Data Tables for Exercise 1
Emission Lines and Central Star Temperature
in Planetary Nebulae

Table 1

NEBULA NAME: M1-57

Wavelength
(Angstroms)

  Ion  

Ionization
Potential
of next lowest
ionization state

Present (Y)
Absent (N)

6087 [Ca V]       67.1 eV       
7005 [Ar V]       59.8 eV       
6434 [Ar V]       59.8 eV       
6101 [K IV]       45.7 eV       
8046 [Cl IV]       39.6 eV       
7531 [Cl IV]       39.6 eV       

Return to Exercise 1

Table 2

NEBULA NAME: IC 3568

Wavelength
(Angstroms)

  Ion  

Ionization
Potential
of next lowest
ionization state

Present (Y)
Absent (N)

6087 [Ca V]       67.1 eV       
7005 [Ar V]       59.8 eV       
6434 [Ar V]       59.8 eV       
6101 [K IV]       45.7 eV       
8046 [Cl IV]       39.6 eV       
7531 [Cl IV]       39.6 eV       

Return to Exercise 1

Table 3

NEBULA NAME:NGC 6210

Wavelength
(Angstroms)

  Ion  

Ionization
Potential
of next lowest
ionization state

Present (Y)
Absent (N)

6087 [Ca V]       67.1 eV       
7005 [Ar V]       59.8 eV       
6434 [Ar V]       59.8 eV       
6101 [K IV]       45.7 eV       
8046 [Cl IV]       39.6 eV       
7531 [Cl IV]       39.6 eV       

Return to Exercise 1

Results

    Rank
(1=hottest
central star)  		    Nebula  
      1    
      2    
      3    

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