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COMET OBSERVATIONS - Cometary Section of LIADA.

Home Members Photo Gallery V IWCA & III LIADA SYMPOSIUM IV LIADA SYMPOSIUM

Comet Observations, Photos & News.

Members of the Cometary Section of LIADA have a long history of providing quality comet observations.
Please send me observations, they will be used in the reports on comets which appear in this web and "RASTREADORES DE COMETAS" in http://cometas.liada.net/
All can use the information published in this site. If you would like to submit by email you should use Morris format if possible.
Regular contributors include Juan José González, Seiichi Yoshida, Carlos Labordena, David Seargent, Jose G. Aguiar, Michael Mattiazzo, Alfons Diepvens, John Drummond, Alexandre Amorim, Toni Scarmato, Sergey E. Shurpakov, Willian Souza, Francisco Rodríguez, Rafael Benavides and others colleagues.

RECENT OBSERVATIONS

Spanish Version: http://cometas.liada.net

Last Updated: January 6, 2012.

C/2011 W3 (Lovejoy)
2012 Jan. 06.292 UT: m1=8.5, Dia.=7', DC=1, cauda 1º em AP 210 graus; 20X100 B; Marco Goiato (Araçatuba, Brasil) [altitude do cometa: 19º]
2012 Jan. 04.69 UT: m1=7.1, Tail= 31 degrees in PA= 221 degrees; 6x35 B & Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Tail very faint in a very clear sky]
2012 Jan. 04.312 UT: m1=8.1, Dia.=5', DC=2; 20X100 B; Marco Goiato (Araçatuba, Brasil) [altitude do cometa: 20º]
2012 Jan. 03.68 UT: m1=6.9, Tail= 20 degrees in PA= 218 degrees; 6x35 B; David A. J. Seargent (Cowra, NSW, Australia) [Tail very faint. barely glimpsed using averted vision. Patches of high cloud, but cleared from region of comet.]
2012 Jan. 03.28 UT: m1=6.6; 11x80 B; Jose G. de S. Aguiar (Campinas, Brazil)
2012 Jan. 02.69 UT: Tail= 42 degrees in PA= 224 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Head of comet hidden by high cloud, but tail more readily visible than previous morning]
2012 Jan. 02.29 UT: m1=6.3; 11x80 B; Jose G. de S. Aguiar (Campinas, Brazil)
2012 Jan. 02.271 UT: m1=6.5, Dia.=12', DC=3, cauda 10º em AP 225 graus; 7X50 B; Marco Goiato (Araçatuba, Brasil) [Nuvens, altitude do cometa: 13º]
2012 Jan. 01.68 UT: m1=6.7; 6x35 B; David A. J. Seargent (Cowra, NSW, Australia) [Coma just a slight intensification and "swelling" at end of tail. May be a little more differentiated from rest of tail than in early observations as it maintains its general form while tail fades]
2012 Jan. 01.68 UT: m1=6.7, Tail: 26 degrees in PA= 222 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Tail considerably fainter than previous morning (though sky may not have been quite as transparent). Only clearly seen using averted vision.]
2011 Dec. 31.67 UT: m1=6.6, Dia.=18', DC=0; 6x35 B; David A. J. Seargent (Cowra, NSW, Australia)
2011 Dec. 31.67 UT: Tail: 39 degrees in PA: 223 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Tail clear of most of Milky Way. Very faint, but with averted vision extended well beyond Musca into Carina. Limiting stellar magnitude near end of tail was about 6.5]
2011 Dec. 30.69 UT: m1=6.4; 6x35 B; David A. J. Seargent (Cowra, NSW, Australia)
2011 Dec. 30.69 UT: Tail: 26 degrees in PA: 225 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Tail fainter than previous mornings. Noticeably less intense than Small Magellanic Cloud]
2011 Dec. 30.31 UT: m1=5.8; 11x80 B; Jose G. de S. Aguiar (Campinas, Brazil)
2011 Dec. 29.70 UT: m1=6.3, Dia.=14'; DC=0; 6x35 B; David A. J. Seargent (Cowra, NSW, Australia)
2011 Dec. 29.70 UT: Tail: 34 degrees in PA: 230 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Tail at brightest part slightly less intense than Small Magellanic Cloud]
2011 Dec. 29.30 UT: m1=5.6; 11x80 B; Jose G. de S. Aguiar (Campinas, Brazil)
2011 Dec. 29.28 UT: m1=5.0, Dia.=15', DC=1, tail= 5 deg in P.A. 230.; 10x50 B; Alexandre Amorim (Florianopolis, Brazil) [comet alt. 21 deg, tail= 15 deg through naked eye]
2011 Dec. 28.71 UT: m1=6.5; 6x35 B; David A. J. Seargent (Cowra, NSW, Australia)
2011 Dec. 28.71 UT: Tail: 32 degrees in PA: 230 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Essentiall a headless tail as seen naked eye]
2011 Dec. 28.30 UT: m1=4.9, Dia.=15', DC=1, tail >30deg in PA 225 deg.; 7x50 B; Willian Souza (Maresias, Brazil)
2011 Dec. 28.30 UT: m1=5.2; 11x80 B; Jose G. de S. Aguiar (Campinas, Brazil)
2011 Dec. 27.63 UT: Tail: 27 degrees; David A. J. Seargent (Cowra, NSW, Australia) [More difficult against background of Milky Way band]
2011 Dec. 27.31 UT: m1=5.0, Dia.=12’, DC=1, Cola: 35º en AP 135º; 10X50 B y a simple vista; Alberto Anunziato (Oro Verde, Argentina) [Mét.Sidgwick, Cat. Tycho II]
2011 Dec. 27.31 UT: m1=4.9; 11x80 B; Jose G. de S. Aguiar (Campinas, Brazil)
2011 Dec. 26.69 UT: m1=5.3, Dia.=4’; DC=0: 25x100 B; David A. J. Seargent (Cowra, NSW, Australia) [Coma appeared as a slight brightening of nebulous sunward end of tail. Transparent and totally diffuse]
2011 Dec. 26.69 UT: Tail: 37 degrees in PA: 230 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Tail fairly uniform over most of its length and slightly more intense than Small Magellanic Cloud]
2011 Dic. 26.292 UT: m1=3.5, Dia.=15’, DC=2, Cola: 28º; simple vista y 15x70 B; Mariano Ribas (Chascomús, Pcia. de Buenos Aires, Argentina). [Cielo despejado. MALE: 6.1 Coma a 10º sobre horizonte SE, Sol 17º debajo del horizonte. El cometa luce más pálido que hace dos días, aunque la cola parece extenderse varios grados más, probablemente a causa de la mayor altura sobre el horizonte. La coma mantiene brillo suave y parejo, practicamente sin condensación alguna. La cola comenzó a asomar dos hora antes de la salida de la coma)
2011 Dec. 24.69 UT: m1=4.8, Tail: 28 degrees in PA: 240 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia)
2011 Dez. 24.312 UT: m1=3.8, Dia.=10', DC=3, cauda 20º em AP 260 graus; 7X50 B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico (sol: -15° altitude), altitude do cometa: 5º, extinção atmosférica aplicada]
2011 Dic. 24.302 UT: m1=3.0, Dia.=15’, DC=2, Cola: 22º en AP: 240º; a simple vista, 10x50 y 15x70 B; Mariano Ribas (Rawson, Provincia de Buenos Aires, Argentina) [Cielo completamente despejado en la zona del cometa, y con moderada nubosidad en la zona Norte y Oeste. La coma, a 8º sobre el horizonte SE, luce extremadamente suave, pareja, casi transparente. Sin señales de un nucleo puntual y definido. La cola comenzó a verse una hora antes de la salida de la coma del cometa. MALE 6.2)
2011 Dic. 24.277 UT: m1=2.4, Dia.=15’, DC=2, Cola: 24º en AP: 235º, Ancho 30’; a simple vista y 7x50 B; Rodolfo Ferraiuolo (San Rafael, Mendoza, Argentina). [Cielo despejado. Mínima nubosidad y extinción atmosférica al este. MALE 6,5. Cola blanquecina, zonas apenas azuladas (zona más ancha; 30’de arco). Coma difusa, de brillo parejo, de 15’ en diámetro. Núcleo no visible]
2011 Dec. 22.73 UT: m1=4: 25x100 B; David A. J. Seargent (Cowra, NSW, Australia) [Little more than guess. Brightening sky and low elevation. No distinct coma and no condensation]
2011 Dec. 23.73 UT: Tail: 22 degrees in PA: 235 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia)
2011 Dez. 23.312 UT: m1=4.0, Dia.=6', DC=3, cauda 15º em AP 260 graus; olho nu; Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico, altitude do cometa: 5º, Sol: -14° altitude, nuvens]
2011 Dec. 22.73 UT: Tail: 21 degrees in PA: 245 degrees; Naked eye; David A. J. Seargent (Cowra, NSW, Australia)
2011 Dic. 22.319 UT: m1=1.7, Dia.=15’, DC=2, Cola: 18º en AP: 225º, Ancho 28’; a simple vista y 7x50 B; Miguel Castañer y Rodolfo Ferraiuolo (San Rafael, Mendoza, Argentina). [Cielo despejado. Algo de nubosidad y extinción atmosférica al este, hasta los 6º sobre el horizonte. Luna presente, sin interferir. Cometa a 6º sobre el horizonte. Cola blanquecina, algo azulada, a mitad de su extensión se curvaba algo al norte (zona más ancha; 28’de arco). Coma difusa, de brillo parejo, de 15’en diámetro. Núcleo no visible. A unos 10’ hacia el sur del borde de la cola del cometa se hallaba la estrella doble óptica, mu Scorpii].
2011 Dez. 22.319 UT: m1=2.8, Dia.=6', DC=3, cauda 20º em AP 240 graus, olho nu ; Marco Goiato (Araçatuba, Brasil);[Crepúsculo náutico ( sol: -12° altitude ), altitude do cometa: 5º, correção de extinção atmosférica aplicada]
2011 Dec. 22.30 UT: m1=2.8, Dia.=10', DC=1, tail= 13 deg. in P.A. 235 deg.; 10x50 B; Alexandre Amorim (Florianopolis, Brazil) [comet alt. 6 deg, nautical twilight]
2011 Dec. 22.30 UT: m1=3.0*, Dia.=10', DC=1, Tail 10deg in PA 235 deg.; 11x80 B; Willian Souza (Sao Paulo,Brazil) [Magnitude corrected for extinction using ICQ average table]
2011 Dec. 21.30 UT: m1=2.3*, Dia.=10', DC=1, tail >5deg in PA 235 deg.; 11x80 B; Willian Souza (Sao Paulo,Brazil) [Magnitude corrected for extinction using ICQ average table]
2011 Dez. 20.343 UT: m1=1.2, Dia.=--, DC=9; 20X100 B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo civil (sol: -5° altitude), altitude do cometa: 7º, nuvens, correção de extinção atmosférica aplicada]
2011 Dic. 19.32 UT: m1=-0.5*, faint tail of 0.3 deg in PA 240 deg.; 11x80 B; Willian Souza (Sao Paulo, Brazil) [Comet Altitude ~5 deg, sun altitude ~ - 6.5 deg, Mercury and Antares used as comparsion stars.Magnitude corrected for extinction using ICQ average table]
2011 Dic. 18.33 UT: m1=-1.0*, Dia.=1', faint tail of 5´ in PA 240 deg.; 11x80 B; Willian Souza (Sao Paulo, Brazil) [Comet Altitude ~6 deg, Sun altitude ~ -2,5deg, Mercury and Antares used as comparsion stars.Magnitude corrected for extinction using ICQ average table]
2011 Dic. 17.34 UT: m1=-2.9*, Dia.= <1', DC=9, tail= 0.2 in P.A. 240 deg.; 10x50 B; Alexandre Amorim (Florianopolis, Brazil) [comet alt. 4 deg, sun alt. -0.9 deg]
2011 Dec. 05.73 UT: m1=11.2, Dia.=1', DC=4; 28cm SCT 84x); Michael Mattiazzo (Castlemaine, Victoria) [Tycho 2 VT comparison stars. Some twilight interference. Comet appears as a faint, very small but moderately condensed disk. Very little coma observable]
2011 Dez. 04.302 UT: m1=10.7, Dia.=2', DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico, altitude do cometa: 13º]

 

Recent Comets Observations

Assistants to the IV Symposium in Rosario, Argentina

OBSERVATION REPORT

How to Submit Observations. 

If you are going to submit observations via e-mail, please include your name, location (site, city, state/country), instrument (aperture, f/, magnification). When submitting observations, please follow the general format you see below.

2006 Nov. 03.76 UT: m1=5.3, Dia=8', DC=6; 20x90 B; Toni Scarmato (Calabria, Italy)
2006 Nov. 02.75 UT: m1=6.0, Dia.=8', DC=6; 20x50 B; Alfons Diepvens (Balen, Belgium)
2006 Nov. 01.73 UT: m1=5.6, Dia.=10', DC=6, Tail: 1deg. in PA: 40 deg.; 20x50 B; Alfons Diepvens (Balen, Belgium)
2006 Oct. 31.75 UT: m1= 5.2, Dia=15', DC=8; naked eye; Martin Lehky (Hradec Kralove, Czech Republic)
2006 Oct. 31.75 UT: m1=5.0, Dia=10', DC=6, Tail: 2.0 deg.; 20x90 B; Toni Scarmato (Calabria, Italy)
2006 Oct. 31.39 UT: m1=5.3, Dia.=13', DC=7; 10x24B; Seiichi Yoshida (Gunma, Japan) [comments go here]

Photos

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