E.T. Cluster
NGC 457
Our version of NGC 457 cluster with the whole AstroFleet team. The data were acquired with our setup (TS-Optics CF-APO 155mm & ASI2600MM Pro) hosted at PixelSkies, Spain. Astrobin version here.
NGC 457 (Caldwell 13), also known as the "Owl Cluster" or "E.T. Cluster" is a very young open cluster located in the constellation of Cassiopeia. It contains about eighty stars and is estimated to be around 5,200 light-years away from the Sun. Recent estimates suggest that this cluster is 21 million years old and spans about 46 light-years.
This image was shot in LRGBH, and to our surprise, there's a lot of hydrogen in the background!
TECHNICAL DATA
ACQUISITION DETAILS
OPTICS TS-Optics CF-APO 155mm @ F/8
CAMERA ZWO ASI2600MM Pro
MOUNT iOptron CEM70
FILTERS Ha, L, R, G, B
LOCATION PixelSkies, Castilléjar, Granada, Andalucia, Spain
DATE December 2023
EXPOSURES 24.3 hours (Ha 166x 300 sec, L 120 x 180 sec, R 30 x 180 sec, G 30 x 180 sec, B 30 x 180 sec)
PROCESSING SOFTWARE Pixinsight, CCDstack, Photoshop
COPYRIGHTS Team AstroFleet
TARGET DETAILS
RA 01h 19m 38.7s
DEC +58° 14' 35.1"
MAGNITUDE 6.4
SIZE 62.6 x 41.7 arcmin
PIXEL SCALE 0.626 arcsec/pixel
ORIENTATION Up is 272 degrees E of N
CONSTELLATION Cassiopeia