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Plot the absolute magnitude on the y-axis and the spectral class on the x-axis. Since the spectral class is qualitative, convert it to a quantitative

Plot the absolute magnitude on the y-axis and the spectral class on the x-axis. Since the spectral class is qualitative, convert it to a quantitative measure by assigning numerical values to each class (e.g., O=1, B=2, A=3, F=4, G=5, K=6, M=7).

Bright Stars (plot with color BLUE):

  1. Sirius A: A1, +1.4 mag ? (3, 1.4)
  2. Sirius B: B8, +11.5 mag ? (9, 11.5)
  3. Canopus: F0, -3.1 mag ? (4, -3.1)
  4. Centaurus A: G2, +4.4 mag ? (5, 4.4)
  5. Centaurus B: K5, +5.8 mag ? (7, 5.8)
  6. Arcturus: K2, -0.3 mag ? (6.4, -0.3)
  7. Vega: A0, +0.5 mag ? (3, 0.5)
  8. Capella A: G0, -0.7 mag ? (5, -0.7)
  9. Capella B: M0, +9.5 mag ? (7, 9.5)
  10. Capella C: M5, +13 mag ? (7.5, 13)
  11. Rigel A: B8, -6.8 mag ? (9, -6.8)
  12. Rigel B: B9, -0.4 mag ? (9.5, -0.4)
  13. Procyon A: F5, +2.7 mag ? (4.2, 2.7)
  14. Procyon B: F0, +13 mag ? (9, 13)
  15. Achernar: B5, -1 mag ? (8.5, -1)
  16. Beta Centauri A: B1, -4.1 mag ? (9.3, -4.1)
  17. Betelgeuse: M2, -5.5 mag ? (7.2, -5.5)
  18. Altair: A7, +2.2 mag ? (3.2, 2.2)
  19. Spica A: B1, -3.6 mag ? (9.3, -3.6)
  20. Spica B: B2, -2.9 mag ? (9.2, -2.9)
  21. Pollux: K0, +0.08 mag ? (6.8, 0.08)
  22. Fomalhaut A: A3, +2 mag ? (3.3, 2)
  23. Fomalhaut B: K4, +7.3 mag ? (6.7, 7.3)
  24. Deneb: A2, -6.9 mag ? (3.1, -6.9)
  25. Beta Crucis A: B0, -4.6 mag ? (9.1, -4.6)
  26. Beta Crucis B: B3, -3.5 mag ? (9.3, -3.5)
  27. Castor A: A1, +2.1 mag ? (3, 2.1)
  28. Castor B: A5, +2.9 mag ? (3.7, 2.9)
  29. Castor C: K6, +8.8 mag ? (6.6, 8.8)
  30. Shaula: B1, -3.3 mag ? (9.3, -3.3)
  31. Bellatrix: B2, -4.2 mag ? (9.2, -4.2)

Near Stars (plot with color RED):

  1. Sun: G2, +4.8 mag ? (5, 4.8)
  2. Centauri A: G2, +4.4 mag ? (5, 4.4)
  3. Centauri B: K5, +5.8 mag ? (7, 5.8)
  4. Centauri C: M5, +15 mag ? (7.5, 15)
  5. Lalande 21185: M2, +10.5 mag ? (7, 10.5)
  6. Sirius A: A1, +1.4 mag ? (3, 1.4)
  7. Sirius B: B8, +11.5 mag ? (9, 11.5)
  8. Struve 2398: M4, +11.1 mag ? (7.2, 11.1)
  9. Struve 23948: M5, +11.9 mag ? (7.5, 11.9)
  10. Lacaille 9352: M2, +9.6 mag ? (7, 9.6)
  11. Ross 154: M4, +13.3 mag ? (7.2, 13.3)
  12. Ross 248: M5, +14.7 mag ? (7.5, 14.7)
  13. Epsilon Eridani: K2, +6.1 mag ? (6.2, 6.1)
  14. Luyten: M5, +14.7 mag ? (7.5, 14.7)
  15. Ross 128: M5, +13.8 mag ? (7.5, 13.8)
  16. 61 Cygni A: K5, +7.5 mag ? (6.5, 7.5)
  17. 61 Cygni B: K7, +8.3 mag ? (6.7, 8.3)
  18. Epsilon Indi: K5, +7 mag ? (6.5, 7)
  19. Tau Ceti: G8, +5.7 mag ? (5.2, 5.7)
  20. Groom 34 A: M1, +10.5 mag ? (7, 10.5)
  21. Groom 34 B: M6, +13.2 mag ? (7.4, 13.2)
  22. Lacaille 8760: M0, +8.7 mag ? (7, 8.7)
  23. Krueger 60 A: M3, +11.8 mag ? (7.1, 11.8)
  24. Krueger 60 B: M4, +13.4 mag ? (7.3, 13.4)
  25. Ross 614: M5, +13.1 mag ? (7.5, 13.1)
  26. BD +5 1668: M4, +11.9 mag ? (7.3, 11.9)
  27. Kapteyn's Star: M0, +8.7 mag ? (7, 8.7)
  28. BD -12 4523: M4, +12 mag ? (7.3, 12)
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