Facts
C/2011 L4 (PANSTARRS) is a non-periodic comet discovered in June 2011 that became visible to the naked eye when it was near perihelion in March 2013. It was discovered using the Pan-STARRS telescope located near the summit of Haleakalā, on the island of Maui in Hawaii. Comet C/2011 L4 probably took millions of years to come from the Oort cloud. After leaving the planetary region of the Solar System, the post-perihelion orbital period (epoch 2050) is estimated to be roughly106000 years. Dust and gas production suggests the comet nucleus is roughly 1 kilometer (0.62 mi) in diameter. (Wikipedia)

Object: M31 Andromeda Galaxy and C/2011 L4 Pan-STARRS
Date: 03.04.2013
Time: 23:00
Location: Sollihøgda, Bærum, NO
Camera: DSLR Canon EOS 7D
Optics: Canon 300mm f4,0
Exposure: 21 x 120 sec
20 x bias
20 x flatframes
ISO: 320
Guiding: PHD
Post processing: DSS, Photoshop CS5

Object: C/2011 L4 Pan-STARRS
Date: 31.03.2013
Time: 21:30
Location: Sollihøgda, Bærum, NO
Camera: DSLR Canon EOS 7D
Optics: Canon 300mm f2,8
Exposure: 29×25 sec
ISO: 320
Guiding: None
Post processing: DSS, Photoshop CS5

Object: C/2011 L4 Pan-STARRS
Date: 21.03.2013
Time: 20:15
Location: Backyard, Asker, NO
Camera: DSLR Canon EOS 7D
Optics: Canon 300mm f2,8
Exposure: 8 sec
ISO: 160
Guiding: None
Post processing: Photoshop CS5