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[Database Corrections] Why is Comet NeoWise Magnitude Incorrect? (Answer: Why Is The Magnitude For Comet 289P So Far Off? (Answer: SkySafari Gets Asteroid, Comet And Satellite Data From MinorPlanetCenter.Net)

John Taylor

July 05, 2020 01:53

Answered

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I use SkySafari 6 Pro. My solar system bodies are current as of 4 July 2020. Comet Neowise is showing up as a Mag 9.6 object. Its current observed magnitude is 1.2. I can't find the comet data files to adjust the absolute magnitude and slope values so that the estimate comes in line with all the other planetarium software titles I use. Thank you.

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4 comments

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  Keiron Smith July 06, 2020 19:37

  Hi John, 

  SkySafari gets the asteroid, comet, and satellite data from MinorPlanetCenter.Net

  Why Is The Magnitude For Comet 289P So Far Off? (Answer: SkySafari Gets Asteroid, Comet And Satellite Data From MinorPlanetCenter.Net)

  They will update and get it right (hopefully soon).

  Thanks!

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  John Taylor July 06, 2020 22:18

  Hi Keiron,

  I was actually asking for the location of the comet data file in the ss6 folder on my phone so that I can manually change the magnitude and slope numbers to come in line with what they should be.

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  Keiron Smith July 08, 2020 19:02

  Sorry, John, the comet data file is not accessible.

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  Pedro Braganca July 10, 2020 21:32

  Hi John,

  I contacted the Minor Planet Center yesterday and they updated the magnitude.  Just pull the latest data by going to Settings-Solar System (scroll to the bottom) and Update Minor Planet Data.