NGC 2419 (GCL 12) is a small (6.2'), 11th magnitude globular cluster in Lynx. It lies some 200,000 light years away, which accounts for how small and faint it is. It is some ten times farther away than the famous M13, for instance. To add another perspective, this cluster lies nearly twice as far away from the galactic center as the Large Magellanic Cloud! The vast majority of globulars lie less than 1/3 as far out.
This may be the most distant Milky Way globular visible in amateur instruments.
This image from the DSS shows a 20' x 20' field. North
is down and east is to the right.
NGC 2419 was discovered by William Herschel in 1788. He and later observers failed to note its globular nature. In smaller (<10-inch) telescopes it appears as a small, round hazy ball. Larger apertures begin to resolve individual stars.
In January 2000 I observed NGC 2419 with my 18-inch. It is an easy find because two 7th magnitude stars (visible in most finders) point directly at it. It appeared as a round haze at 100x. My best view was at 425x, where many individual stars were resolved.
The field in a 6-inch at 50x.
Millennium Star Atlas Vol I Chart 107
Sky Atlas 2000 Chart 5
Uranometria 2000 Vol I Chart 100