Comets Now! (Long periodic)

Without notes, north is up and field of view is **15'x10'**
(c) copyright Takuo Kojima
Anyone who wishes to reproduce images, should contact to kojitaku !

C/2002 F1 (Utsunomiya)
2002/03/20 19h47m UT ...25cm f/6 L, exp. 120sec.
2002/03/24 19h31m UT ...25cm f/6 L, exp. 60sec. x8 frames

C/2002 E2 (Snyder-Murakami)
2002/03/16 19h44m UT ...25cm f/6 L, exp. 120sec.x8 frames
2002/03/24 19h17m UT ...25cm f/6 L, exp. 60sec. x8 frames

C/2002 C1 (Ikeya-Zhang)
2002/02/20 ...25cm f/6 L, exp. 30sec.
2002/02/24 09h30m UT ...25cm f/6 L, exp. 30sec.x6 frames
2002/03/04 09h34m UT ...25cm f/6 L, exp. 120sec.
2002/03/07 09h33m UT ...25cm f/6 L, exp. 60sec.
2002/03/08 09h32m UT ...25cm f/6 L, exp. 60sec.
2002/03/13 09h31m UT ...25cm f/6 L, exp. 60sec.

P/2000 Y3 (Scotti)
2001/01/02 13h14m UT ...25cm f/6 L, exp. 300sec.

C/2000 Y2
2000/12/28 14h39m UT ...25cm f/6 L, exp. 300sec.

C/2000 WM1 (LINEAR)
2000/12/29 13h09m UT ...25cm f/6 L, exp. 300sec.
2002/02/22 20h27m UT ...25cm f/6 L, exp. 60sec.

C/2000 W1 (Utsunomiya-Jones)
2000/12/11 08h20m UT ...25cm f/6 L + R filter, exp. 30sec.
2000/12/13 08h25m-08h37m UT ...20cm f/9 R, exp. 30sec. x 12
2001/01/15 20h43m UT ...25cm f/6 L, exp. 120sec.
2001/02/18 19h56m UT ...25cm f/6 L, exp. 120sec.
2001/02/26 19h27m-19h40m UT ...25cm f/6 L, exp. 120sec. x 6

C/2000 U5 (LINEAR)
2000/11/04 16h29m UT ...25cm f/6 L, exp. 300sec.

C/2000 SV74 (LINEAR)
2000/10/26 16h19m UT ...25cm f/6 L, exp. 120sec.

P/2000 S1(Skiff)
2000/09/26 13h22m UT ...25cm f/6 L, exp. 120sec.

C/2000 K1(LINEAR)
2000/06/06 15h02m UT ...25cm f/6 L, exp. 120sec.

P/2000 B3(LINEAR)
2000/02/04 14h44m UT ...25cm f/6 L, exp. 300sec.

C/2000 A1(Montani)
2000/02/04 13h38m UT ...25cm f/6 L, exp. 300sec.

C/1999 Y1 (LINEAR) = E52458
1999/12/27 12h28m UT ...25cm f/6 L, exp. 300sec.
2000/09/02 16h00m UT ...25cm f/6 L, exp. 120sec.
2000/09/26 15h15m UT ...25cm f/6 L, exp. 120sec.
2000/10/30 15h21m UT ...25cm f/6 L, exp. 120sec.
2000/11/23 13h58m-14h16m UT ...25cm f/6 L, exp. 120sec.x 8

C/1999 XS87 (LINEAR)
2000/02/04 15h47m UT ...25cm f/6 L, exp. 300sec.

P/1999 X1 (Hug-Bell)
1999/12/15 20h22m UT ...25cm f/6 L, exp. 300sec.

C/1999 U4 (Catalina-Skiff)
1999/11/04 13h28m UT ...25cm f/6 L, exp. 120sec.

C/1999 U3 (LINEAR)
1999/11/01 12h38m UT ...25cm f/6 L, exp. 120sec.. FOV 15'x10'

C/1999 U1 (Ferris)
1999/10/20 14h27m UT ...25cm f/6 L, exp. 300sec.. FOV 15'x10'

C/1999 T3 (LINEAR)
1999/10/28 12h29m UT ...25cm f/6 L, exp. 120sec.. FOV 15'x10'
1999/11/28 14h24m UT ...25cm f/6 L, exp. 120sec.

C/1999 T2 (LINEAR)
1999/10/28 10h14m UT ...25cm f/6 L, exp. 120sec.. FOV 15'x10'
2000/06/06 17h57m UT ...25cm f/6 L, exp. 120sec.
2000/07/31 14h36m UT ...25cm f/6 L, exp. 120sec. 結構明るい...
2000/09/26 11h48m UT ...25cm f/6 L, exp. 120sec.

C/1999 T1 (McNaught-Hartley)
2000/11/18 20h24m UT ...25cm f/6 L, exp. 30sec.
2000/11/28 20h03m UT ...25cm f/6 L, exp. 120sec.
2000/12/03 20h14m UT ...25cm f/6 L, exp. 120sec.
2000/12/08 20h11m UT ...25cm f/6 L, exp. 120sec. see tail structure
2000/12/16 20h21m UT ...25cm f/6 L, exp. 120sec.
2000/12/26 20h29m UT ...25cm f/6 L, exp. 120sec.
2001/01/01 20h24m UT ...25cm f/6 L, exp. 120sec.
2001/01/15 19h53m-20h10m UT ...25cm f/6 L, exp. 120sec. x 5
2001/01/21 19h49m-20h05m UT ...25cm f/6 L, exp. 120sec. x 6

C/1999 S4 (LINEAR)
1999/10/08 15h00m UT ...25cm f/6 L, exp. 120sec.. FOV 15'x10'
1999/11/04 13h12m UT ...25cm f/6 L, exp. 120sec.. FOV 15'x10'
1999/11/28 13h55m UT ...25cm f/6 L, exp. 120sec.. short tail extended to south-east,
1999/12/25 12h09m UT ...25cm f/6 L, exp. 120sec.. with NGC925
2000/01/31 10h56m UT ...25cm f/6 L, exp. 120sec.
2000/02/21 10h22m UT ...25cm f/6 L, exp. 120sec.
2000/05/24 18h16m UT ...20cm f/10 SCT, exp. 60sec. x 4, m1= 11.5
2000/06/06 18h11m UT ...25cm f/6 L, exp. 120sec. x 7 , pseudo color
2000/06/06 18h11m UT ...the same as above, using rotational gradient technique
2000/06/07 17h57m UT ...25cm f/6 L, exp. 120sec. x 8 , pseudo color
2000/06/19 18h12m UT ...25cm f/6 L, exp. 60sec. x 9 , tail length > 10' ?
2000/06/19 18h12m UT ...the same as above, using rotational gradient technique
2000/06/30 17h36-54m UT ...25cm f/6 L, exp. 60sec. x 7 , sky condition was bad with thin clouds
2000/06/30 17h36-54m UT ...the same as above, using rotational gradient technique
2000/07/10 17h22-32m UT ...25cm f/6 L, exp. 60sec. x 8
2000/07/10 17h22-32m UT ...the same as above, using rotational gradient technique
2000/07/10 17h22-32m UT ...the same as above, intensity profile
2000/07/10 17h53-18h00m UT ...10cm f/4 R, exp. 60sec. x 6
2000/07/16 17h29-40m UT ...25cm f/6 L, exp. 60sec. x 8 なかなかカッコ良い！
2000/07/16 17h29-40m UT ...the same as above, using rotational gradient technique いくつもツノが...
2000/07/30 11h15-20m UT ...25cm f/6 L, exp. 30sec. x 5, with R filter 何たる変わりよう...
2000/07/31 10h46-53m UT ...25cm f/6 L, exp. 30sec. x 8

C/1999 S3 (LINEAR)
1999/10/04 16h46m UT ...25cm f/6 L, exp. 120sec.
1999/11/29 11h28m UT ...25cm f/6 L, exp. 120sec.

C/1999 N2 (Lynn)
1999/08/03 10h47m UT ...20cm f/10 SCT, exp. 120sec. FOV 23'x15'
1999/10/24 19h36m UT ...25cm f/6 L, exp. 120sec. FOV 32'x23', diffuse and very faint !

C/1999 L3 (LINEAR)
1999/12/07 19h53m UT ...25cm f/6 L, exp. 120sec.
1999/12/31 20h06m UT ...25cm f/6 L, exp. 120sec.
2000/01/31 12h20m UT ...25cm f/6 L, exp. 120sec.
2000/02/04 16h04m UT ...25cm f/6 L, exp. 120sec.
2000/02/21 14h00m UT ...25cm f/6 L, exp. 120sec.うーん，あっと言う間に小さくなってしまった．．．

C/1999 L2 (LINEAR)
1999/06/14 ...m1=16.8

C/1999 K8 (LINEAR)
1999/10/11 ...25cm f/6 L, exp. 120sec.
2000/09/02 15h49m UT ...25cm f/6 L, exp. 120sec.

C/1999 J3 (LINEAR)
1999/08/31 18h48m UT ...outburst ?
1999/10/04 17h23m UT ...25cm f/6 L, exp. 120sec. bright !
1999/10/11 19h41m UT ...25cm f/6 L, exp. 120sec. bright !

C/1999 J2 (Skiff)
1999/12/07 20h21m UT ...25cm f/6 L, exp. 120sec.

C/1999 H3 (LINEAR)
1999/04/29

C/1999 H1 (Lee)
1999/05/06 ...with R filter
1999/05/20
1999/05/20 ...with R filter
See Gordon Garradd's excellent image !
1999/06/01
1999/08/07 18h40m UT ...20cm f/10 SCT, exp. 120sec. FOV 23'x15', アンチテイルが見事！
1999/08/18 17h51m UT ...25cm f/6 L, exp. 120sec. FOV 32'x22'
1999/08/18 18h10m UT ...25cm f/6 L, exp. 300sec. FOV 32'x22', プラズマテイルはかすかに．やや薄雲かかる
1999/08/31 18h09-31m UT ...25cm f/6 L, exp. 120sec. each, long tail !, シャープな長い尾，軌道面通過が迫りました
1999/08/31 18h41m UT ...25cm f/6 L, exp. 120sec. FOV 32'x22', could not see plasma tail
1999/09/23 13h45m UT ...25cm f/6 L, exp. 300sec. FOV 32'x22', ST-8E，尾が随分変わった
1999/10/11 11h59m UT ...25cm f/6 L, exp. 120sec. FOV 32'x22', ST-8E

C/1999 F2 (Dalcanton)
1999/06/14

C/1999 A1 (Tilbrook)
1999/01/17 ...with R filter

P/1998 U3(Jager)
1998/12/26

C/1998 P1 (Williams)
1998/11/23
1999/01/29 ...FOV 32'x22' long tail
1999/02/21 ...FOV 32'x22' long tail
1999/04/07 ...very faint

C/1998 M5 (LINEAR)
1998/11/28
1999/01/29
1999/02/21 ...FOV 32'x22' long tail
1999/04/07
1999/11/05 19h37m UT ...25cm f/6 L, exp. 120sec.. FOV 15'x10'，お久しぶり！

C/1997 BA6 (Spacewatch)
2000/07/30 15h03m UT ...25cm f/6 L, exp. 120sec. with R filter, Dec.= -49d ! 赤緯は-49度！