<p>From the page titled, "Absolute Magnitude" and with the disclaimer on that page "not about the magazine,"  [emphasis mine to aid in finding the info]</p>

<blockquote>
  <p>Absolute magnitude is the measure of intrinsic brightness of a
  celestial object. It is the hypothetical apparent magnitude of an
  object at a standard distance of exactly 10 parsecs (32.6 light years)
  from the observer, assuming no astronomical extinction of starlight.
  This places the objects on a common basis and allows the true energy
  output of astronomical objects to be compared without the distortion
  introduced by distance. As with all astronomical magnitudes, the
  absolute magnitude can be specified for different wavelength
  intervals; for stars the most commonly quoted absolute magnitude is
  the absolute visual magnitude, which uses only the visual (V) band of
  the spectrum (UBV system). Also commonly used is the <strong>absolute
  bolometric magnitude</strong>, which is the total luminosity expressed in
  magnitude units that takes into account energy radiated at all
  wavelengths, whether visible or not.</p>
</blockquote>

<p>So in short, AbsMag is Visual Luminosity and AbsBol is Total Luminosity, Visual and Otherwise. (from comment by MiscellaneousUser)</p>

CC BY-SA 3.0
2017-01-30T19:44:14.123Z
So in short, AbsMag is Visual Luminosity and AbsBol is Total Luminosity, Visual and Otherwise.
MiscellaneousUser
CC BY-SA 3.0
2017-01-30T14:03:51.400Z
2017-05-31T05:40:08.850Z
2017-05-31T05:40:08.850Z
Carl Witthoft
<p>What is the difference between Absolute Magnitude and Absolute Bolometric Magnitude, is it a case of multiply one by a constant to get the other?  Can you give an example for a star, say Vega?</p>

CC BY-SA 3.0
2017-01-29T16:34:57.847Z
Sorry, no homework.
AtmosphericPrisonEscape
CC BY-SA 3.0
2017-01-29T16:48:25.720Z
Homework is accepted if you 1. self-identify as homework. 2. Clearly describe what research you have done already. 3. Clearly identify a specific problem
James K
CC BY-SA 3.0
2017-01-29T19:18:56.290Z
Not homework, I had another question open where Bolometric Magnitude was mentioned by James that I decided to not ask there but ask in a different question.
MiscellaneousUser
<star><magnitude>
Absolute Magnitude and Absolute Bolometric Magnitude
MiscellaneousUser
# Absolute Magnitude and Absolute Bolometric Magnitude

(Asked by: username_0 on 2017-01-29)

What is the difference between Absolute Magnitude and Absolute Bolometric Magnitude, is it a case of multiply one by a constant to get the other? Can you give an example for a star, say Vega?

**Tags:** star, magnitude
> **Comments:**
> **username_1**: Sorry, no homework.  
> **username_2**: Homework is accepted if you 1. self-identify as homework. 2. Clearly describe what research you have done already. 3. Clearly identify a specific problem  
> **username_0**: Not homework, I had another question open where Bolometric Magnitude was mentioned by James that I decided to not ask there but ask in a different question.  

---

## 1 answers

### Answer by username_3 on 2017-01-30. Score: 1

From the page titled, "Absolute Magnitude" and with the disclaimer on that page "not about the magazine," [emphasis mine to aid in finding the info]

> Absolute magnitude is the measure of intrinsic brightness of a
> celestial object. It is the hypothetical apparent magnitude of an
> object at a standard distance of exactly 10 parsecs (32.6 light years)
> from the observer, assuming no astronomical extinction of starlight.
> This places the objects on a common basis and allows the true energy
> output of astronomical objects to be compared without the distortion
> introduced by distance. As with all astronomical magnitudes, the
> absolute magnitude can be specified for different wavelength
> intervals; for stars the most commonly quoted absolute magnitude is
> the absolute visual magnitude, which uses only the visual (V) band of
> the spectrum (UBV system). Also commonly used is the **absolute
> bolometric magnitude**, which is the total luminosity expressed in
> magnitude units that takes into account energy radiated at all
> wavelengths, whether visible or not.

So in short, AbsMag is Visual Luminosity and AbsBol is Total Luminosity, Visual and Otherwise. (from comment by MiscellaneousUser)

> **Comments:**
> **username_0**: So in short, AbsMag is Visual Luminosity and AbsBol is Total Luminosity, Visual and Otherwise.  

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