index
029P Outbursts
 Magnitude/coma diameter relation
029P 2008 Déc 17 
029P 2008 Déc 28
029P 2008 Jan  05

029P: 2008-12-17.91; Exp.1x120s; T500 F/3+ccd kai11k; No Filter;
Pixel size= 18.0µm [bin2] = 2.48" x 2.48"
Comp Star = (USNO(R) 08h13m28.550s  +23°05'38.50''  14.2
center: X=298.645 Y=350.739
Stars in the coma removed.
coord. x1,x2,y1,y2
2.48 299 299 351 351
Arcsec dia mag. pix. (dia) pix ®
14.88 14.96 6 3 296 302 348 354
24.8 14.34 10 5 294 304 346 356
74.4 13.17 30 15 284 314 336 366
124 12.47 50 25 274 324 326 376
248 11.67 100 50 249 349 301 401
372 11.25 150 75 224 374 276 426
496 11.00 200 100 199 399 251 451
620 11.60 250 125 174 424 226 476
X=298.645 Y=350.739

Cropped field : Stars in the coma are removed (AudeLa software)

2008/12/28.14 exp. 9x120s T500 F/3+ccd kai11k
 Réduction 50% Primary outburst dia coma around 400 pixel (10') élongated toward  PA 290
Second outburst dia coma around  40 pixel (100")
The nucleus show à short tail in PA around 60
2009/01/05.04 exp.9x120s

Coma  = 10x11' >>>
Outburst 2010-04-16 (alerted by S.Garro)
9x120s magnitude =  120.3 (dia = 20")
(click on the picture to enlarge)