Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 31 March 2024

‹ 30.03.2024 2024 01.04.2024 ›

Photosphere sunspot drawing and RDS evaluation

31.03.2024 photosphere drawing

High-resolution scan (3230 px)

Time
06:45 UT
Observer
Süleyman FİŞEK
g
8
f
22
R
102
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · BXO – 4Group 2 · BXO – 4 Group 3 · AX_ – 4Group 3 · AX_ – 4 Group 4 · BXO – 3Group 4 · BXO – 3 Group 5 · BXO – 2Group 5 · BXO – 2 Group 6 · AX_ – 2Group 6 · AX_ – 2 Group 7 · BXO – 4Group 7 · BXO – 4 Group 8 · AX_ – 2Group 8 · AX_ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=31.03.2024
Saat=06:45
Gözlemci=Süleyman FİŞEK
KontrolEden=Korhan YELKENCİ
Durumaçısı=-26.12
Enlemaçısı=-6.57
Boylamaçısı=118.19
Boylamfark=3
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.5
Sırano=19947
AyRasatNo=21
RasatÖnceki=30.03.2024
RasatSonraki=01.04.2024

[Leke Grupları]
Grupsayısı=8:4:4
LekeSayısı=22:12:10
RölatifSayı=102:52:50
01=HS_ 01 +17.976 +67.694 185.884 +0.000 0000 0 +19.191 +68.869 +16.761 +66.520 +17.976 +68.368 +17.976 +67.200
02=BXO 04 +13.115 +55.312 173.502 +0.000 0000 0 +13.894 +57.168 +12.335 +53.456 +13.115 +56.668 +13.115 +53.956
03=AX_ 04 +11.415 +07.993 126.183 +0.000 0000 0 +11.766 +09.314 +11.640 +06.671 +11.415 +08.814 +11.415 +07.172
04=BXO 03 +14.831 -48.545 069.645 +0.000 0000 0 +15.298 -46.515 +14.363 -50.574 +14.831 -47.150 +14.831 -50.740
05=BXO 02 -14.870 +85.443 203.633 +0.000 0000 0 -12.218 +87.302 -15.955 +83.584 -14.870 +87.102 -14.870 +83.784
06=AX_ 02 -12.828 +64.947 183.137 +0.000 0000 0 -12.431 +65.445 -13.224 +64.448 -12.828 +64.945 -12.828 +64.949
07=BXO 04 -11.522 +50.669 168.859 +0.000 0000 0 -10.861 +52.345 -12.183 +48.992 -11.522 +51.845 -11.522 +49.493
08=AX_ 02 -11.905 -46.370 072.153 +0.000 0000 0 -11.657 -45.524 -12.153 -46.550 -11.905 -46.357 -11.905 -46.383
20240331.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 →

2024/20240331_sf · SF · 6 frames · 128.6 MB · 06:54:13–07:01:21 UT

06:54:13 UT · 40 ms 07:00:09 UT · 40 ms 06:58:16 UT · 40 ms 07:01:21 UT · 70 ms · over-exposed 06:59:22 UT · 70 ms · over-exposed 06:56:40 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.