Instant · Precise · Universal
34 units available
6 categories total
To convert solar masses to kg: multiply by 1.98847 × 10³⁰.
M☉ = 1.98847 × 10³⁰ kg ≈ 333,000 M⊕ ≈ 1,048 M_Jupiter.
For example, 1 Sun's Mass (M☉) = 1.988470e+21 Teragram (Tg).
| Sun's Mass (M☉) | Teragram (Tg) |
|---|---|
| 0.1 | 1.988470e+20 |
| 0.5 | 9.942350e+20 |
| 1 | 1.988470e+21 |
| 2 | 3.976940e+21 |
| 5 | 9.942350e+21 |
| 10 | 1.988470e+22 |
| 25 | 4.971175e+22 |
| 50 | 9.942350e+22 |
| 100 | 1.988470e+23 |
| 500 | 9.942350e+23 |
| 1000 | 1.988470e+24 |
The solar mass is the mass of the Sun, approximately 1.989 × 10³⁰ kilograms — about 333,000 times the mass of Earth.
M☉ = 1.98847 × 10³⁰ kg ≈ 333,000 M⊕ ≈ 1,048 M_Jupiter.
To convert solar masses to kg: multiply by 1.98847 × 10³⁰.
Expressing stellar masses: Betelgeuse ≈ 15 M☉, Sirius ≈ 2 M☉, a typical neutron star ≈ 1.4 M☉.
The Sun loses about 5 million tonnes per second through nuclear fusion (E=mc²), but that's only 10⁻¹³ M☉ per year.
The Sun is losing mass continuously through radiation and solar wind — its mass is not quite constant over billions of years.
Almost everything in astronomy uses solar masses: stars (0.1–100 M☉), galaxies (10⁹–10¹² M☉), black holes (3–10⁹ M☉).
The teragram equals 10¹² grams or one million tonnes (one megatonne).
1 Tg = 10¹² g = 10⁹ kg = 10⁶ tonnes = 1 megatonne.
To convert Tg to tonnes: multiply by 10⁶. To convert Tg to Gg: multiply by 1,000.
Global carbon budgets (~10,000 Tg C/year from fossil fuels), volcanic eruption plume masses.
Earth's atmosphere has a total mass of about 5.15 × 10⁶ Tg (5.15 × 10¹⁸ kg).
Confusing Tg with Pg (petagram): 1 Pg = 1,000 Tg. Climate papers use both — check carefully.
Global CO₂ emissions ≈ 36,000 Tg/year (or 36 Pg/year). This is a key climate number to remember.



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