Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 1 June 2023

‹ 31.05.2023 2023 02.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

01.06.2023 photosphere drawing

High-resolution scan (3227 px)

Time
08:55 UT
Observer
Burçin TANIK
g
11
f
50
R
160
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ?__ – 1Group 1 · ?__ – 1 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · BXI – 4Group 3 · BXI – 4 Group 4 · AX_ – 2Group 4 · AX_ – 2 Group 5 · HS_ – 1Group 5 · HS_ – 1 Group 6 · AX_ – 1Group 6 · AX_ – 1 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · EHC – 9Group 8 · EHC – 9 Group 9 · EHI – 12Group 9 · EHI – 12 Group 10 · HK_ – 6Group 10 · HK_ – 6 Group 11 · ESC – 12Group 11 · ESC – 12
RDS data file (.gzd) 
[Gözlem]
Tarih=1.06.2023
Saat=08:55
Gözlemci=Burçin TANIK
KontrolEden=Olcay PLEVNE
Durumaçısı=-15.4
Enlemaçısı=-0.69
Boylamaçısı=168.44
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.5
Sırano=19723
AyRasatNo=1
RasatÖnceki=31.05.2023
RasatSonraki=02.06.2023

[Leke Grupları]
Grupsayısı=11:7:4
LekeSayısı=50:11:39
RölatifSayı=160:81:79
01=?__ 01 +24.974 +83.836 252.276 -1.000 0000 0 +24.974 +83.836 +24.974 +83.836
02=HS_ 01 +24.794 +59.343 227.783 +0.000 0000 0 +25.731 +60.472 +23.856 +58.214 +24.794 +59.972 +24.794 +58.714
03=BXI 04 +16.693 +55.588 224.280 13.495 0000 0 +17.916 +58.988 +15.471 +52.189 +16.440 +57.506 +16.999 +53.522
04=AX_ 02 +15.156 -12.250 156.415 +0.000 0000 0 +15.485 -11.308 +14.826 -12.742 +15.156 -12.330 +15.156 -12.467
05=HS_ 01 +09.974 -40.640 127.800 +0.000 0000 0 +10.592 -39.836 +09.355 -41.445 +09.974 -40.335 +09.974 -40.944
06=AX_ 01 +23.273 -47.256 121.184 -1.000 0000 0 +23.273 -47.256 +23.273 -47.256
07=AX_ 01 +09.435 -50.700 118.370 -1.000 0000 0 +09.435 -50.700 +09.435 -50.700
08=EHC 09 -17.160 +64.256 232.696 10.812 0000 0 -15.160 +70.464 -19.160 +58.470 -16.286 +68.975 -18.160 +59.876
09=EHI 12 -18.367 +32.625 201.640 02.199 0000 0 -16.817 +38.931 -19.918 +26.318 -18.525 +37.339 -18.139 +27.230
10=HK_ 06 -15.380 -50.560 117.880 +0.000 0000 0 -14.820 -48.547 -16.679 -52.573 -15.380 -49.470 -15.380 -52.730
11=ESC 12 -07.245 -72.660 096.374 14.993 0000 0 -04.785 -64.632 -09.705 -79.499 -08.169 -66.515 -05.757 -75.566
20230601.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 →

2023/20230601_bto · BTO · 6 frames · 128.6 MB · 09:05:39–09:11:43 UT

09:07:34 UT · 30 ms 09:11:43 UT · 40 ms 09:09:00 UT · 40 ms 09:09:50 UT · 70 ms · over-exposed 09:10:45 UT · 80 ms · over-exposed 09:05:39 UT · 80 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.