Cr421
Open Cluster in Cygnus
About
An open cluster in Cygnus, listed by SIMBAD as about 17′ across. Its Gaia parallax of 0.813 milliarcseconds puts it near 4,000 light-years away.
Imaging tips
- Broadband is the filter choice for an open cluster.
- The reflection nebulae NGC 6914 lie roughly 50′ to the north, nearby in a wider field.
- It passes almost overhead from mid-northern latitudes, peaking near 82° from 50°N, and is best in July and August.
Facts
- Size
- 17.2′
- Magnitude
- 10.1
- Coordinates
- RA 20h 23.3m, Dec +41° 42′
- Framing, APS-C
- 1410–2350 mm
- Framing, full frame
- 2160–3600 mm
- Best months
- Jul, Aug
- Peak altitude
- 82° from 50°N, 83° from 35°N