16:0416:04, 20 September 2018diffhist+205
m
Albedo
Adding Earth and Mars Bond albedos. Note: these are from "Planet" Fact Sheets which do not contain specific references for the albedo values they quote. So, they should be replaced when the original journal articles are located.
20:1620:16, 13 September 2018diffhist−685
m
Apparent magnitude
Updated apparent planetary magnitudes with values from a peer-reviewed journal article. Those formulas will be used to predict magnitudes for future issues of The Astronomical Almanac published by the U.S. Naval Observatory and Her Majesty’s Nautical Almanac Office. The equations were solved at daily intervals over long periods of time in order to determine the magnitude extremes. The paper can be located at can be located at https://doi.org/10.1016/j.ascom.2018.08.002.
18:1418:14, 13 September 2018diffhist−137
m
Mercury (planet)
In the 'observation' section, the mean apparent magnitude and its standard deviation were added. One reference, "ephemeris", was removed because it is not used for the values being cited.
17:5617:56, 13 September 2018diffhist+268
m
Neptune
In the ‘observation’ section, added the mean apparent magnitude and its standard deviation. Also added a reference for the secular brightness increase.
17:4017:40, 13 September 2018diffhist+432
m
Uranus
In the ‘visibility’ section, added the mean apparent magnitude and its standard deviation. Explained that the apparent brightness depends in part on the latitudes being illuminated from the Sun and viewed from the Earth.
17:1117:11, 13 September 2018diffhist+398
m
Saturn
In the ‘observation’ section, replaced the qualitative statement about magnitude being ‘usually between +1 and 0’ with the actual mean, standard deviation, brightest and faintest. Also explained that most of the variation is due to the inclination of the ring system.
16:0816:08, 13 September 2018diffhist+142
m
Mars
Please see the 'talk' area for this article for a description of the changes made to the 'viewing' section.
20:0020:00, 10 September 2018diffhist+124
m
Neptune
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
19:5519:55, 10 September 2018diffhist+167
m
Neptune
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
19:3319:33, 10 September 2018diffhist+299
m
Uranus
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
19:0819:08, 10 September 2018diffhist+347
m
Saturn
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
18:5418:54, 10 September 2018diffhist+425
m
Jupiter
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
16:4516:45, 10 September 2018diffhist+325
m
Mars
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
14:5014:50, 10 September 2018diffhist+276
m
Venus
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
14:0014:00, 10 September 2018diffhist+308
m
Mercury (planet)
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
16:0416:04, 20 September 2018diffhist+205
m
Albedo
Adding Earth and Mars Bond albedos. Note: these are from "Planet" Fact Sheets which do not contain specific references for the albedo values they quote. So, they should be replaced when the original journal articles are located.
20:1620:16, 13 September 2018diffhist−685
m
Apparent magnitude
Updated apparent planetary magnitudes with values from a peer-reviewed journal article. Those formulas will be used to predict magnitudes for future issues of The Astronomical Almanac published by the U.S. Naval Observatory and Her Majesty’s Nautical Almanac Office. The equations were solved at daily intervals over long periods of time in order to determine the magnitude extremes. The paper can be located at can be located at https://doi.org/10.1016/j.ascom.2018.08.002.
18:1418:14, 13 September 2018diffhist−137
m
Mercury (planet)
In the 'observation' section, the mean apparent magnitude and its standard deviation were added. One reference, "ephemeris", was removed because it is not used for the values being cited.
17:5617:56, 13 September 2018diffhist+268
m
Neptune
In the ‘observation’ section, added the mean apparent magnitude and its standard deviation. Also added a reference for the secular brightness increase.
17:4017:40, 13 September 2018diffhist+432
m
Uranus
In the ‘visibility’ section, added the mean apparent magnitude and its standard deviation. Explained that the apparent brightness depends in part on the latitudes being illuminated from the Sun and viewed from the Earth.
17:1117:11, 13 September 2018diffhist+398
m
Saturn
In the ‘observation’ section, replaced the qualitative statement about magnitude being ‘usually between +1 and 0’ with the actual mean, standard deviation, brightest and faintest. Also explained that most of the variation is due to the inclination of the ring system.
16:0816:08, 13 September 2018diffhist+142
m
Mars
Please see the 'talk' area for this article for a description of the changes made to the 'viewing' section.
20:0020:00, 10 September 2018diffhist+124
m
Neptune
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
19:5519:55, 10 September 2018diffhist+167
m
Neptune
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
19:3319:33, 10 September 2018diffhist+299
m
Uranus
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
19:0819:08, 10 September 2018diffhist+347
m
Saturn
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
18:5418:54, 10 September 2018diffhist+425
m
Jupiter
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
16:4516:45, 10 September 2018diffhist+325
m
Mars
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
14:5014:50, 10 September 2018diffhist+276
m
Venus
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.
14:0014:00, 10 September 2018diffhist+308
m
Mercury (planet)
The revised values of brightest and faintest apparent magnitudes are taken from a peer-reviewed journal article recently published in Astronomy and Computing.