Cuelgo los ultimos datos de brillo del cometa publicados en la página web de rastreadores de cometas.
continua estando bastante mas brillante que lo previsto veremos como evoluciona.
C/2009 R1 (McNaught)
2010 Maio 22.354 UT: m1=7.7, Dia.=5', DC=4; 7X50B; Marco Goiato (Araçatuba, Brasil)
2010 Maio 22.343 UT: m1=7.9, Dia.=4', DC=5/, Cauda=0.2 graus em AP=240 graus; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 May. 22.10 UT: m1=7.2, Dia.=9', DC=6; 10x50 B; Juan José González (Alto del Castro - Aralla, alt. 1720 m., León, España) [En 20cm SCT (77x): Débil cola de 0.6º en AP 260º. Estrella de mag. 9.3 (Tycho-2) en la coma. Cielo muy claro de montaña. Altura: 18º ].
2010 May. 19.79 UT: m1=7.5, Dia.=7.5', DC=5/6; 7x50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, central condensation a little more pronounced. Comp Star= TYC 1180-226-1; Method= S; Cat= TJ]
2010 May. 17.83 UT: m1=8.5, Dia.=5', DC=5; 25x100 B; Michael Mattiazzo (Castlemaine, Victoria) [Tycho 2 VT comparison stars. Smoke haze interference. Comet altitude was 17 degrees. The moderately condensed coma is enhanced by a swan band comet filter. No tail observed]
2010 May. 17.14 UT: m1=7.8, Dia.=8', DC=5; 10x50 B; Juan José González (Cueto Rosales - Riello, alt. 1420 m., León, España) [En 20cm SCT (77x): coma claramente destacada con filtro Swan. Más brillante que lo previsto. Cielo muy claro de montaña. Comienzo del crepúsculo astronomico. Altura sobre el horizonte: 18º]
2010 May. 16.35 UT: m1=8.5, Dia.=5', DC=5; 20x80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 May. 15.76 UT: m1=8.0, Dia.=9.5’, DC=4; 7x50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma has small central condensation, not quite stellar, coma large and faint, seen with direct vision. Comp Star= TYC 1182-516-1; Method= S; Cat= TJ]
2010 Maio 15.333 UT: m1=8.5, Dia.=6', DC=5/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Maio 15.333 UT: m1=8.5, Dia.=6', DC=5; 20x100B; Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 May. 14.77 UT: m1=8.5, Dia.=3’, DC=3; 7x50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, close to bright star, coma easily resolved with direct vision. Comp Star= TYC 1178-163-1; Method= S; Cat= TJ]
2010 Maio 14.333 UT: m1=9.1:, Dia.=5', DC=5/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 May. 13.78 UT: m1=8.0, Dia.=5.1’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma bright, slightly elongated to WSW (seems broad at x83), faint outer coma edges gradually concentrating to centre, central condensation not quite stellar. Comp Star= TYC 1181-1080-1; Method= S; Cat= TJ]
2010 May. 11.77 UT: m1=8.3, Dia.=5.1’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma bright, central condensation tight but not stellar, coma elongated to WSW. Comp Star= TYC 1722-1182-1; Method= S; Cat= TJ]
2010 May. 10.76 UT: m1=9.1, Dia.=4.8’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma bright, central condensation not quite stellar, coma seems elongated NE to SW slightly, 12 degrees above horizon. At x83 coma seems to have a faint broad extension to the West. Comp Star= TYC 1177-1469-1; Method= S; Cat= TJ]
2010 May. 06.78 UT: m1=9.6, Dia.=3.2’, DC=3/4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, gradual brightening toward centre, elongated slightly to North, moonlight affected. Comp Star= TYC 1173-;702-1 Method= S; Cat= TJ]
2010 May. 06.470 UT: m1=10.0, Dia.=2´, DC=3/4, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)