Novas and supernovas effect on our habitat

Is it possible that Xian Cairo and Vera Cruz is aligned on an older
version of the equator?
They are certainly at close proximity, if a storm of charged particles
entered our solarsystem could they realign the suns and earths
magnetic field adjust earths tilt rotation and equator line?

http://www.solstation.com/stars/sirius2.htm
QUOTE:**********
Because ancient astronomers believed that Sirius was red in color as
late as 2,000 years ago, some investigators wonder if the system may
have a third stellar component, Sirius C, with about five percent of
Sol's mass that implies a spectral type M5-9 in a six-year elliptical
orbit around Sirius A (Benest and Duvent, 1995). A recent search for
faint companions using the Hubble Space Telescope found no supporting
evidence for a large Jupiter or brown dwarf sized object, although the
observed positions of Sirius AB -- Gl 244 AB -- differed from
published orbital elements (Schroeder et al, 2000).
END QUOTE*********

http://nrumiano.free.fr/Estars/fading.html
QUOTE:**********
The novae phenomenon
Consider a white dwarf as part of a binary system. If the other star
is overflowing its Roche's lobe, it means that its outer layers are
within the gravitational field of the white dwarf : the matter of the
envelope can be pulled away by the gravity of the white dwarf.

This matter will condense into an accretion disk around the white
dwarf, and fall upon its surface. When the temperature and the
pressure of this disk is high enough, a thermonuclear reaction will
arise, resulting in a light flash able to radiate as would 10,000
suns : this is called a nova, and can occur at more or less regular
intervals.
END QUOTE*********


So was there a reddish star in Sirius C (now a brown dwarf) or is it
just myth. Maybe it is the white dwarf that cause Sirius A to go Nova
within intervalls?
Could Sirius A going Nova with intervalls cause our Sol go beserk, and
cause havoc upon earth?

JT