Talk:Wolf 424

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The following paper conflicts with the masses that were apparently copied from the SolStation site:

  • Heintz, W. D., "The Substellar Masses of WOLF:424", ASTRONOMY AND ASTROPHYS. V.217, NO.1/2 JUN(II), P. 145, 1989.

So it is unclear which is correct. — RJH 20:54, 23 August 2005 (UTC)

  • Okay, this was addressed in a later paper which I have now cited. — RJH 21:08, 23 August 2005 (UTC)

I also stumbled over the inconsistent mass data. List_of_least_massive_stars has the lower numbers. To make the inconsistency more obvious to readers I reconverted the (lower) jupiter figures back to solar masses. Maybe someone should write some words about the discrepancy. Darsie from german wiki pedia (talk) 19:54, 23 August 2009 (UTC)

There's another: "approximately 0.14 solar masses (63 Jupiters (0.060 solar masses))...approximately 0.13 solar masses (52 Jupiters (0.050 solar masses))" Now, I can't tell if that means Jupiter =.05-06 MSol, or if the Wolf dwarf(s) are, or what. And if it's Jupiter meant, why is there variability in the conversion? A clarification, with source, by somebody who understands this, is definitely required. TREKphiler any time you're ready, Uhura 09:02, 26 December 2009 (UTC)

By reference to this page: one can see that, contrary to the previous consensus about those masses, Wulff Heintz in 1989 proposed the smaller numbers, which were subsequently disputed in 1991. Torres' numbers of 1999-- --may be considered the best at the present time. mrh

BTW, the mass of Jupiter is 1/1047ths that of our Sun, for reference. —Preceding unsigned comment added by Graywyvern (talkcontribs) 00:49, 7 April 2010 (UTC)

Masses 0.14 and 0.13 M are what actually mentioned in the sources and these numbers are consistent with the spectral classes of the stars (see the article about the main sequence and referencies therein). So I think there was no contradiction, but just a simple error in converting solar mass into Jovian. GenyAncalagon (talk) 07:36, 27 May 2010 (UTC)

Close approach[edit]

I could find nothing to corroborate this paragraph, so I removed it from the article:

Due to its proximity and fast motion towards the Sun, Wolf 424 will brighten by more than 2% over the course of the 21st century. In approximately 7700 years, it will make its nearest approach at a distance of about 1 light year and passing through the distant reaches of the solar system[citation needed], and will become the nearest stars.

Since it lacks a HIP number, I don't believe this star was even measured by the Hipparcos satellite.–RJH (talk) 15:22, 28 October 2009 (UTC)

It's in Hipparcos here:

under "FL Virginis". mrh —Preceding unsigned comment added by Graywyvern (talkcontribs) 01:02, 7 April 2010 (UTC)

Wolf 424 was reported to have a huge radial velocity towards Earth, just under 600 km/s, IIRC. Since it's now 2 km/s, I gather there's some massive error somewhere. -- KarlHallowell (talk) 15:29, 29 November 2010 (UTC)