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IC410/Tadpole Nebula in Auriga

RA = 5hrs 22 min DEC = 33 deg, 24 min

Date & Site:

October 9-10, 2015; Mount Palomar

Conditions: mixed seeing; 67 degrees; mild winds to calm


Telescope: TEC 140 Refractor; 980mm fl at f/7

Mount: AP1100 GOTCP3
Camera: ST-10XME; CFW10; Hutech OAG5 with autoguider

Astrodon Ha (3nm) and RGB filters


Exposures: 3.5 hrs of Ha, 60 minutes each of RGB for a total of 6.5 Hrs.

This faint emission nebula lies about 12,000 light-years away in the northern constellation Auriga. Doubly ionized oxygen dominates the core of this region. Notable near the 2 o'clock position in this view are two relatively dense streamers of material trailing toward the nebula's central regions. These "tadpoles" are sites of ongoing star formation. Each one is about 10 light-years long.

The complexity of this nebula displays well in Ha alone as shown here.

Image reduced to 60% of original to fit most displays

Field of View = 52 x 35 arc minutes

12,000 light years away

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