20 Lyncis

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20 Lyn
Σ 1065, BD+50 1420, WDS J07223+5009

Type  Binary Star
Magnitude  7
Right Ascension  7h 22' 14"  (2000)
Declination  50° 8' 54" N
Constellation  Lynx
Description  Binary 7.7/7.9 15" @ 256°
Observing Notes

Captain William Henry Smyth
May 23, 1835    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A neat double star, on the animal's chest; and 16 east-north-east of Capella. A and B, both 7½, and silvery white. This object is No. 61 of ♅.'s List of 145, but no measures were given; and Piazzi noted it double, in these words, " Duplex. Comes ejusdem magnit. 2" circiter temporis sequitur, 15" circiter ad boream," thus assuming the opposite quadrant to that which has been adopted. The other measures are:
    H. and S. Pos. 252° 39'  Dist. 15".96  Ep. 1823.33
Σ. 253° 25' 15".04 1830.55
[WDS 256° 15".10 2018 ]
From a comparison of these results the relative fixity of these stars may be deduced; but B has a slight proper motion in declination, amounting perhaps to -0".07 per annum, which is a mean of several authorities. [Gaia DR2 data shows both stars sharing very similar proper motion and parallax, with B moving at -24.026 mas in RA and -41.119 mas in dec]
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
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Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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20 Lyncis