Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 19 June 2024

‹ 18.06.2024 2024 20.06.2024 ›

Photosphere sunspot drawing and RDS evaluation

19.06.2024 photosphere drawing

High-resolution scan (3231 px)

Time
10:15 UT
Observer
Burçin TANIK
g
5
f
84
R
134
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EHI – 21Group 1 · EHI – 21 Group 2 · BXO – 2Group 2 · BXO – 2 Group 3 · FKC – 25Group 3 · FKC – 25 Group 4 · DAC – 34Group 4 · DAC – 34 Group 5 · ?__ – 2Group 5 · ?__ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=19.06.2024
Saat=10:15
Gözlemci=Burçin TANIK
KontrolEden=Olcay PLEVNE
Durumaçısı=-7.68
Enlemaçısı=1.57
Boylamaçısı=138.68
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.0
Sırano=20009
AyRasatNo=17
RasatÖnceki=18.06.2024
RasatSonraki=20.06.2024

[Leke Grupları]
Grupsayısı=5:2:3
LekeSayısı=84:23:61
RölatifSayı=134:43:91
01=EHI 21 +09.869 +22.900 160.770 19.440 0000 0 +12.473 +27.711 +07.265 +16.468 +10.942 +26.410 +08.587 +19.197
02=BXO 02 +14.502 -22.785 115.895 53.351 0000 0 +16.299 -21.238 +12.705 -24.333 +12.905 -21.693 +15.875 -23.904
03=FKC 25 -25.710 +28.460 167.140 13.408 0000 0 -21.938 +36.900 -28.205 +20.831 -23.945 +33.293 -26.484 +22.573
04=DAC 34 -14.337 +14.276 152.956 43.318 0000 0 -11.126 +18.283 -17.547 +10.269 -12.433 +16.450 -15.837 +12.429
05=?__ 02 -03.224 -78.934 059.746 +0.000 0000 0 -01.701 -77.705 -04.747 -80.162 -03.224 -78.205 -03.224 -79.662
20240619.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 →

2024/20240619_bto · BTO · 4 frames · 85.7 MB · 10:18:34–10:22:08 UT

10:21:15 UT · 20 ms 10:18:34 UT · 30 ms 10:22:08 UT · 50 ms · over-exposed 10:20:16 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.