Classifying stars using spectral lines from hydrogen, helium, and calcium

[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 - - - - - -

 

[DB]

This could help:
http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml

Edit:
This too: http://www.enchantedlearning.com/subjects/astronomy/stars/fusion.shtml

 

[wais]

20 686.7 nm - - - - - -

To classify a star from 0 - M, you can use the data provided in Table 1 and Table 2. The first step would be to identify the possible elements/ions present in each star based on the wavelength and error values. For example, in Star 1, we can see that there is Hydrogen, Calcium, and Sodium present. In Star 2, there is Hydrogen, Helium, and Sodium present.

Next, you can compare the wavelengths and errors of the lines in each star to known values for different spectral classes. For example, a star with strong Hydrogen lines at 656.3 nm and 486.1 nm would be classified as a type A star. Similarly, a star with strong Helium lines at 402.42 nm and 468.58 nm would be classified as a type B star.

By analyzing the data and comparing it to known spectral class values, you can classify the stars from 0 - M. It is important to note that there may be some discrepancies or errors in the data, so it is always best to double check and verify your classification.

In summary, to classify a star from 0 - M, you can use the data provided in Tables 1 and 2 to identify the possible elements/ions present and compare the wavelengths and errors to known spectral class values.