Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 25 July 2022

‹ 24.07.2022 2022 26.07.2022 ›

Photosphere sunspot drawing and RDS evaluation

25.07.2022 photosphere drawing

High-resolution scan (3229 px)

Time
07:35 UT
Observer
Hikmet ÇAKMAK
g
8
f
23
R
103
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CRI – 4Group 1 · CRI – 4 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · BXI – 6Group 3 · BXI – 6 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · HA_ – 1Group 5 · HA_ – 1 Group 6 · BXI – 5Group 6 · BXI – 5 Group 7 · CSO – 2Group 7 · CSO – 2 Group 8 · BXI – 3Group 8 · BXI – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=25.07.2022
Saat=07:35
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Talar YONTAN
Durumaçısı=8.04
Enlemaçısı=5.23
Boylamaçısı=312.05
Boylamfark=2
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.4
Sırano=19501
AyRasatNo=24
RasatÖnceki=24.07.2022
RasatSonraki=26.07.2022

[Leke Grupları]
Grupsayısı=8:4:4
LekeSayısı=23:12:11
RölatifSayı=103:52:51
01=CRI 04 +12.900 +64.360 016.410 28.290 0000 0 +13.607 +66.820 +10.573 +61.900 +11.263 +65.575 +12.858 +62.577
02=AX_ 01 +12.300 +49.600 001.560 -1.000 0000 0 +12.300 +49.600 +12.300 +49.600
03=BXI 06 +08.981 +31.134 343.184 08.527 0000 0 +10.207 +34.769 +07.755 +27.500 +09.406 +33.815 +08.749 +29.428
04=AX_ 01 +24.140 -61.578 250.472 -1.000 0000 0 +24.140 -61.578 +24.140 -61.578
05=HA_ 01 -07.714 +57.897 009.947 +0.000 0000 0 -06.981 +58.717 -08.447 +57.770 -07.714 +57.870 -07.714 +57.924
06=BXI 05 -18.390 +28.243 340.293 07.828 0000 0 -17.379 +31.426 -19.400 +25.600 -18.134 +30.733 -18.848 +25.532
07=CSO 02 -23.663 -07.544 304.506 15.761 0000 0 -22.500 -05.579 -24.827 -09.508 -24.324 -05.969 -23.459 -09.360
08=BXI 03 -14.375 -26.758 285.292 +0.000 0000 0 -13.789 -25.208 -14.962 -28.308 -14.375 -25.708 -14.375 -27.808
20220725.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 →

2022/20220725_hc · HC · 14 frames · 300.0 MB · 07:34:20–08:24:51 UT

07:43:37 UT · 30 ms 07:35:58 UT · 30 ms 08:11:44 UT · 40 ms 07:34:20 UT · 60 ms 07:36:59 UT · 70 ms 08:01:47 UT · 40 ms 08:24:51 UT · 40 ms 08:00:54 UT · 80 ms · over-exposed 07:51:59 UT · 80 ms · over-exposed 08:10:01 UT · 80 ms · over-exposed 08:17:06 UT · 80 ms · over-exposed 08:16:21 UT · 80 ms 08:15:37 UT · 40 ms 08:12:40 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.