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Dátum: 2013-11-28 15:00:18
Feladó: András Uhrin
Tárgy: Re: Lovejoy
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K=F6sz=F6n=F6m, ez megnyugtat=F3an, =E9s teljesen logikusan hangzik! (T=E9n=
yleg az
lenne a csoda, ha a k=F3ma apr=F3 porszemcs=E9i a Naphoz ennyire k=F6zel ne=
m
p=E1rologn=E1nak el... ha meg elp=E1rolognak, nem tudj=E1k visszaverni a na=
pf=E9nyt,
stimmel.)


=DCdv,
Andr=E1s


2013/11/28 "S=E1rneczky, Kriszti=E1n"

>
> > 02:06 UT-kor (ill. b=E1rmelyik, a nap els=F5 =F3r=E1iban k=E9sz=FClt k=
=E9pen) b=F5ven
> > m=EDnuszos, a t=FAlcsordul=F3 pixelek alapj=E1n legal=E1bb olyan, mint =
amikor a
> > Jupiter l=E1tszik a k=E9pen:
> >
> http://sohowww.nascom.nasa.gov//data/REPROCESSING/Completed/2013/c3/20131=
128/20131128_0206_c3_1024.jpg
> >
> > A leg=FAjabb, 12:54 UT-s k=E9pen alig-alig f=E9nyesebb az Antaresn=E9l:
> >
> http://sohowww.nascom.nasa.gov//data/REPROCESSING/Completed/2013/c3/20131=
128/20131128_1254_c3_1024.jpg
>
> A halv=E1nyod=E1st jelezt=E9k egy tegnapi k=F6rlev=E9lben, nem felt=E9tle=
n=FCl jelent
> rosszat:
>
> " J. N. Marcus, St. Louis, MO, U.S.A., writes: "Considerable sublimation
> of submicron-size silicate dust grains can be expected to occur in the
> coma and tail of comet C/2012 S1 near perihelion, if its behavior is
> similar to that of sungrazing comet C/2011 W3 (Lovejoy), whose nucleus
> survived for a few days beyond perihelion (see Sekanina and Chodas 2012,
> Ap.J. 757, 127). If C/2012 S1 can survive until its perihelion passage,
> then its brightness, based upon my preliminary photometry of C/2011 W3
> in the SOHO LASCO C3 and C2 coronagraph fields, should start to fall
> below any power-law formula at about r =3D 0.1 AU (Nov. 27.8 UT), peak at
> magnitude -1 to -3 at r =3D 0.03-0.04 AU (Nov. 28.5-28.6), and then
> decline by 2 or more magnitudes by the time of perihelion passage on
> Nov. 28.8 (details of my study of photometric behavior of near-sun
> comets will be submitted to the ICQ soon). Thus, a strong falloff in
> brightness at these times should not necessarily be construed as
> disintegration of the nucleus. After perihelion, the comet´s brightness
> would temporarily increase as submicron grains re-populate the coma and
> dust tail."
>
> Sry
>
>
> ________________________________________________________________________
>
> A csatolm=E1nyk=E9nt k=FCld=F6tt k=E9peket k=E9rj=FCk, m=E9retezd =E1t =
=FAgy, hogy a
> hosszabbik oldaluk legfeljebb 800 pixeles legyen! K=F6sz=F6nj=FCk!
>
> =C1ltal=E1nos inform=E1ci=F3k =E9s tan=E1csok a k=E9pbek=FCld=E9ssel kapc=
solatban:
>
> http://meteor.mcse.hu/digitalis_kepek.html
> ________________________________________________________________________
>
> Leonidak levelez=F5lista - =C9szlel=F5 amat=F5rcsillag=E1szok f=F3ruma
> Hozz=E1sz=F3l=E1sok: Leonidak@mcse.hu
> Listakezel=F5 utas=EDt=E1sok: Leonidak-request@mcse.hu
> Arch=EDvum, be=E1ll=EDt=E1sok: http://mailman.mcse.hu/mailman/listinfo/le=
onidak
>

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Content-Transfer-Encoding: quoted-printable

K=F6sz=F6n=F6m, ez megnyugtat=F3an, =E9s teljese=
n logikusan hangzik! (T=E9nyleg az lenne a csoda, ha a k=F3ma apr=F3 porsze=
mcs=E9i a Naphoz ennyire k=F6zel nem p=E1rologn=E1nak el... ha meg elp=E1ro=
lognak, nem tudj=E1k visszaverni a napf=E9nyt, stimmel.)



=DCdv,
Andr=E1s
=


2013/11/28 "S=E1rneczky, Kriszti=E1=
n" < " target=3D"_blank">sky@titan.physx.u-szeged.hu>

x #ccc solid;padding-left:1ex">


> 02:06 UT-kor (ill. b=E1rmelyik, a nap els=F5 =F3r=E1iban k=E9sz=FClt k=
=E9pen) b=F5ven

> m=EDnuszos, a t=FAlcsordul=F3 pixelek alapj=E1n legal=E1bb olyan, mint=
amikor a

> Jupiter l=E1tszik a k=E9pen:

> /2013/c3/20131128/20131128_0206_c3_1024.jpg" target=3D"_blank">http://sohow=
ww.nascom.nasa.gov//data/REPROCESSING/Completed/2013/c3/20131128/20131128_0=
206_c3_1024.jpg



>

> A leg=FAjabb, 12:54 UT-s k=E9pen alig-alig f=E9nyesebb az Antaresn=E9l=
:

> /2013/c3/20131128/20131128_1254_c3_1024.jpg" target=3D"_blank">http://sohow=
ww.nascom.nasa.gov//data/REPROCESSING/Completed/2013/c3/20131128/20131128_1=
254_c3_1024.jpg





A halv=E1nyod=E1st jelezt=E9k egy tegnapi k=F6rlev=E9lben, nem felt=
=E9tlen=FCl jelent

rosszat:



" J. N. Marcus, St. Louis, MO, U.S.A., writes: "Considerable subl=
imation

of submicron-size silicate dust grains can be expected to occur in the

coma and tail of comet C/2012 S1 near perihelion, if its behavior is

similar to that of sungrazing comet C/2011 W3 (Lovejoy), whose nucleus

survived for a few days beyond perihelion (see Sekanina and Chodas 2012, >
Ap.J. 757, 127). If C/2012 S1 can survive until its perihelion passage,

then its brightness, based upon my preliminary photometry of C/2011 W3

in the SOHO LASCO C3 and C2 coronagraph fields, should start to fall

below any power-law formula at about r =3D 0.1 AU (Nov. 27.8 UT), peak at r>
magnitude -1 to -3 at r =3D 0.03-0.04 AU (Nov. 28.5-28.6), and then

decline by 2 or more magnitudes by the time of perihelion passage on

Nov. 28.8 (details of my study of photometric behavior of near-sun

comets will be submitted to the ICQ soon). Thus, a strong falloff in

brightness at these times should not necessarily be construed as

disintegration of the nucleus. After perihelion, the comet's brightness=


would temporarily increase as submicron grains re-populate the coma and

dust tail."



Sry





________________________________________________________________________ >


A csatolm=E1nyk=E9nt k=FCld=F6tt k=E9peket k=E9rj=FCk, m=E9retezd =E1t =FAg=
y, hogy a

hosszabbik oldaluk legfeljebb 800 pixeles legyen! K=F6sz=F6nj=FCk!



=C1ltal=E1nos inform=E1ci=F3k =E9s tan=E1csok a k=E9pbek=FCld=E9ssel kapcso=
latban:



ht=
tp://meteor.mcse.hu/digitalis_kepek.html


________________________________________________________________________ >


Leonidak levelez=F5lista - =C9szlel=F5 amat=F5rcsillag=E1szok f=F3ruma

Hozz=E1sz=F3l=E1sok: Leonidak@mcse.hu a>

Listakezel=F5 utas=EDt=E1sok:
L=
eonidak-request@mcse.hu


Arch=EDvum, be=E1ll=EDt=E1sok: stinfo/leonidak" target=3D"_blank">http://mailman.mcse.hu/mailman/listinfo/=
leonidak





--001a11c264a43b961904ec3d222b--

________________________________________________________________________

A csatolmányként küldött képeket kérjük, méretezd át úgy, hogy a
hosszabbik oldaluk legfeljebb 800 pixeles legyen! Köszönjük!

Általános információk és tanácsok a képbeküldéssel kapcsolatban:

http://meteor.mcse.hu/digitalis_kepek.html
________________________________________________________________________

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