73p 20170510 bryssinck

Follow-up of comet 73P with fragment 73P-Bt on 10 may 2017:

 

Magnitude 16.29 with aperture radius 4.1”  for 73P

Magnitude 17.52 with aperture radius 3.28” for 73PBt (UCAC4 catralog)

Distance nucleus-fragment: 7.7”  with p.a. of 21 degr.