Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 2 July 2023

‹ 01.07.2023 2023 03.07.2023 ›

Photosphere sunspot drawing and RDS evaluation

02.07.2023 photosphere drawing

High-resolution scan (3229 px)

Time
09:07 UT
Observer
Burçin TANIK
g
7
f
99
R
169
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · FKC – 52Group 1 · FKC – 52 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · AX_ – 5Group 3 · AX_ – 5 Group 4 · CRI – 6Group 4 · CRI – 6 Group 5 · DSI – 10Group 5 · DSI – 10 Group 6 · DAI – 12Group 6 · DAI – 12 Group 7 · DAI – 13Group 7 · DAI – 13
RDS data file (.gzd) 
[Gözlem]
Tarih=2.07.2023
Saat=09:07
Gözlemci=Burçin TANIK
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=-2.21
Enlemaçısı=2.96
Boylamaçısı=118.01
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=19751
AyRasatNo=2
RasatÖnceki=01.07.2023
RasatSonraki=03.07.2023

[Leke Grupları]
Grupsayısı=7:2:5
LekeSayısı=99:53:46
RölatifSayı=169:73:96
01=FKC 52 +16.629 +46.917 164.927 16.854 0000 0 +20.974 +55.742 +12.284 +38.920 +18.358 +52.670 +14.532 +39.919
02=HS_ 01 +22.650 -55.152 062.858 +0.000 0000 0 +23.438 -54.311 +21.861 -55.993 +22.650 -54.811 +22.650 -55.493
03=AX_ 05 -15.581 -07.450 110.965 +0.000 0000 0 -14.399 -05.631 -16.762 -08.459 +00.000 +00.000 +00.000 +00.000
04=CRI 06 -05.944 -19.440 098.570 23.760 0000 0 -04.786 -17.408 -07.102 -21.472 -06.455 -17.804 -05.275 -20.488
05=DSI 10 -05.845 -29.460 088.964 17.883 0000 0 -04.660 -26.297 -07.310 -31.795 -05.920 -26.618 -06.580 -31.238
06=DAI 12 -21.660 -50.351 067.659 10.586 0000 0 -19.534 -46.320 -22.599 -54.382 -21.606 -47.462 -20.478 -53.510
07=DAI 13 -13.588 -54.335 063.675 45.103 0000 0 -10.675 -50.757 -16.502 -57.914 -15.158 -53.382 -12.850 -56.448
20230702.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 →

2023/20230702_bto · BTO · 6 frames · 128.6 MB · 09:16:31–09:22:26 UT

09:20:21 UT · 30 ms 09:19:26 UT · 30 ms 09:22:26 UT · 30 ms 09:21:18 UT · 70 ms · over-exposed 09:16:31 UT · 70 ms · over-exposed 09:18:19 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.