Caldwell 25
Star cluster in Lynx · 275,000 light-years
🔭 Explore Caldwell 25 in the 3D map →View Caldwell 25 images →| Type | Star cluster |
|---|---|
| Constellation | Lynx |
| Right ascension | 7h 38m 08s |
| Declination | +38° 53′ |
| Object distance | 275,000 light-years |
| Apparent magnitude | 10.1 |
| Apparent size | 4.5′ (arc-minutes) |
| Approx. true diameter | 360 light-years across |
| Also known as | C25 · NGC 2419 |
Caldwell 25 is a star cluster (NGC 2419) in Lynx — a family of stars bound by gravity. It appears as number 25 in the Caldwell catalogue, Sir Patrick Moore's 1995 list of 109 bright deep-sky objects for amateur astronomers. It spans roughly 4.5 arc-minutes on the sky. At about magnitude 10.1, it shows up in a small backyard telescope.
Although it appears about 4.5′ wide on the sky, its real span is roughly 360 light-years — the difference is a measure of how far away it lies.
Observing Caldwell 25
Caldwell 25 lies in the constellation Lynx and is best placed in the evening sky around January. Its maximum altitude above the horizon depends on your latitude. It is best placed for observers in the northern hemisphere, and sits low for those far south. A small backyard telescope will show it; binoculars may hint at it under dark skies.
See Caldwell 25 in Universe Finder
Open the interactive 3D map to fly to Caldwell 25 and see it in context among the real stars around it. Launch the 3D view →
Sources
- Position, magnitude and angular size from the OpenNGC catalogue (Mattia Verga).
- Object identity cross-referenced with SIMBAD (CDS, Strasbourg).
- Image credits and the original observation source are linked with each photograph.
Related objects
- Pleiades — star cluster
- Hercules Cluster — star cluster
- Small Sgr Star Cloud — star cluster
- Messier 25 — star cluster
- Messier 103 — star cluster