| Designation |
IRAS 18059-3211, Gomez's
Hamburger |
| Object type |
Proto-planetary nebula |
| Coordinates |
18 h 09 min -
32° 11' Sagittarius (Sgr) |
| Description |
In May 1985, chilean astronomer Arturo
Gomez discovered a fuzzy bun-shaped object on a plate taken by the
CTIO (Tololo) 1.5 meter telescope. After some investigation,
the object was identified as a proto-planetary nebula, a gas cloud emitted
by a Sun-like star just after its central hydrogen fuel has all been fused
to helium. Gomez's Hamburger is on its way to becoming a full-fledged
planetary nebula in a few thousand years. A Hubble telescope image
can be found here. The
left frame is a full 15 x 10 arcminutes field of the ST-10XE
camera with north towards the top. It shows the tiny (3.5 x 5.5
arcsecs) object marked right of center. On the right is a digitally
enhanced (deconvolved) detail image which clearly shows the bun-shaped
nature of this remarkable little nebula. The heavily overexposed
blooming star to the right shines at mag 10.5 .
|
| Exposure |
120 min @ -15°C
; all exposures 20 min unbinned |
| Camera |
SBIG ST-10XE with Astrodon clear
filter - selfguided |
| Optics |
RCOS 14.5" Ritchey-Chrétien
@ f/9
(prime focus) |
| Mount |
Astro-Physics AP1200GTO |
| Software |
MaxIm DL/CCD, CCDSharp, Adobe
Photoshop CS |
| Location - Date - Time |
San Esteban (Chile) - 01Jun2005 @
04:30
UTC |
| Conditions |
Transparency 8/10, Seeing
7/10, Temperature
+ 14°C |
