NGC 2146 a barred spiral galaxy in the constellation Camelopardalis

RC 12" Astrograph

23' x 26' FOV

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Bigger size: 1300 px
© Velimir Popov & Emil Ivanov 2020

NGC 2146 is a nearby starburst barred spiral galaxy type SB(s)ab pec (Buta et al., 2007). It is at a distance of 17.2 Mpc or 56.1 Mly (Tully, 1988). The galaxy is edge-on with an inclination of 63 degrees (Della Ceca et al. 1999). Its optical appearance shows disturbed features with peculiar spiral arms.
The neutral hydrogen images display 100 kpc scale tidal tails, although there is no evidence of a nearby companion galaxy. The complex appearance of the NGC 2146 system may represent the aftermath of an encounter between NGC 2146 and a slightly less massive but gas–rich galaxy which was essentially destroyed during the encounter. These investigations ruled out the speculations for interaction between NGC 2146 and NGC 2146A. (Taramopoulos et al. 2001).

A large amount of molecular gas is concentrated around the central region, which is enough to support the starburst activities. The soft X-ray images show kpc-scale outflows from the starburst region around the galactic center (Inui et al. 2005).

The subsequent investigations reveal various diffuse molecular features extended above and below the molecular disk of the galaxy (Tsai et al. 2009).

Charts and image details obtained from



Image and FOV details

Details for the image
Center of field RA 06:18:35.6 (h:m:s)
Center of field DE +78:21:23.6 (deg:m:s)
FOV 23 x 26 (arcmin)
Pixel scale: 1.04 (arcsec/pixel)

RC 12" Astrograph (IRIDA South dome)

Imaging details

Optic(s): RC 12" with Astro-Physics corrector @ f/5 (RC)
Mount: ASA DDM85 Premium
Camera: ATIK 4000 M
Filters: Astronomik II: Lumиnance
Dates/Times: 2013-09-15
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: HaLRGB: Ha: 8 x 15 min, L: 21 x 10 min, R: 6 x 10 min, G: 8 x 10 min,
  B: 13 x 10 min, Bin 1, Total Exposure Time 600 min (10 h)
More details: Bias, dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013-2020. All Rights Reserved
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