Greek Capital Letter Upsilon With Dasia
HTML Entity Browser Test:

U+1F59 is the Unicode hex value of the character Greek Capital Letter Upsilon With Dasia, which is categorized as "uppercase letter" in the Unicode 6.0 character table.

In addition, U+1F59 is a composite character comprising of one or more other Unicode characters modified or combined.

Unicode Character Information
Unicode Hex U+1F59
Character Name GREEK CAPITAL LETTER UPSILON WITH DASIA
General Category Uppercase Letter [Code: Lu]
Canonical Combining Class 0
Bidirectional Category L
Decomposition Mapping 03A5 0314
Mirrored N
Lowercase Version U+1F51
Unicode Character Encodings
Greek Capital Letter Upsilon With Dasia HTML Entity Ὑ (decimal entity), Ὑ (hex entity)
Windows Key Code Alt 8025 or Alt +1F591
Programming Source Code Encodings Python hex: u"\u1F59", Hex for C++ and Java: "\u1F59"
UTF-8 Hexadecimal Encoding 0xE1BD99
1 To type a Unicode symbol in Windows, hold down the ALT key and enter the decimal or hexadecimal code provided using the numeric keypad. The decimal alt code (Alt 8025) will only work on computers with support for this Unicode character in the active code page. The hexadecimal alt code (Alt +1F59) will work for all Unicode characters provided Hex input from the numeric keypad is enabled.
* If the Greek Capital Letter Upsilon With Dasia character does not display correctly in your browser, you may not have a Unicode font on your system that supports this particular symbol.