Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 1 January 2023

‹ 31.12.2022 2023 02.01.2023 ›

Photosphere sunspot drawing and RDS evaluation

01.01.2023 photosphere drawing

High-resolution scan (3235 px)

Time
09:50 UT
Observer
Hikmet ÇAKMAK
g
8
f
43
R
123
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · DAC – 9Group 2 · DAC – 9 Group 3 · EAC – 12Group 3 · EAC – 12 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · DAO – 7Group 5 · DAO – 7 Group 6 · CAO – 2Group 6 · CAO – 2 Group 7 · DAC – 10Group 7 · DAC – 10 Group 8 · ?__ – 1Group 8 · ?__ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=1.01.2023
Saat=09:50
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Ergün EGE
Durumaçısı=1.99
Enlemaçısı=-3.01
Boylamaçısı=359.6
Boylamfark=1
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.4
Sırano=19630
AyRasatNo=1
RasatÖnceki=31.12.2022
RasatSonraki=02.01.2023

[Leke Grupları]
Grupsayısı=8:6:2
LekeSayısı=43:32:11
RölatifSayı=123:92:31
01=AX_ 01 +24.145 +46.999 046.599 -1.000 0000 0 +24.145 +46.999 +24.145 +46.999
02=DAC 09 +13.818 +42.940 041.694 03.713 0000 0 +15.194 +46.919 +12.442 +37.269 +13.883 +45.220 +13.416 +38.100
03=EAC 12 +19.216 +05.972 005.572 03.689 0000 0 +20.859 +12.393 +17.573 -00.448 +18.923 +11.184 +19.603 +00.588
04=AX_ 01 +14.818 -06.593 353.700 -1.000 0000 0 +14.818 -06.593 +14.818 -06.593
05=DAO 07 +21.110 -51.320 308.280 24.910 0000 0 +22.647 -47.339 +19.574 -55.302 +21.728 -50.607 +20.180 -54.434
06=CAO 02 +16.768 -52.883 306.717 04.848 0000 0 +17.596 -48.845 +15.941 -56.921 +16.915 -49.747 +16.342 -56.527
07=DAC 10 -17.126 -26.809 332.791 10.869 0000 0 -15.711 -22.455 -18.542 -31.163 -17.948 -23.402 -16.663 -30.111
08=?__ 01 -18.483 -78.729 280.871 +0.000 0000 0 -17.569 -78.100 -19.396 -79.457 -18.483 -78.550 -18.483 -78.907
20230101.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 →

2023/20230101_hc · HC · 8 frames · 171.4 MB · 09:58:19–10:30:40 UT

10:16:13 UT · 30 ms 10:30:40 UT · 30 ms 10:19:48 UT · 40 ms 10:03:41 UT · 30 ms 10:08:29 UT · 60 ms · over-exposed 09:58:19 UT · 30 ms 10:22:30 UT · 70 ms · over-exposed 10:10:21 UT · 80 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.