89 THILOSOPHICAL TRANSACTIONS. [aNNO 178 6. 



the air is very clear, make it appear nebulous, which probably is the reason why 

 Flamsteed marked it thus in his catalogue. 



0- or PtoL and Ul. Beiglis 17 ih Eriduni. — Flamsteed says, he could not see 

 this star in 1691 and 1692. In 1782, 1783, and 1784, I observed one of the 

 7th magnitude in that place ; the relative brightness of which appeared always 

 the same, viz. less than two little stars near and below n Eridani. 



Flamsteed" s 41 Tauri. — This star was thought by Cassini to be a new one or 

 variable. I see little or no reason to be of that opinion ; that it is not new is 

 evident, since it is Ul. Beigh's 26th and Tycho's 43d. In 1784 and 1785 I 

 found it of the 5th magnitude, being equal to f, and brighter than 4^, p, and ;^ 

 Tauri. 



Star about 2^° North of 53d Eridani, and 47 Eridani. — The first of these 

 stars Cassini thought a new one, and that it was not visible in l664. In 1784 I 

 found it was less than w, and d, brighter than a, and seemed equal to v|/ Eridani. 

 Cassini mentions another star thereabouts, which he also esteemed a new one : 

 this is probably Flamsteed's 47th. In 1784 it appeared rather less than 46th. 



y Canis Majoris. — Maraldi could not see this star in 167O ; but in 1692 and 

 1693 it appeared of the 4th magnitude. I have very frequently noticed it since 

 1782, but perceived not the least variation, being constantly of the 4 th magni- 

 tude, very little brighter than 0, and decidedly brighter than i. 



a(3 Geminorum. — If either of these stars have changed in brightness, it is pro- 

 bably the (3. In 1783, 1784, 1785, the |3 was undoubtedly brighter than a. 



g Leonis. — Montanari says, this star was hardly visible in 1693. I found it 

 constantly in 1783, 1784, and 1785, of the same brightness, being of the 5th^ 

 magnitude ; less than a, tt, and, if any difference, rather brighter than h and u 

 Leonis. Tycho, Flamsteed, Mayer, Bradley, &c. mark it of the 4th mag- 

 nitude. 



\|y Leonis. — This star is said to have disappeared before the year 1667. It is 

 now, and has ever been since 1783, of the 5 .6th magnitude, being less than w, 

 and brighter than i, Flamsteed's 46th. 



25/A Leonis. — In 1783 1 first perceived this star was missing; nor was it visible 

 in 1784 and 1785, even with the transit-instrument. 



Bayers i Leonis, or Tycho's 16 Leonis. — It was not visible in 1709, nor could 

 I see it in 1785. This is a diff^erent star from the i Leonis of the other cata- 

 logues, though Tycho's description of its place is the same. 



S Ursce Majoris. — This star is suspected to change in brightness, on account 

 of its being marked by Tycho, prince of Hesse, &c. of the 2d magnitude ; while 

 Hevelius, Bradley, and others, have it of the 3d. At present, and for these 3 

 years past, it appears as a bright 4th magnitude, being rather less than *, equal 

 to a, and rather brighter than k Draconis. 



