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)
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
Frames:
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°03′28″
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 |
