# Homework Help: Anyone Know How To Use This Data To Classify A Star From 0 - M?

1. Jan 16, 2005

### hype_chicky

Anyone Know How To Use This Data To Classify A Star From 0 - M???

RESULTS

Table 1: The following table demonstrates the results obtained for Star 1

Line # Wavelength Possible Element/Ion Error Mark-up(nm)
1 383.91 nm Hydrogen [H] + 0.41
2 388.60 nm Hydrogen [H] - 0.30
3 393.26 nm Calcium [Ca+] - 0.14
4 397.0 nm Hydrogen [H] 0
5 410.09 nm Hydrogen [H] - 0.10
6 434.4 nm Hydrogen [H] + 0.30
7 486.36 nm Hydrogen [H] + 0.26
8 589.15 nm Sodium [Na] + 0.05
9 656.3 nm Hydrogen [H] 0

Table 2: The following table demonstrates the results obtained for Star 2

Line # Wavelength Possible Element/Ion Error(nm)
1 369.2 nm - -- - - -
2 375 nm - - - - - -
3 378 nm - - - - - -
4 381 nm - - - - - -
5 383.36 nm Hydrogen [H] - 0.24
6 389.26 nm Hydrogen [H] + 0.36
7 393.9 nm Calcium [Ca+] + 0.5
8 397.4 nm Hydrogen [H] + 0.4
9 402.42 nm Helium [H] - 0.18
10 409.8 nm Hydrogen [H] - 0.40
11 419.94 nm Helium [H+] - 0.06
12 434.1 nm Hydrogen [H] 0
13 446.9 nm Helium [He] - 0.20
14 454.42 nm Helium {He+] + 0.32
15 468.58 nm Helium {He+] - 0.02
16 486.1 nm Hydrogen [H] 0
17 541.38 nm Helium [He+] +0.28
18 589.04 nm Sodium [Na] + 0.04
19 627.7 nm - - - - - -

2. Jan 16, 2005

### DB

Last edited: Jan 16, 2005