Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Supernova 1572 and other newly observed stars in the literature of the
  time   SN 1572, also known as the Tycho's Nova, was a supernova largely reported and
discussed in the literature of the time. Here we talk about this literature. In
the latest texts, we find also mentioned the Kepler's Nova, today known as SN
1604, and other newly observed stars. We discuss them too.

28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph