05005+0506 (= STT 93): Although named for Otto Struve, this solar-type pair was first resolved by Madler in 1846 (Madler 1856, Dorpat Observations, 13, 1). After nearly 170 years and 100 observations, the orbit is still obviously very preliminary, as the pair has yet to complete even 1/4 of a revolution.
11486+1417 (= BU 603): The primary is an A8III; the magnitude difference (~2.5mags) suggests the companion is perhaps a mid-G dwarf. The pair has completed just over one full revolution since its discovery in 1878, but half the orbit is essentially unobserved, due to the pair's high eccentricity. Indeed, the pair was unresolved between 1935 and 1956, as it moved through some 250{deg} of its orbit.
13198+4747 (= HU 644 AB): Over half of the orbit for this 49-year pair is now covered by high-resolution data-enough that the period for this solution was determined from all 112 years' worth of micrometry, speckle, adaptive optics (AO), and CCD data, then the remaining elements were based solely on speckle and AO measurements. The primary is listed as K0; based on the magnitude difference the secondary is probably about K3. The A component was resolved by speckle into a close (0.1'') Aa,Ab pair (Hartkopf et al. 1994, cat. J/AJ/108/2299); Ab is perhaps a mid-K star.
14203+4830 (= STF 1834): This high-eccentricity pair has completed less than half a revolution since its discovery in 1829 (Struve 1837, Mensurae Micrometricae Petropoli). Recent measures have diverged from the most recent orbital solution (Seymour & Mason, 2000IAUDS.141....2S); the period of the new solution is about 40 years longer, but may still be an underestimate.
14489+0557 (= STF 1883): This is another pair whose discoverer did not receive proper credit. Although observed by F.G.W. Struve in 1830 (Struve 1837, Mensurae Micrometricae Petropoli), it was first observed by John Herschel a full two years earlier (Herschel 1831, MmRAS, 4, 331). The pair has now completed about 80% of a revolution, and as illustrated in Figure 1, the most recent data are beginning to diverge from the most recent published orbit.