C/2001 Q2 (Petriew)



发现后到23日的观测数据


2001 Aug. 20.31 UT: m1=10.8, Dia=2', DC=4... 15.2cm R (152x)...Paulo M. Raymundo (Salvador, Brazil)
2001 Aug. 20.44 UT: m1=9.8, Dia=3', DC=4... 15cm L...Greg Crinklaw (Cloudcroft, NM)
2001 Aug. 21.77 UT: m1=9.8, Dia.=2'.3, DC=4...25.4cm L (46x)...Katsumi Yoshimoto (Yamaguchi, Japan) [Comet is brighter than 19P.]
*2001 Aug. 22.12 UT: m1=10.7, Dia.=2', DC=3...25cm L (60x)...C.Segarra (Algimia, Spain)
*2001 Aug. 22.72 UT: m1=9.5, Dia.=2.1', DC=6... 32cm L (58x)...Yoshimi Nagai(Yamanashi, Japan)[It could be seen much more clearly than C/2001 A2 of the same night.]
*2001 Aug. 22.89 UT: m1=10.5, Dia.=2.2', DC=3...20cm L (45x)...Andrew Pearce (Nedlands, Western Australia)
*2001 Aug. 23.078 UT: m1=10.2, Dia.=2', DC=3/... 25.4cm T f/6.3 (105x)...Sebastian F. Hoenig (Dossenheim, BW, Germany) [Coma elongated, enough comparison stars within the FOV, Limiting naked-eye magnitude: 5.7]


 星历表


Date  TT    R. A. (2000) Decl.    Delta      r     Elong.  Phase   m1 
2001 08 19    05 35.35   +27 56.2    0.866    0.970    61.6    66.6  10.6
2001 08 24    06 03.33   +26 09.8    0.886    0.957    60.2    66.4  10.5
2001 08 29    06 29.40   +24 09.9    0.910    0.950    59.0    65.8  10.6
2001 09 03    06 53.59   +22 01.3    0.937    0.948    58.2    64.7  10.6
2001 09 08    07 15.98   +19 48.0    0.966    0.951    57.6    63.4  10.7
2001 09 13    07 36.71   +17 33.0    0.997    0.961    57.3    61.8  10.8
2001 09 18    07 55.91   +15 18.5    1.029    0.976    57.3    60.1  11.0
2001 09 23    08 13.69   +13 06.4    1.061    0.995    57.6    58.3  11.1
2001 09 28    08 30.19   +10 57.6    1.092    1.020    58.1    56.5  11.3
2001 10 03    08 45.50   +08 52.9    1.121    1.048    58.9    54.8  11.5
2001 10 08    08 59.73   +06 52.8    1.149    1.080    59.9    53.1  11.6
2001 10 13    09 12.94   +04 57.5    1.175    1.116    61.1    51.6  11.8
2001 10 18    09 25.19   +03 07.1    1.198    1.153    62.6    50.1  12.0