Hydrogen Alpha

ngc3576_3603_STL11K_nb_annotated.jpg (619210 bytes)

Hubble Palette with position of Nova V679 Carinae marked

ngc3603_STL11K_RC_HaRGB.jpg (809216 bytes)

HaRGB version

 

Catalogue and alternative designations NGC 3576 (lower left) and NGC 3603 (upper right).  The NGC 3603 complex is also known as RCW 57. There are several other NGC objects including NGC 3579, 3581, 3582, 3584 and 3586.

The narrowband image also shows Nova V679 Car which was discovered on November 30 2008.

 

Type Emission nebula and nebulous cluster
Position  11 13.8, -61 14 (centre of frame)
Constellation Carina
Camera and Telescope STL11000M and 31.75 cm Ritchey Chretien
Focal Ratio F9
Exposure Details 300 minutes with Astrodon 6nm Hydrogen Alpha filter unbinned.  Narrowband version has 280 minutes of S II and 240 minutes of O III.  HaRGB version had 100 minutes red and 90 minutes each of green and blue all unbinned.
Description While appearing close together in the sky, the NGC 3576 and NGC 3603 nebulosities are at vastly different distances, 3000 parsecs for the NGC 3576 group and 8000 for NGC 3603.  This is well shown in colour images with NGC 3603 appearing much redder due to galactic absorption.  Click here for a Hubble view of NGC 3603.