C29
Galaxy in Canes Venatici
About
This spiral galaxy in Canes Venatici lies roughly 65 million light-years off and is tilted toward us, and dust lanes cross its disk. The nucleus is a LINER, a low-ionisation emitter whose power source is still debated, and the galaxy is a physical pair with the spiral NGC 5033. It is Caldwell 29.
Imaging tips
- Only a few arcminutes across, so it is too small to frame: use a long focal length and a fine pixel scale.
- Broadband only. One imager shot 6 hours of RGB and found no obvious Hα regions in the galaxy, so narrowband adds little.
- Fairly faint for its size at roughly 21.5 mag/arcsec², so plan many hours of data.
- The neighbouring spiral NGC 5033 sits close enough that both galaxies fit in one wide frame, and it showed more colour and detail.
- Best in March and April, peaking near 77° altitude from 50°N.
Facts
- Size
- 4.8′ × 1.5′
- Magnitude
- 10.7
- Coordinates
- RA 13h 10.9m, Dec +37° 4′
- Framing, APS-C
- longer than 4000 mm
- Framing, full frame
- longer than 4000 mm
- Best months
- Mar, Apr
- Peak altitude
- 77° from 50°N, 88° from 35°N