Horsehead Nebula

Horsehead Nebula IC 434 in the constellation Orion imaged with a Vixen R114 reflector at 900 mm focal length, an ASI 533MC cooled astronomy camera, dual band H-alpha and O-III filter, with an ASI 174MM guide camera. The nebula is not visible in small telescopes and requires a camera sensitive to H-alpha to reveal the deep-red ionized hydrogen gas obscured by an opaque cloud of dust and gas.

Horsehead Nebula, 1 hour exposure

Related link: Flame and Horsehead Nebula | 628 mm

For a complete list of astrophoto images, click here.

Night Sky in Focus 
© Anthony Urbano | Bacoor, Philippines