C/2002 R4 = C/2007 Y4 ( SOHO )

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Updated on March 20, 2011

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* Fragmentation Tree of Marsden Group

*Surviving -Diminished
- C/1996 V2 = C/2002 V5
- C/1997 B5
* C/2002 R1 = C/2008 A3
* C/2002 R4 = C/2007 Y4
- C/1998 A2
* C/2003 Q1 = C/2008 X6
* C/2003 Q6 = C/2008 Y11
* C/2009 J12
* C/2009 U10
* C/2004 W10
* P/1999 J6 = P/2004 V9 = P/2010 H3
- C/1999 N5 = C/2005 E4
- C/1999 N5 = C/2005 G2
- C/1999 P6
* C/1999 U2 = C/2005 W5
* C/2000 C4 = C/2005 W1
* C/2006 E2

* Returns and Appearances

!Discovered *Appeared -Not observed #Appeared before discovery +Not observed before discovery .Returns in the future
.
2013 Apr. 13
* C/2007 Y4
2007 Dec. 22
! C/2002 R4
2002 Sept. 3
+
1997 May 12

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The identification between C/2002 R4 and C/2007 Y4 is printed on M.P.E.C. 2008-B49.
The perihelion date in 1997 is printed on M.P.E.C. 2008-B49.

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.