This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as sunny.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F323 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
A solar symbol is a symbol representing the Sun.
Common solar symbols include circles (with or without rays), crosses, and spirals.
In religious iconography, personifications of the Sun or solar attributes are often indicated by means of a halo or a radiate crown.
When the systematic study of comparative mythology first became popular in the 19th century, scholarly opinion tended to over-interpret historical myths and iconography in terms of "solar symbolism".
This was especially the case with Max Müller and his followers beginning in the 1860s in the context of Indo-European studies. Many "solar symbols" claimed in the 19th century, such as the swastika, triskele, Sun cross, etc. have tended to be interpreted more conservatively in scholarship since the later 20th century.
Representations
System
Representation (click value to copy)
Nº
127779
UTF-8
F0 9F 8C A3
UTF-16
D8 3C DF 23
UTF-32
00 01 F3 23
URL-Quoted
%F0%9F%8C%A3
HTML hex reference
🌣
Wrong windows-1252 Mojibake
🌣
alias
sunny
Encoding: GB18030 (hex bytes)
94 39 B3 33
RFC 5137
\u'1F323'
Bash and Zsh inside echo -e
\U0001F323
C and C++
\U0001F323
C#
\U0001F323
CSS
\01F323
Excel
=UNICHAR(127779)
Go
\U0001F323
JavaScript
\uD83C\uDF23
Modern JavaScript since ES6
\u{1f323}
JSON
\uD83C\uDF23
Java
\uD83C\uDF23
Lua
\u{1F323}
Matlab
char(127779)
Perl
"\x{1F323}"
PHP
\u{1f323}
PostgreSQL
U&'\+01F323'
PowerShell
`u{1F323}
Python
\U0001F323
Ruby
\u{1f323}
Rust
\u{1f323}
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