Tag Archives: Eta Carinae

Eta Carinae Nebula

c51fbe7690fceea184491c925e629db1.1824x0_q100_watermark_watermark_opacity-15_watermark_position-4_watermark_text-Copyright Stefan Westphal
The Carina Nebula (also known as the Great Nebula in Carina, the Eta Carinae NebulaNGC 3372, as well as the Grand Nebula) is a large bright nebula that has within its boundaries several related open clusters of stars. Some papers generally refer to this as the Carina Nebula, mostly because of differentiating the many papers published on this object, but the historical precedence as determined by southern observers like James Dunlop and John Herschel, who have both termed it the Eta Argus Nebula or Eta Carinae Nebula. John Herschel also describes “The star η Argus, with the Great nebula about it.” with many of his subsequent published papers supporting this.

Imaging telescopes or lenses: Canon EF 200mm f/2.8 L USM II CPS
Imaging cameras: Canon EOS 600Da
Mounts: Vixen GPD2
Guiding telescopes or lenses: TS Optics 60mm Helical Sucher
Guiding cameras: M-Gen Guiding Kamera
Software: Fitswork4, Adobe Photoshop CS 6, Deep Sky Stacker 3.3.3 Beta 51 DSS DeepSkyStacker
Accessories: Lacerta MGEN2
Dates: July 26, 2014
Locations: Namibia
Frames: 27×300″ ISO800
Integration: 2.2 hours
Darks: ~3

Author: Stefan Westphal
AstroPhotography of the day by SPONLI 23 Aug 2014

Great Nebula in Carina

c1c81ad2141f4d2a7ace57dc3b52cc79.1824x0_q100_watermark
The Carina Nebula (also known as the Great Nebula in Carina, the Eta Carinae NebulaNGC 3372, as well as the Grand Nebula) is a large bright nebula that has within its boundaries several related open clusters of stars. Some papers generally refer to this as the Carina Nebula, mostly because of differentiating the many papers published on this object, but the historical precedence as determined by southern observers like James Dunlop and John Herschel, who have both termed it the Eta Argus Nebula or Eta Carinae Nebula.

Imaging telescopes or lenses: Astro-Physics 152mm f/7.5 Starfire EDF

Imaging cameras: FLI ProLine Proline 16803
Mounts: Software Bisque Paramount MX
Guiding telescopes or lenses: Takahashi FS-60C
Guiding cameras: Starlight Xpress Superstar
Focal reducers: Astro-Physics AP 4.0″ Field Flattener
Software: PixInsight 1.8, FocusMax, Maxim DL Pro 5, Software Bisque TheSky6 Professional, Photoshop CS Photo Shop CS5, CCD Autopilot 5
Filters: Astrodon E-series LRGB Ha 5nm
Accessories: Sirius Dome
Dates: Jan. 27, 2014
Locations:Sydney Australia
Frames: 38×600″
Integration: 6.3 hours

Author: David Nguyen
AstroPhotography of the day by SPONLI 13 Aug 2014

3D Homunculus Nebula 

etacarinae_model_comparison_labels2048
Science Credit: 
W. Steffen (UNAM), M. Teodoro, T.I. Madura,
J.H. Groh, T.R. Gull, A. Mehner, M.F. Corcoran, A. Damineli, K. Hamaguchi
Image Credit: NASA, Goddard Space Flight Center/SVS – Inset: NASA, ESA, Hubble SM4 ERO Team

 If you’re looking for something to print with that new 3D printer, try out a copy of the Homunculus Nebula. The dusty, bipolar cosmic cloud is around 1 light-year across but is slightly scaled down for printingto about 1/4 light-nanosecond or 80 millimeters. The full scale Homunculus surrounds Eta Carinae, famously unstable massive stars in a binary system embedded in the extensive Carina Nebula about 7,500 light-years distant. Between 1838 and 1845, Eta Carinae underwent the Great Eruption becoming the second brightest star in planet Earth’s night sky and ejecting the Homunculus Nebula. The new 3D model of the still expanding Homunculus was created by exploring the nebula with the European Southern Observatory’s. That instrument is capable of mapping the velocity of molecular hydrogen gas through the nebula’s dust at a fine resolution. It reveals trenches, divots and protrusions, even in the dust obscured regions that face away from Earth. Eta Carinae itself still undergoes violent outbursts, a candidate to explode in a spectacular supernova in the next few million years.

APOD NASA 17-Jul-14