December 2015

Intergalactic Crocodile departing for Auriga

 

Intergalactic Crocodile departing for Auriga

This is a mosaic made up of three panels with an integration of around 35 to 45 hours of exposure.

Caldwell 31, a huge, sprawling nebula spanning five light years and surrounding the ‘Flaming Star’, AE Aurigae, the bright star visible in the upper portion of the nebula. AE Aur (mag. +6) is an runaway star that is thought to have been one of three stars ejected from near the Trapezium in Orion 2.7 million years ago. It’s a class-O hydrogen fusing dwarf that is at least 30,000 times more luminous than our Sun. The nebula and the star lie around 1500 light years away.

The smaller nebula at the top is IC405, commonly known as the Tadpole Nebula for the small ‘tadpole-like’ structures of dense, cooler gas that are being shaped by the intense radiation from the hot stars of the young open cluster NGC 1893, embedded in the nebulosity. It’s just possible to see the tadpoles to the upper right of the largest dark section at the centre of the nebulosity, with the open cluster just above. IC405 lies 12,000 light years away.

Imaging telescopes or lenses: Vixen VSD
Imaging cameras: Starlight Express SXVR-H18
Mounts: Sky-Watcher MX
Guiding telescopes or lenses:Vixen VSD
Guiding cameras: sx loadstar
Software: Sequence Generator Pro, PHD, Photoshop CS5
Filters: Baader Ha, OIII & SII
Accessories: Starlight Xpress USB filter wheel, Baader Planetarium 36mm narrowband filters

Read more →

IC443 (Sh2-248) – The Jellyfish Nebula

 

IC443 (Sh2-248) - The Jellyfish Nebula

IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a Galactic supernova remnant (SNR) in the constellation Gemini. On the plan of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.

 

IC 443 may be the remains of a supernova that occurred 3,000 – 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.

 

Integration: 55 hours

 

Imaging telescopes or lenses: Vixen VSD

Imaging cameras: Starlight Express SXVR-H18

Mounts: Sky-Watcher MX

Guiding telescopes or lenses:Vixen VSD

Guiding cameras: sx loadstar

Software: Sequence Generator Pro, PHD, Photoshop CS5

Filters: Baader Ha, OIII & SII

Accessories: Starlight Xpress USB filter wheel, Baader Planetarium 36mm narrowband filters

Read more →

Sharpless 249 and the Jellyfish Nebula

IC 443 (also known as the Jellyfish Nebula and Sharpless 248  is a Galactic supernova remnant (SNR) in the constellation Gemini. On the plan of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.

IC 443 may be the remains of a supernova that occurred 3,000 – 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.

Imaging telescopes or lenses: Vixen VSD

Imaging cameras: Starlight Express SXVR-H18

Mounts: EQ

Guiding telescopes or lenses: Vixen VSD

Guiding cameras: sx loadstar

Software: Main Sequence Software

Filters: Baader H-alpha 3.5 Nm 20×1800 seconds

Accessories: Starlight Xpress USB filter wheel

Sharpless 249 and the Jellyfish

Read more →

California Nebula in bicolour.

California Nebula in bicolour.
Imaging telescopes or lenses: Vixen VSD
Imaging cameras: Starlight Express SXVR-H18
Mounts: MX
Guiding telescopes or lenses: Vixen VSD
Guiding cameras: sx loadstar
Software: PixInsight 1.8, Sequence Generator Pro, Photoshop CS5, PHD, Main Sequence Software
Filters: Baader H-alpha 3.5 Nm, Baader O III 8.5nm
Accessories: Starlight Xpress USB filter wheel
Resolution: 3283×2482
Dates: Nov. 3, 2015, Nov. 5, 2015, Nov. 9, 2015
Frames:
Baader Ha 3.5nm: 10×1800″
Baader O III 8.5nm: 20×1800″
Integration: 15 hours
Locations: Home observatory, Valencia, Spain
The California Nebula is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs

Read more →