H-NGC3486
Galaxy in Leo Minor
About
A weakly barred spiral galaxy in Leo Minor, about 27 million light-years away, with a borderline Seyfert nucleus. William Herschel found it in 1785, and it is in the Herschel 400.
Imaging tips
- About 7′ × 5′: 3460–5770 mm on APS-C frames it in a field of roughly 15′.
- Surface brightness is 22.8 mag/arcsec², which is faint for a galaxy of its size.
- One imager collected 4 hours of luminance and 3 hours per colour channel; another recorded about 520 minutes of LRGB at f/7.2.
- Best around February and March; peaks near 69° altitude from 50°N.
Facts
- Size
- 7′ × 5′
- Magnitude
- 10.3
- Coordinates
- RA 11h 0.4m, Dec +28° 59′
- Framing, APS-C
- 3460–5770 mm
- Framing, full frame
- longer than 4000 mm
- Best months
- Feb, Mar
- Peak altitude
- 69° from 50°N, 84° from 35°N