NGC 1555 - Hind’s Variable Nebula in Taurus
Exposure time total:
Astro-Physics 175mm f/8 Starfire EDF with field flattener (f=1452mm)
10micron GM3000 HPS
L 32x6 min, RGB 10x6 min each
Moravian G4-16000 with Baader filters
Image acquisition by CEDIC team
(Bernhard Hubl, Christoph Kaltseis, Markus Blauensteiner)
Image processing by Bernhard Hubl
NGC 1555, also known as Hind's Variable Nebula, is a variable nebula,
illuminated by the young star T Tauri, located in the constellation Taurus.
It is a Herbig蓬aro object.
Herbig蓬aro (HH) objects are small patches of nebulosity associated with
newly born stars, and are formed when narrow jets of partially
ionized gas ejected by those stars collide with nearby clouds of
gas and dust at speeds of several hundred kilometres per second.
HH objects are transient phenomena that last less than a few
thousand years. They can evolve visibly over quite short astronomical
timescales as they move rapidly away from their parent star into the
gas clouds of interstellar space.
Besides NGC 1555 also six other HH objects are visible in the
above image of this dusty region:
HH 255 (=Burnham's Nebula)