absolute magnitude

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absolute magnitude

n.
The intrinsic brightness of a celestial body, measured in magnitudes, computed as if viewed from a distance of 10 parsecs, or 32.6 light years.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

absolute magnitude

n
(Astronomy) the apparent magnitude a given star would have if it were situated at a distance of 10 parsecs (32.6 light years) from the earth
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ab′solute mag′nitude


n.
the magnitude of a star as it would appear to a hypothetical observer at a distance of 10 parsecs or 32.6 light-years.
[1900–05]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

absolute magnitude

A star’s size when seen from a distance of 10 parsecs.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.absolute magnitude - (astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32.62 light years) from the earthabsolute magnitude - (astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32.62 light years) from the earth
magnitude - the property of relative size or extent (whether large or small); "they tried to predict the magnitude of the explosion"; "about the magnitude of a small pea"
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
And each cluster contains 50 galaxies within two magnitudes of their dominant members, M87 in Virgo and NGC 3311 in Hydra, both supergiant ellipticals with comparable absolute magnitudes.
Such estimates can be used to extend the visual light curves, and hence derive more accurate absolute magnitudes, and to derive equivalent parameters for fainter comets.
The distribution of their absolute magnitudes shows twin peaks, one at -8.8 and a second at -7.5.
As discussed earlier (and detailed in Appendix B), the absolute magnitudes of the coefficients are less than the theoretical value of 1 because of the measurement error in the independent variables, and the downward bias is greater for the coefficients on past and future cash flows.
If a distance of 1.57 kiloparsecs is used for NGC 6210 then the absolute magnitudes of this object are: -1.28, -1.90, -1.32 and -0.63 for the B, V, R and I filters respectively.
The absolute magnitudes of warp deformation ranged from 1.3 x [10.sup.3] [mu]in (33.5 [mu]m) for a 0.040" base flange assembled using AgCu/86O processing (package assembly no.
We note that reflection is only detectable for those variables with large absolute magnitudes [ILLUSTRATION FOR FIGURE 1 OMITTED].
UFO Orbit computed the start and end heights of 16 Q2 Geminid meteors and their absolute magnitudes, captured between Dec 10 and 13 (see Figure 4).
Discovered by Japanese amateur Koichi Itagaki on October 9, 2006, and independently by Tim Puckett and Roberto Gorelli, it peaked at an absolute magnitude of -18.3, more luminous than many core-collapse supernovae, which have absolute magnitudes of about -16.5.
Such estimates can be used to extend the visual lightcurves, and hence derive more accurate absolute magnitudes.
One way to compare the greatness of comets is by their absolute magnitudes: how they would have appeared at a distance of 1 astronomical unit from both the Sun and Earth.
-- Roger Dymock, 'Absolute magnitudes of asteroids 1176 Lucidor and 2093 Genichesk', 37(2), 56 (2010);