Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 7 January 2023

‹ 06.01.2023 2023 08.01.2023 ›

Photosphere sunspot drawing and RDS evaluation

07.01.2023 photosphere drawing

High-resolution scan (3230 px)

Time
08:00 UT
Observer
Korhan YELKENCİ
g
7
f
87
R
157
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 4Group 1 · BXI – 4 Group 2 · CAI – 6Group 2 · CAI – 6 Group 3 · HS_ – 2Group 3 · HS_ – 2 Group 4 · BXI – 6Group 4 · BXI – 6 Group 5 · CAI – 15Group 5 · CAI – 15 Group 6 · CAI – 28Group 6 · CAI – 28 Group 7 · EAC – 26Group 7 · EAC – 26
RDS data file (.gzd) 
[Gözlem]
Tarih=7.01.2023
Saat=08:00
Gözlemci=Korhan YELKENCİ
KontrolEden=Talar YONTAN
Durumaçısı=-0.87
Enlemaçısı=-3.69
Boylamaçısı=281.58
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.1
Sırano=19635
AyRasatNo=6
RasatÖnceki=06.01.2023
RasatSonraki=08.01.2023

[Leke Grupları]
Grupsayısı=7:3:4
LekeSayısı=87:12:75
RölatifSayı=157:42:115
01=BXI 04 +22.514 +63.947 345.527 28.234 0000 0 +23.625 +65.846 +21.402 +62.480 +23.425 +65.646 +21.602 +62.248
02=CAI 06 +16.827 +25.463 307.430 25.570 0000 0 +18.563 +28.882 +15.910 +22.430 +18.363 +28.682 +15.291 +22.243
03=HS_ 02 +21.291 +23.791 305.371 +0.000 0000 0 +22.130 +24.805 +20.568 +22.776 +21.291 +24.306 +21.291 +23.277
04=BXI 06 -17.932 +51.720 332.652 +0.000 0000 0 -17.508 +53.756 -18.356 +48.387 -17.932 +53.905 -17.932 +49.535
05=CAI 15 -17.315 +25.481 307.610 23.980 0000 0 -15.680 +30.310 -19.561 +20.652 -15.268 +30.110 -19.361 +20.852
06=CAI 28 -19.213 -03.857 277.723 41.472 0000 0 -15.265 +00.623 -23.161 -08.337 -15.465 +00.423 -22.961 -08.137
07=EAC 26 -16.890 -57.233 224.347 35.500 0000 0 -10.940 -49.819 -21.238 -64.646 -11.140 -50.190 -21.380 -64.446
20230107.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 →

2023/20230107_ky · KY · 19 frames · 407.1 MB · 08:13:47–08:25:28 UT

08:19:00 UT · 50 ms 08:23:28 UT · 30 ms 08:22:58 UT · 50 ms 08:19:30 UT · 30 ms 08:18:29 UT · 60 ms 08:13:47 UT · 60 ms 08:22:28 UT · 60 ms 08:14:47 UT · 30 ms 08:15:17 UT · 60 ms 08:25:28 UT 08:23:58 UT · 60 ms 08:24:28 UT · 50 ms 08:24:58 UT · 30 ms 08:21:59 UT 08:20:00 UT · 60 ms 08:20:29 UT · 50 ms 08:20:59 UT · 30 ms 08:21:29 UT 08:14:17 UT · 50 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.