User talk:Abyssoft

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Welcome!

Hello, Abyssoft, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are some pages that you might find helpful:

I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your name and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or place {{helpme}} on your talk page and someone will show up shortly to answer your questions. Again, welcome!  --Storm Horizon 19:06, 5 July 2006 (UTC)

NEO masses[edit]

Hi Abbysoft, I just noticed your comment in List of solar system objects by mass:

Masses for NEOs listed in the table come from the JPL Near Earth Object Program.

You wouldn't happen to have a weblink or reference for that, would you? It would go very well in the article, for e.g. tracking down future NEO discoveries of interest. See you. Deuar 22:25, 3 September 2006 (UTC)

Right, that's the link to the NEO program homepage. Do they actually list masses somewhere in there? If as I suspect not, are they just calculated based on the size and an assumed density? Then it'd be good to a) know what is that assumed density, and b) indicate in the list that it's just a very rough estimate by using a tilde. Cheers, Deuar 17:50, 4 September 2006 (UTC)

Re your recent additions of asteroid mass estimates: most of these are only order-of-magnitude numbers, from approximate sizes and densities as Deuar said. The NEO database at JPL lists both those numbers and measured masses for all objects. In most cases, there is the order-of mass and the measured mass is flagged not available.Michaelbusch 19:11, 4 September 2006 (UTC)

Many neo's have individual pages. Here are a few examples...

Name Mass in kg Page
2000 SG344 ~(7.1e+07 kg) http://neo.jpl.nasa.gov/risk/2000sg344.html
2004 VD17 ~(2.6e+11 kg) http://neo.jpl.nasa.gov/risk/2004vd17.html
1994 GK ~(1.5e+08 kg) http://neo.jpl.nasa.gov/risk/1994gk.html

Abyssoft 20:59, 4 September 2006 (UTC)

  1. REDIRECT User:Abyssoft/archive/pre-oct2008

Radioactive Decay Chains[edit]

You said: "I'm currently working on a comprehensive Periodic Decay Chart from n to uuo including all forms of decay that I can find".

Thank you for volunteering for this Herculean task. I don't know if such a thing exists on Wikipedia, but I believe the Encyclopedia Britannica had such a chart back in the 1960s, when there were fewer known elements (and far fewer isotopes). There were even fewer decay modes (no double-beta!).

And now your chart can go to Oganesson instead of uuo.

76.254.31.171 (talk) 04:21, 13 January 2017 (UTC)


I am continuing on this task although work has slowed considerable due to life's constraints. Abyssoft (talk) 15:11, 13 January 2017 (UTC)