The view of The Christmas Tree Cluster and Cone nebula visited by two asteroids from the main asteroid belt. To the upper left is the 80km wide (478) Tergeste and at center right is the 23km wide (4162) SAF.
Optics: Vixen R200SS 8"; f/4 MPCC
Camera: QSI 583wsg
Guider: Lodestar via OAG
Mount: EM-200 Temma 2m
Exposure: Ha:16x30min, L:13x10min, R:9x10min, G:8x10min, B:6x10min +Darks, Flats
Total 14h
Filters: Astrodon RGB gen II, 5nm Ha
Processed in Pixinsight.
Photographed from Ytre Enebakk/Norway, February-March 2013.