Catalogue
and alternative designations |
SB3
|
Type |
Planetary
Nebula |
Position |
18
12 14.48, -31 19 58 |
Constellation |
Sagittarius |
Camera
and Telescope |
STXL16200
and 36.8cm RCOS Ritchey Chretien |
Focal
Ratio |
F9 |
Exposure
Details |
This
is a LHaOIIIOIIIRGB image with
Luminance = 100 minutes, Hydrogen Alpha
= 300 minutes, Oxygen III = 330 minutes
and Red = Green = Blue =20
Minutes using Astrodon 3nm
filters. Luminance was unbinned
and everything else was binned
2x2
|
Description |
Very
little is known about this faint
planetary nebula in Sagittarius
and this may be the first ever
colour image of it. The central
shell is recorded as 75 x 55
arcseconds and there may be
structures extending out to 2.5
x 2 arcminutes although this
image doesn't show much in that
regard. It was discovered by
Sylvie Beaulieu.
The
possible outer structures around
this planetary nebula were
discovered by the Galactic
Planetary Nebula Halo Survey
(GPNHS) team in February 2015.
|