Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 30 October 2021

‹ 29.10.2021 2021 31.10.2021 ›

Photosphere sunspot drawing and RDS evaluation

30.10.2021 photosphere drawing

High-resolution scan (3235 px)

Time
09:00 UT
Observer
Burçin TANIK
g
5
f
38
R
88
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 4Group 1 · AX_ – 4 Group 2 · DAI – 19Group 2 · DAI – 19 Group 3 · CHO – 4Group 3 · CHO – 4 Group 4 · CAI – 9Group 4 · CAI – 9 Group 5 · AX_ – 2Group 5 · AX_ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=30.10.2021
Saat=09:00
Gözlemci=Burçin TANIK
KontrolEden=Oğuzhan ÇAKIR
Durumaçısı=24.71
Enlemaçısı=4.55
Boylamaçısı=247.88
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=0.1
Sırano=19311
AyRasatNo=22
RasatÖnceki=29.10.2021
RasatSonraki=31.10.2021

[Leke Grupları]
Grupsayısı=5:2:3
LekeSayısı=38:23:15
RölatifSayı=88:43:45
01=AX_ 04 +26.752 +05.943 253.823 +0.000 0000 0 +27.282 +07.166 +26.222 +04.720 +26.752 +06.666 +26.752 +05.220
02=DAI 19 +17.620 -39.540 208.340 +0.000 0000 0 +20.183 -34.910 +15.560 -44.169 +17.620 -35.110 +17.620 -43.969
03=CHO 04 -25.825 +27.973 275.853 +0.000 0000 0 -23.234 +29.653 -28.416 +26.294 -25.825 +29.453 -25.825 +26.494
04=CAI 09 -28.627 +22.340 269.914 +0.000 0000 0 -25.986 +24.399 -31.268 +19.670 -28.627 +24.199 -28.627 +19.870
05=AX_ 02 -12.759 -05.330 242.847 +0.000 0000 0 -12.138 -04.772 -13.380 -05.293 -12.759 -05.569 -12.759 -05.900
20211030.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 →

2021/20211030_btö · BTÖ · 6 frames · 128.6 MB · 09:02:02–09:14:28 UT

09:08:13 UT · 40 ms 09:04:25 UT · 40 ms 09:14:28 UT · 30 ms 09:06:38 UT · 50 ms · over-exposed 09:12:30 UT · 60 ms · over-exposed 09:02:02 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.