π is the Unicode character LIGHT FIVE POINTED BLACK STAR, code point U+1F7C9 (decimal 128969) in the Geometric Shapes Extended block, added in Unicode 7.0. In HTML write 🟉, and in UTF-8 it is the 4 bytes F0 9F 9F 89.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F7C9 |
| Decimal | 128969 |
| UTF-8 bytes | F0 9F 9F 89 |
| UTF-16 (big-endian) | D83D DFC9 |
| UTF-32 | 0001F7C9 |
| HTML decimal | 🟉 |
| HTML hex | 🟉 |
| CSS | \1F7C9 |
| JavaScript | \u{1F7C9} or \uD83D\uDFC9 |
| JSON | \uD83D\uDFC9 |
| Python | \U0001F7C9 |
| Python by name | \N{LIGHT FIVE POINTED BLACK STAR} |
| Java, C# | \uD83D\uDFC9 |
| Rust, Swift | \u{1F7C9} |
| Go, C, C++ | \U0001F7C9 |
| URL (percent-encoded) | %F0%9F%9F%89 |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "π".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | LIGHT FIVE POINTED BLACK STAR |
| Code point | U+1F7C9 (decimal 128969) |
| Block | Geometric Shapes Extended (U+1F780βU+1F7FF) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 7.0 |
Nearby in Geometric Shapes Extended
- π U+1F7C1 Medium Three Pointed Black Star
- π U+1F7C2 Three Pointed Black Star
- π U+1F7C3 Medium Three Pointed Pinwheel Star
- π U+1F7C4 Light Four Pointed Black Star
- π U+1F7C5 Medium Four Pointed Black Star
- π U+1F7C6 Four Pointed Black Star
- π U+1F7C7 Medium Four Pointed Pinwheel Star
- π U+1F7C8 Reverse Light Four Pointed Pinwheel Star
- π U+1F7CA Heavy Five Pointed Black Star
- π U+1F7CB Medium Six Pointed Black Star
- π U+1F7CC Heavy Six Pointed Black Star
- π U+1F7CD Six Pointed Pinwheel Star
- π U+1F7CE Medium Eight Pointed Black Star
- π U+1F7CF Heavy Eight Pointed Black Star
- π U+1F7D0 Very Heavy Eight Pointed Black Star
- π U+1F7D1 Heavy Eight Pointed Pinwheel Star
All 120 characters: Geometric Shapes Extended.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 🟉 (decimal) or 🟉 (hex).
- What is the UTF-8 encoding of U+1F7C9?
- F0 9F 9F 89 (hex), 4 bytes. In a URL it is %F0%9F%9F%89.
- How do I write U+1F7C9 in JavaScript or Python?
- JavaScript: \u{1F7C9} or \uD83D\uDFC9. Python: \U0001F7C9.
Source
Unicode Character Database 18.0.0 (Unicode License v3); HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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