Ic 434

Ic434

 

IC 434 is an emission nebula visible in the constellation of Orion; thanks to its presence it is possible to observe the famous Horsehead Nebula, a dark cloud that overlaps it on our line of sight.

This is an H II region that extends south of Alnitak, on the southwestern edge of the large Orion B cloud; it has a very elongated shape in a north-south direction and receives the ionizing wind directly from the star σ Orionis, a bright member of the large Orion OB1 association.

The nebula reaches 70' in length and is easily shown in long exposure photos or CCD images, although its thickness is only a few arc minutes.

 

The temperature of the region was measured using various methodologies and exploiting various radiation ratios, initially obtaining values between 8000 K and 7600 K;

subsequently this value was reduced to 3360 K and even less depending on the map taken as reference. A study on electronic temperature conducted in 1992 instead provided a value more similar to the previous ones, which is around 6000 K.

 

Acquisition Telescope

Tecnosky APO Triplet 152/1216

Tecnosky APO Triplet 115/800

Newton 16" Carbon

 

Camera

Omegon VeTec 571C latest version, Omegon 571M and Player One Poseidon M pro

 

Mounting

iOptron CEM120

 

Homemade flat box, with Ascom 50x50 dimmer

 

Filters

Optolong L-Pro

Optolong L-Ultimate

Optolong LRGB HA OIII 3nm

 

Accessories

Primaluce Lab SESTO SENSO 2 • WandererRotator • Electronic control of anti-condensation bands • ZWO 7x2" filter wheel • Riccardi flattener 0.75x

 

Software

Adobe Photoshop · Astrometric STAcking Program (ASTAP) · iOptron ASCOM Driver and Commander · Planewave Platesolve2 · Pleiades Astrophoto PixInsight · Stark Labs PHD Guiding · Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)

 

Guiding Telescope

Omegon 90/500

 

Driving Camera

Asi Zwo 224MC

Done