<p>Normally, you would write G2V (with no spaces), as separating each part of the classification would cause some ambiguity. Basically, any star's classification would be written as 'Temperature class'+'Digit'+'Star type.'</p>

CC BY-SA 4.0
2020-01-27T14:29:38.797Z
2020-01-27T14:29:38.797Z
WarpPrime
<p>How to write G2V correctly (I mean space)? I saw in articles <span class="math-container">$ G\,2\,V$</span> and  <span class="math-container">$G2\,V$</span>, on the internet webside it is usually <span class="math-container">$ G2V$</span>. </p>

CC BY-SA 4.0
2019-09-05T02:33:17.390Z
[No space](https://en.wikipedia.org/wiki/Stellar_classification).
Rob
CC BY-SA 4.0
2019-09-05T03:12:00.930Z
Is WIKI reliable source?  in A&A are small space: [article (Introduction for instance)](https://www.researchgate.net/publication/44844166_Physical_elements_of_the_eclipsing_binary_delta_Orionis)
Arrara
<star><classification><stellar-classification>
Grammar of stellar classification
Arrara
# Grammar of stellar classification

(Asked by: username_0 on 2019-09-02)

How to write G2V correctly (I mean space)? I saw in articles $ G\,2\,V$ and $G2\,V$, on the internet webside it is usually $ G2V$.

**Tags:** star, classification, stellar-classification

> **Comments:**
> **username_1**: [No space](https://en.wikipedia.org/wiki/Stellar_classification).  
> **username_0**: Is WIKI reliable source?  in A&A are small space: [article (Introduction for instance)](https://www.researchgate.net/publication/44844166_Physical_elements_of_the_eclipsing_binary_delta_Orionis)  

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## 1 answers

### Answer by username_2 on 2020-01-27. Score: 2

Normally, you would write G2V (with no spaces), as separating each part of the classification would cause some ambiguity. Basically, any star's classification would be written as 'Temperature class'+'Digit'+'Star type.'


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