Ad Astra
M☉ Notation
Unit of measurement in
astronomy called the solar mass.
- M stands for Mass
- ☉ Astronomical Symbol/Sun
- 1 M☉, Benchmark unit
- Equal to mass of our Sun
The Sun
(NASA/ESA)
Spirograph Nebula
(NASA/ESA)
Hourglass Nebula
(NASA/ESA)
C-Type Carbon Star
Star Classification: C
Luminosity Classification: III
Temperature (K) : 3000
Mass: Typically 2–5 M☉ (initial mass)
Elemental Composition: Carbon-rich atmosphere, helium, nitrogen
Description: Cool giant stars with more carbon than oxygen, producing deep red color.
Birth: Red giant with carbon-rich atmosphere
Life: Cool, deep red, heavy element production
☠️ Death: Planetary nebula
Reincarnation: White dwarf
Example: La Superba, R Leporis
Luminosity Classes
Added to spectral types.
Indicates size & brightness:
- 0 or Ia+: Hypergiants
- I (Ia, Ib): Supergiants
- II: Bright Giants
- III: Regular Giants
- IV:Subgiants
- V: Main Sequence
- VI (sd): Subdwarfs
- D (VII): White Dwarfs
Galaxy in Orange
(Wiki Images)
Wolf-Rayet Star
(NASA/ESA)
Planetary Nebula (PN K 4-55)
(NASA/ESA)
