For around 50 years, a solar flare is among the activities of the Sun that has been evaluated and observed by scientists. The origin of the solar flare is from the sunspot associated with a solar burst. The solar burst can be break into 5 types. Long duration solar bursts have been investigated in this study. There are 15 selected dates that have been chosen from 2019 until 2020. Radio flux and sunspot numbers affiliated with long-duration solar bursts have been analyzed in this paper. As a result, the longest and the shortest solar burst that has been recorded is 535 minutes on 14/04/19 and 36 minutes on 21/03/19 respectively. The Sun is very important to be consistently observed because in rare cases, the flare is very strong and can affect the Earth’s magnetosphere.

Topics
Solar activity
1.
J. V.
 
Wijesekera
,
K. P. S. C.
 
Jayaratne
 and
J.
 
Adassuriya
,
Journal of Physics: Conference Series
 
1005
,
012046
(
2018
).
Google Scholar
 
2.
Í. G.
 
Gonçalves
,
E.
 
Echer
 and
E.
 
Frigo
,
Advances in Space Research
 
65
(
1
),
677
–
683
(
2020
).
https://doi.org/10.1016/j.asr.2019.11.011
Google Scholar
Crossref
Search ADS
 
3.
G. S.
 
Suryanarayana
 and
K. M.
 
Balakrishna
,
Advances in Space Research
 
61
(
9
),
2482
–
2489
(
2018
).
https://doi.org/10.1016/j.asr.2018.02.008
Google Scholar
Crossref
Search ADS
 
4.
National Aeronautics and Space Administration, Sunspots and solar flares
| NASA Space Place, https://spaceplace.nasa.gov/solar-activity/en/ (Accessed 12 Nov 2020).
5.
X.
 
Yue
,
W. S.
 
Schreiner
,
Y.-H.
 
Kuo
,
B.
 
Zhao
,
W.
 
Wan
,
Z.
 
Ren
,
L.
 
Liu
,
Y.
 
Wei
,
J.
 
Lei
,
S.
 
Solomon
 and
C.
 
Rocken
,
Journal of Geophysical Research: Space Physics
 
118
(
9
),
5906
–
5918
(
2013
).
Google Scholar
Crossref
Search ADS
 
6.
A.
 
Mahrous
,
K.
 
Alielden
,
B.
 
Vršnak
 and
M.
 
Youssef
,
Journal of Atmospheric and Solar-Terrestrial Physics
 
172
,
75
–
82
(
2018
).
https://doi.org/10.1016/j.jastp.2018.03.018
Google Scholar
Crossref
Search ADS
 
7.
Y.
 
Ma
,
R.-x.
 
Xie
,
X.-m.
 
Zheng
,
M.
 
Wang
 and
Y.
 
Yi-hua
,
Chinese Astronomy and Astrophysics
 
36
(
2
),
175
–
186
(
2012
).
https://doi.org/10.1016/j.chinastron.2012.04.008
Google Scholar
Crossref
Search ADS
 
8.
S.
 
Pohjolainen
 and
N. Talebpour
 
Sheshvan
,
Advances in Space Research
 
65
(
6
),
1663
–
1672
(
2020
).
https://doi.org/10.1016/j.asr.2019.05.034
Google Scholar
Crossref
Search ADS
 
9.
National Aeronautics and Space Administration
,
An eruptive solar prominence
, https://www.nasa.gov/mission_pages/sunearth/science/solar-prominence.html (Accessed 17 Nov 2020).
10.
Australia Government, Bureau of Meteorology, Climate change and space weather, https://www.sws.bom.gov.au/Educational/1/3/3#top (Accessed 18 Nov 2020).
11.
Union of Concerned Scientist, how does the sun affect our climate?
 https://www.ucsusa.org/resources/how-does-sun-affect-our-climate (Accessed 20 Nov 2020).
12.
M. M.
 
Lam
,
G.
 
Chisham
 and
M. P.
 
Freeman
,
Geophysical Research Letters
 
41
(
18
),
6509
–
6514
(
2014
).
https://doi.org/10.1002/2014GL061421
Google Scholar
Crossref
Search ADS
 
13.
K. A.
 
Sorathia
,
V. G.
 
Merkin
,
A. Y.
 
Ukhorskiy
,
R. C.
 
Allen
,
K.
 
Nykyri
 and
S.
 
Wing
,
J Geophys Res Space Phys
 
124
(
7
),
5461
–
5481
(
2019
).
https://doi.org/10.1029/2019JA026728
Google Scholar
Crossref
Search ADS
PubMed
 
This content is only available via PDF.
© 2021 Author(s).
2021
Author(s)
You do not currently have access to this content.