Solar flux units to janskys
Type a value in sfu to get it in Jy instantly.
3.63×10⁻⁷Jy
That's 100× as bright as the faintest galaxies in Hubble’s deep fields, while the faintest star the eye can see is 39,821,684× brighter.
What it means
How bright is that source?
AB magnitudes are defined per unit frequency. Vega-system magnitudes differ by a band-dependent offset; references are rough visual values.
The math
How to convert sfu to Jy
To convert solar flux units to janskys, multiply by 10,000.
Example: 3.63×10⁻¹¹ sfu × 10,000 = 3.63×10⁻⁷ Jy.
In the other direction, 1 Jy = 0.0001 sfu.
Every unit
That flux density in every unit
Tables
sfu to Jy conversion table
| sfu | Jy |
|---|---|
| 3.63×10⁻¹³ sfu | 3.63×10⁻⁹ Jy |
| 2.29×10⁻¹² sfu | 2.29×10⁻⁸ Jy |
| 3.63×10⁻¹¹ sfu | 3.63×10⁻⁷ Jy |
| 3.63×10⁻¹⁰ sfu | 3.63×10⁻⁶ Jy |
| 3.63×10⁻⁹ sfu | 3.63×10⁻⁵ Jy |
| 1×10⁻⁷ sfu | 0.001 Jy |
| 3.63×10⁻⁷ sfu | 0.00363 Jy |
| 3.63×10⁻⁵ sfu | 0.363 Jy |
| 0.00363 sfu | 36.3 Jy |
| 0.363 sfu | 3,630 Jy |
| 36.3 sfu | 363,000 Jy |
Jy to sfu conversion table
| Jy | sfu |
|---|---|
| 3.63×10⁻⁹ Jy | 3.63×10⁻¹³ sfu |
| 2.29×10⁻⁸ Jy | 2.29×10⁻¹² sfu |
| 3.63×10⁻⁷ Jy | 3.63×10⁻¹¹ sfu |
| 3.63×10⁻⁶ Jy | 3.63×10⁻¹⁰ sfu |
| 3.63×10⁻⁵ Jy | 3.63×10⁻⁹ sfu |
| 0.001 Jy | 1×10⁻⁷ sfu |
| 0.00363 Jy | 3.63×10⁻⁷ sfu |
| 0.363 Jy | 3.63×10⁻⁵ sfu |
| 36.3 Jy | 0.00363 sfu |
| 3,630 Jy | 0.363 sfu |
| 363,000 Jy | 36.3 sfu |
Quick answers
Quick answers
- How many Jy is 1 sfu?
- 1 sfu is 10,000 Jy.
- How many Jy is 10 sfu?
- 10 sfu is 100,000 Jy.
- How many Jy is 3.63×10⁻¹¹ sfu?
- 3.63×10⁻¹¹ sfu is 3.63×10⁻⁷ Jy.
The units
About these units
Solar flux units (sfu)
10⁴ Jy, used for the Sun’s radio flux.
Janskys (Jy)
10⁻²⁶ W m⁻² Hz⁻¹.
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