Galaxies in Eridanus
NGC 1723 has an unusual shape that includes a central bar, a ring, and two dim spiral arms. It is estimated to be about 110 million light years away.
The three galaxies below are, from right to left, NGC 1721, 1725, and 1728. Although it is hard to tell by looking, measurements suggest that they are farther away, in the range of 170 to 200 light years distant.
NGC 1723:
| Magnitude | 11.7 |
| Apparent Size | 2.6' x 1.8' |
| Distance (light yrs) | 110 million |
| Right Ascension | 4:59.4 |
| Declination | -10 59 |
| Field of View | 22' x 17' |
Image details: Exposure times of 78 minutes luminance and 36 minutes each of red, green, and blue, taken with an SBIG ST-8300M imager and a 14" Meade LX850 telescope at f/8.
January 2018