P/2010 A2 (linear) 08-01-2009

[gustavo muler]

Un nuevo cometa, descubierto ayer.

tiene una bonita coma de tres minutosal nor este.

un saludo !

gustavo.

[Meteoro]

Excelente Gustavo ! "salió con fritas eh! " descubierto ayer y ya lo has capturado!? tremendo !

[Carlos Colazo]

Hola Gustavo. Lindo cometa y muy débil, por cierto. Pregunto: la orientación de la cola, no es al W-NW, según la roseta de vientos que pusiste en la foto?. Carlos.

[gustavo muler]

Gracias!

si, parece que si, Meteoro !

saudos

[gustavo muler]

http://www.eso.org/public/news/eso9637/

[Clarisa]

Muy buen trabajo Gustavo. Se ve muy bien ese cometa.

Felicitaciones ! ! !

Saludos por allá.

[gustavo muler]

un placer

saludos, gustavo.

[gustavo muler]

le han tirado con el GTC !!!

aqui la IAUC

J. V. Scotti, Lunar and Planetary Laboratory, reports on additional CCD

images of this comet taken by R. S. McMillan with the Spacewatch 1.8-m f/2.7

reflector on Jan. 8.2 and 12.4 UT, in which there was no distinct nuclear

condensation, though the presumed location of the nucleus would be the

eastern end of the elongated coma structure. On Jan. 8, the coma size was

about 8" x 11", with a sharper edge on the northern boundary, and a long,

narrow tail extended to at least 4'.6 in p.a. 279 deg; a faint spike extended

0'.34 in p.a. 137 deg. Nine co-added images (effective integration time 1390

s) from Jan. 12 show the width of the elongated coma to be about 11", and its

length to be about 13" in p.a. 297 deg, with a tail at least 4'.8 long in

p.a. 278 deg.

J. Licandro, Instituto de Astrofisica de Canarias (IAC); G. P. Tozzi,

Istituto Nazionale di Astrofisica, Arcetri; and T. Liimets, Nordic Optical

Telescope (NOT) and Tartu Observatory, report that 5-min R- and V-band

exposures obtained on Jan. 14.945-14.985 UT in very good (0".6) seeing with

the 2.5-m NOT (+ ALFOSC) shows the presence of an asteroidal object 2" east

of (and moving at the same rate as) the uncondensed "dust swarm" of P/2010

A2, which itself is 4' long and about 5" wide (177000 and 3700 km,

respectively, at the comet's distance) in p.a. 277 deg. Licandro adds that

these observations suggest a connection between the asteroidal object and

the dust swarm; a short-lived event, such as a collision, may have produced

the observed dust ejecta. Together with A. Cabrera-Lavers and G. Gomez, IAC

and Gran Telescopio Canarias (GTC) Project Office, Licandro further writes

that a series of fifty-four 30-s images obtained on Jan. 16.070-16.133 with

the 10.4-m GTC (+ OSIRIS + g, r, and i Sloan filters) again shows the

asteroidal object about 2" to the east of the comet.

R. Haver and A. Caradossi, Frasso Sabino, Italy, report that the comet

appears as a tail 1'.8 long in p.a. 278 deg on Jan. 15.95 UT on CCD images

taken with a 0.37-m f/6.8 Cassegrain telescope; on Jan. 16.90, the tail

appeared longer (2'.7 in p.a. 276 deg). No condensation was visible with

this small an instrument. L. Buzzi, Varese, Italy, notes a 240" tail in

p.a. 279 deg on stacked CCD images (totally 35 min of exposure; limiting

mag 21.5) taken on Jan. 16.04-16.11 with a 0.60-m f/4.6 reflector.

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes

superseded by text appearing later in the printed IAU Circulars.

© Copyright 2010 CBAT

2010 January 20 (CBET 2134) Daniel W. E. Green

[gustavo muler]

la interesantísima imagen del Hubble...

saludos,

[FernandoTifner]

Sin duda va a ser una foto para el recuerdo. Una maravilla; el otro dia escuchaba a un investigador de Arecibo que hacía una reflexión sobre que somos las primeras generaciones de Humanos que podemos disfrutar de éstas imágenes y experiencias. Cuanto camino se tuvo que recorrer para llegar a ésto...

Saludos

Fernando Tifner

I32

www.frimecargentina.com.ar/betaorionis

[gustavo muler]

si, sin duda.

parece indicar todo a que ha sido fruto de algún hecho que este asteroide / cometa haya soltado material.

posiblemente (algo altamente improbable, segun se pensaba) la colision de dos asteroides.

saludos !

[tonio1907]

muy buen trabajo Gustavo,y en cuanto a la imagen del hubble INCREIBL.

saludos