Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 3 March 2021

‹ 02.03.2021 2021 04.03.2021 ›

Photosphere sunspot drawing and RDS evaluation

03.03.2021 photosphere drawing

High-resolution scan (3231 px)

Time
07:30 UT
Observer
Oğuzhan ÇAKIR
g
2
f
13
R
33
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DSI – 8Group 1 · DSI – 8 Group 2 · CSI – 5Group 2 · CSI – 5
RDS data file (.gzd) 
[Gözlem]
Tarih=3.03.2021
Saat=07:30
Gözlemci=Oğuzhan ÇAKIR
KontrolEden=Talar YONTAN
Durumaçısı=-22.11
Enlemaçısı=-7.24
Boylamaçısı=192.75
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.5
Sırano=19136
AyRasatNo=3
RasatÖnceki=02.03.2021
RasatSonraki=04.03.2021

[Leke Grupları]
Grupsayısı=2:0:2
LekeSayısı=13:0:13
RölatifSayı=33:0:33
01=DSI 08 -31.497 +03.664 196.414 +0.000 0000 0 -29.590 +06.486 -33.403 +00.841 -31.497 +06.286 -31.497 +01.410
02=CSI 05 -19.210 -39.956 152.794 +0.000 0000 0 -18.538 -37.502 -19.881 -42.409 -19.210 -38.300 -19.210 -41.910
20210303.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 →

2021/20210303_oc · OC · 15 frames · 321.4 MB · 07:34:36–08:02:25 UT

07:34:36 UT · 40 ms 07:49:38 UT · 40 ms 08:01:14 UT · 40 ms 07:36:28 UT · 70 ms · over-exposed 07:50:29 UT · 70 ms · over-exposed 08:02:25 UT · 70 ms · over-exposed 08:00:27 UT · 70 ms 07:59:34 UT · 70 ms 07:58:35 UT · 70 ms 07:53:18 UT · 40 ms 07:52:21 UT · 40 ms 07:51:24 UT · 40 ms 07:40:35 UT 07:39:49 UT 07:37:50 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.