Images 18.03.2024 · Istanbul University Observatory Solar Observations

Solar Images Monday, 18 March 2024

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 07:45 UT
Observer: Korhan YELKENCİ
g: 7
f: 63
R: 133
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 8

Group 2 · CSI – 11

Group 3 · HS_ – 2

Group 4 · HS_ – 4

Group 5 · DAI – 13

Group 6 · CAI – 11

Group 7 · DAI – 14

RDS data file (.gzd)

[Gözlem]
Tarih=18.03.2024
Saat=07:45
Gözlemci=Korhan YELKENCİ
KontrolEden=Olcay PLEVNE
Durumaçısı=-24.96
Enlemaçısı=-7.09
Boylamaçısı=289.08
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.5
Sırano=19936
AyRasatNo=10
RasatÖnceki=17.03.2024
RasatSonraki=19.03.2024

[Leke Grupları]
Grupsayısı=7:4:3
LekeSayısı=63:25:38
RölatifSayı=133:65:68
01=BXI 08 +02.867 +20.598 309.678 24.235 0000 0 +03.884 +22.615 +01.850 +18.582 +03.684 +22.415 +02.500 +18.782
02=CSI 11 +10.404 +14.520 303.600 52.690 0000 0 +11.728 +17.639 +09.810 +11.400 +11.416 +17.320 +09.730 +16.340
03=HS_ 02 +27.550 -19.587 269.493 +0.000 0000 0 +27.586 -18.834 +26.524 -20.340 +27.550 -19.334 +27.550 -19.840
04=HS_ 04 +15.371 -65.509 223.571 +0.000 0000 0 +17.970 -63.723 +13.644 -67.295 +15.371 -64.223 +15.371 -66.795
05=DAI 13 -23.510 +33.820 322.900 14.824 0000 0 -22.200 +37.236 -24.100 +30.405 -22.202 +37.360 -23.900 +30.605
06=CAI 11 -18.295 +21.956 311.360 36.659 0000 0 -16.621 +24.410 -19.970 +19.871 -16.968 +23.841 -19.770 +20.710
07=DAI 14 -12.471 -74.161 214.919 14.861 0000 0 -10.678 -67.904 -14.265 -80.417 -10.878 -68.104 -14.650 -80.217

20240318.gzd

Chromosphere (H-α) FITS frames

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 →

2024/20240318_ky · KY · 14 frames · 299.9 MB · 07:56:09–08:02:40 UT

07:56:09 UT · 30 ms