18.477 +27.228 353.688 16.108 0000 0 -16.402 +33.899 -20.552 +20.558 -16.652 +33.699 -20.352 +20.758
11=EAI 39 -03.730 +04.120 330.472 15.247 0000 0 -01.460 +11.911 -06.000 -03.886 -01.660 +11.711 -05.800 -03.686
12=AX_ 01 -14.943 -03.134 323.326 -1.000 0000 0 -14.943 -03.134 -14.943 -03.134
20240702.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 →

2024/20240702_ky · KY · 14 frames · 299.9 MB · 10:51:24–10:57:53 UT

10:52:24 UT · 30 ms 10:55:54 UT · 30 ms 10:55:23 UT · 60 ms · over-exposed 10:51:54 UT · 60 ms · over-exposed 10:54:53 UT · 70 ms · over-exposed 10:51:24 UT · 70 ms · over-exposed 10:57:53 UT 10:57:23 UT · 70 ms 10:56:24 UT · 60 ms 10:56:53 UT · 30 ms 10:54:24 UT 10:53:54 UT · 70 ms 10:52:54 UT · 60 ms 10:53:24 UT · 30 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.