MIMOSA & JEWEL BOX

Star Field in Crux

Image centered at ra: 12,51 / dec -60:08

April 2011, Laguna de Todos los Santos, Buenos Aires, Argentina

Collaboration with Juan Jose Destefani (acquisition) and Sergio Eguivar (processing)

DATA

TYPE: Star Field

VISUAL BRIGHTNESS: NGC 4755 4.2 & Beta Crux 1.31

SIZE (apparent): FOV arround 2 degrees

DISTANCE: Mimosa 353 light years and 7600 for NGC 4755

OBJECT DESCRIPTION

NGC 4755 and Mimosa are separated by the apparent distance of roughly 1 degree. NGC 4755 is very easily to spot once centering Mimosa or Beta Crux. Just need to aim to the star and the cluster is almost in the field of view of smaller to medium telescopes. Both objects are situated near the galactic plane in a very rich star field background. The brownish color of the background star field reveals older stars and also give the area an extraordinary sight.

IMAGE INFORMATION

SCOPE: Orion ED 80  @ f7.5 with Sky Watche HEQ5

SKY CONDITIONS: Good  Transparency

CAMERA: Canon XSI unmodified

FILTERS: none

EXPOSURES: RGB 12 x  360 seconds subs

GUIDING: Orion Short Tube - Philips Toucam

CALIBRATED: Images Plus darks bias and flats used. Richardson Lucy Deconvolution. Photoshop CS