IC 405 Flaming Star

IC 405 (also known as the Flaming Star Nebula, SH 2-229, or Caldwell 31) is an emission and reflection nebula[1] in the constellation Auriga north of the celestial equator, surrounding the bluish star AE Aurigae. It shines at magnitude +6.0. Its celestial coordinates are RA 05h 16.2m dec +34° 28′.[2] It surrounds the irregular variable star AE Aurigae and is located near the emission nebula IC 410, the open clusters M38 and M36, and the K-class star Iota Aurigae.

The nebula measures approximately 37.0′ x 19.0′, and lies about 1,500 light-years away from Earth.[2] It is believed that the proper motion of the central star can be traced back to the Orion’s Belt area.[2] The nebula is about 5 light-years across.[1]

To the bottom of this post are a Starless Flaming Nebula image along with HA image. This was used as a luminance layer to make the image pop within pixinsight.

revisited this image to correct the stars which where very bloated, will shoot some RGB for normal star color and add these in (update 30/11/2021)


IC 405 Flaming Star Nebula, Image was nominated for Top pick at Astrobin Nov15th 2021. Click here for full size image

 Technical card of Image 

Imaging telescopes or lenses: William Optics 81GT IV 
Imaging cameras: ZWO ASI 6200 MM Pro 
Mounts: Celestron Advanced VX Goto GEM Celestron AVX 
Guiding telescopes or lenses: William Optics RedCat 51 Petzval APO Redcat 51 
Guiding cameras: ZWO ASI522mc-pro color ZWO 
Software: Adobe Photoshop 2021  ·  PixInsight 1.8 Ripley PinInsight 1.8.8
Filters: ZWO SII 7nm 2″  ·  ZWO OIII 7nm 2″  ·  ZWO H-alpha 7nm 2″
Date: Sept. 23, 2021

ZWO H-alpha 7nm 2″: 37×300″ (3h 5′) (gain: 135.00) -15C bin 1×1
ZWO OIII 7nm 2″: 23×300″ (1h 55′) (gain: 135.00) -15C bin 1×1
ZWO SII 7nm 2″: 12×300″ (1h) (gain: 135.00) -15C bin 1×1

Integration: 6h 
Darks: 25 
Flats: 25 
Bias: 50 
Avg. Moon age: 17.14 days 
Avg. Moon phase: 93.74%

RA center: 05h19m54s.0
DEC center: +34°0328
Pixel scale: 2.012 arcsec/pixel 

Orientation: 177.058 degrees 
Field radius: 2.293 degrees
Resolution: 6853×4507
Observation data: J2000 epoch
Right ascension 05h 16m 05s
Declination +34° 27′ 49″
Distance 1500 ly
Apparent magnitude (V) +6.0?
Apparent dimensions (V) 37′ × 10′
Constellation Auriga
Physical characteristics
Radius 2.5 ly
Designations Flaming Star Nebula, Caldwell 31, Sharpless 229
Sky plot
IC 405 Starless flaming Star Nebula. Click here for full size
IC 405 HA Flaming Star Nebula. Click here for full size

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