Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 29 May 2024

‹ 27.05.2024 2024 30.05.2024 ›

Photosphere sunspot drawing and RDS evaluation

29.05.2024 photosphere drawing

High-resolution scan (3231 px)

Time
09:05 UT
Observer
Burçin TANIK
g
8
f
74
R
154
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DAI – 10Group 1 · DAI – 10 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · EKC – 36Group 3 · EKC – 36 Group 4 · BXI – 6Group 4 · BXI – 6 Group 5 · BXO – 3Group 5 · BXO – 3 Group 6 · AX_ – 2Group 6 · AX_ – 2 Group 7 · AX_ – 3Group 7 · AX_ – 3 Group 8 · EKC – 13Group 8 · EKC – 13
RDS data file (.gzd) 
[Gözlem]
Tarih=29.05.2024
Saat=09:05
Gözlemci=Burçin TANIK
KontrolEden=Süleyman FİŞEK
Durumaçısı=-16.22
Enlemaçısı=-0.96
Boylamaçısı=57.26
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.2
Sırano=19990
AyRasatNo=21
RasatÖnceki=27.05.2024
RasatSonraki=30.05.2024

[Leke Grupları]
Grupsayısı=8:6:2
LekeSayısı=74:58:16
RölatifSayı=154:118:36
01=DAI 10 +03.672 -04.670 052.590 15.944 0000 0 +05.453 -01.299 +01.890 -08.400 +04.209 -02.457 +02.801 -07.394
02=HS_ 01 +16.660 -05.174 052.860 +0.000 0000 0 +16.776 -04.480 +15.357 -05.868 +16.660 -04.980 +16.660 -05.368
03=EKC 36 +25.710 -18.780 038.480 20.745 0000 0 +27.812 -13.513 +22.330 -24.470 +23.865 -15.533 +26.244 -21.832
04=BXI 06 +19.337 -29.213 028.470 33.756 0000 0 +20.848 -27.548 +17.826 -30.877 +18.867 -28.635 +19.847 -30.102
05=BXO 03 +26.170 -32.395 024.865 +0.000 0000 0 +26.977 -28.499 +25.363 -36.291 +26.170 -28.699 +26.170 -36.910
06=AX_ 02 +07.138 -36.774 020.486 +0.000 0000 0 +07.383 -36.240 +06.893 -37.308 +07.138 -36.740 +07.138 -36.808
07=AX_ 03 -08.368 +29.810 086.341 +0.000 0000 0 -07.955 +30.173 -08.781 +27.989 -08.368 +30.402 -08.368 +29.218
08=EKC 13 -18.616 -70.994 346.266 16.936 0000 0 -15.746 -63.474 -21.486 -78.515 -17.634 -67.966 -19.819 -75.164
20240529.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 →

2024/20240529_bto · BTO · 5 frames · 107.1 MB · 09:10:03–09:14:47 UT

09:12:58 UT · 40 ms 09:11:22 UT · 20 ms 09:14:47 UT · 30 ms 09:10:03 UT · 50 ms · over-exposed 09:13:50 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.