22 



KNOWLEDGE. 



[Januaky 1, 1895. 



23° 16', and an apparent diameter of 46". On the 22nd 

 he sets at 6h. Im. a.m., with a northern decHnation of 

 23° 17', and an apparent diameter of 4.5V. On the 31st 

 he sets at 5h. 22m. a.m., or 2h. 21m. hefore sunrise, with 

 a northern declination of 23° 18', and an apparent 

 diameter of llj''. During the month he describes a short 

 retrograde path from the confines of Gemini into Taurus, 

 being exceedingly near the 5th magnitude star 1 Geminorum 

 on the 5th. The following phenomena of the satellites 

 occur while the Sun is more than 8° below and Jupiter 8° 

 above the horizon : — On the 2nd an occultation reappearance 

 of the first satellite at 5h. 3f)m. a.m. ; a transit ingress of the 

 second satellite at 8h. 4m. p.m., and of its shadow at 8h. 

 37m. P.M.; a transit egress of the satellite at lOh. 40m. p.m., 

 and of its shadow at lib. 14m. p.m. On the 8rd a transit 

 ingress of the first satellite at 2h. 57m. a.m , of its shadow 

 At 3h. 14m. A.M. ; a transit egress of the satellite at 5h. 13m. 

 A.M., and of its shadow at 5h. 30m. a.m. On the 4th an 

 occultation disappearance of the first satellite at 5h. 5m. a.m.; 

 a transit ingress of the third satellite at Ih. 57m. a.m. ; 

 an eclipse reappearance of the first sateUite at 2h. 37m. 39s. 

 a.m. ; a transit ingress of the shadow of the third satelHte 

 at 8h. 11m. a.m., a transit egress of the sntellite itself at 

 4h. 46m. a.m., and of its shadow at 6h. 3m. a.m. ; an 

 eclipse reappearance of the second satellite at 6h. 13m. 8s. 

 P.M. ; a transit ingress of the first satellite at 9h. 23m. 

 P.M., and of its shadow at 9h. 43m. p.m. ; a transit 

 egress of the first satellite at llh. 39m. p.m., and 

 of its shadow at llh. 59m. p.m. On the 5th an 

 occultation disappearance of the first satellite at 6h. 31m. 

 P.M., and its eclipse reappearance at Dh. 6m. 223. 

 P.M. On the 6th a transit egress of the first satellite at 

 6h. 5m. P.M., and of its shadow at 6h. 28m. p.m. On the 

 7th an eclipse reappearance of the third sateUite at 

 7h. 46m. 49s. p.m. On the 8th an occultation disappear- 

 ance of the second satellite at 4h. 8m. a.m. On the 9th a 

 transit ingress of the shadow of the fourth satellite at 

 4h. Om. 55s. a.m., its transit egress at 5h. 18m. a.m. ; a 

 transit ingress of the second satellite at lOh. 20m. p.m., 

 of its shadow at llh. 14m. p.m. On the 10th a transit 

 egress of the second satellite at Oh. 57m. a.m., and of its 

 shadow at Ih. 52m. a.m. ; a transit ingress of the first 

 sateUite at 4h. 41m. a.m., and of its shadow at 5h. 9m. a.m. 

 On the 11th an occultation disappearance of the first 

 satellite at Ih. 50m. a.m., its eclipse reappearance at 

 4h. 32m. 44s. a.m. ; a transit ingress of the third satellite 

 at 5h. 15m. a.m. ; an occultation disappearance of the 

 second satellite at 5h. 15m. p.m., its eclipse reappearance 

 at 8h. 48m. 38s. p.m. ; a transit ingress of the first sateUite 

 at llh. 7m. p.m., a transit ingress of its shadow at 

 llh. 37m. P.M. On the 12th a transit egress of the first 

 satellite at Ih. 23m. a.m., and of its shadow at Ih. 54m. 

 p.m. ; an occultation disappearance of the first satellite at 

 8h. 16m. P.M., and its eclipse reappearance at llh. Im. 29s. 

 P.M. On the 18th a transit ingress of the first sateUite at 

 5h. 33m. P.M., and of its shadow at 6h. 38m. p.m. ; a transit 

 egress of the first satellite at 7h. 50m. p.m., and a transit 

 egress of its shadow at 8h. 23m. p.m. On the 14th an 

 eclipse reappearance of the first satellite at 5h. 30m. 19s. 

 p.m. ; an occultation disappearance of the third satellite at 

 6h. 43in. P.M., and its eclipse reappearance at llh. 48m. 5s. 

 P.M. On the 17th a transit ingress of the second satellite at 

 Oh. 38m. a.m., and of its shadow at Ih. 51m. a.m. ; a transit 

 egress of the sateUite at 3h. 15m. a.m., and of its shadow 

 at 4h. 29m. a.m. On the 18th an occultation disappearance 

 of the first sateUite at 3h. 35m. a.m. ; an occultation 

 disappearance of the second satellite at 7h. 31m. p.m., and 

 its ecUpse reappearance at llh. 28m. 58s. p.m. On the 

 19th a transit ingress of the first sateUite at Oh. 52m. 



A.M., and of its shadow at Ih. 82m. a.m. ; a transit egress 

 of the satellite at 3h. 8m. a.m., and of the shadow at 

 3h. 48m. A.M. ; an occultation disappearance of the first 

 satellite at lOh. Im. p.m. On the 19th an eclipse 

 reappearance of the first satellite at Oh. 56m. 44s. a.m. ; 

 a transit egress of the shadow of the second satellite 

 at 5h. 48m. p.m. ; a transit ingress of the first satellite 

 at 7h. 19m. p.m., of its shadow at 8h. Im. p.m. ; a 

 transit egress of the satellite at 8h. Im. p.m., and of its 

 shadow at 9h. 35m. p.m. On the 21st an eclipse reappear- 

 ance of the first satellite at 7h. 25m. 36s. p.m. ; an 

 occultation disappearance of the third sateUite at Oh. 54m. 

 a;m., its eclipse disappearance at Ih. 2m. 49s. a.m., and 

 its eclipse reappearance at 3h. 49m. 21s. a.m. On the 

 24th a transit ingress of the second satellite at 2h. 58m. 

 A.M., and of its shadow at 4h. 28m. a.m. On the 25th a 

 transit egress of the shadow of the third satellite at 

 6h. 5m. P.M. ; an occultation disappearance of the second 

 satellite at 9h. 49m. p.m. ; a transit ingress of the shadow 

 of the fourth satellite at lOh. 89m. p.m., and its egress at 

 llh. 48m. p.m. On the 26th an eclipse reappearance of 

 the second satellite at Ih. 59tn. 193. a.m. ; a transit 

 ingress of the first satellite at 2h. 38m. a.m., and of its 

 shadow at 3h. 27m. a.m. ; an occultation disappearance of 

 the first satelUte at llh. 48m. p.m. On the 27th an 

 eclipse reappearance of the first satellite at 2h. 52m. 6s. 

 a.m. ; a transit ingress of the shadow of the second satellite 

 at 5h. 47m. p.m., a transit egress of the satellite itself at 

 6h. 46m. P.M., and of its shadow at Kh. 26m. p.m. ; a 

 transit ingress of the first satellite at 9h. 5m. p.m.. and 

 of its shadow at 9h. 55m. p.m. ; a transit egress of the 

 satellite itself at llh. 21m. p.m. On the 28th a transit 

 egress of the shadow of the first satellite at Oh. 12m. a..m. ; 

 an occultation disappearance of the first satellite at 

 6h. 15m. P.M., and its eclipse reappearance at 9h. 21m. 

 p.m. On the 29th an occultation disappearance of the 

 thii'd satellite at Ih. 32m. a.m.; a transit egress of the 

 first sateUite at 5h. 48m. p.m., and of its shadow at 

 6h. 41m. P.M. 



As Saturn does not rise till after midnight at the end of 

 the month, we defer an ephemeris of him till February ; 

 and Uranus is also, for the purposes of the amateur, 

 invisible. 



Neptune is an evening star, and is well situated for 

 observation. He rises on the 1st at 2h. 5m. p.m., with 

 a northern declination of 20° 57', and an apparent 

 diameter of 2-7". On the 81st he rises at three minutes 

 after noon, with a northern declination of 20° 54'. A map 

 of the small stars near his path will be found in the 

 Eni/lish Mechanic for September 7th, 1894. He describes 

 a short retrograde path in Taurus to the S.W. of i Tauri. 



December is a fairly favourable month for the observation 

 of shooting stars, the most important shower being the 

 Quadrantids, the radiant point being in R.A. 15h. 12m. 

 and 53 north declination, the greatest display being visible 

 during the morning hours of .January 1st to 3rd. 



The Moon enters her first quarter at 7h. 52m. a.m. on the 

 4th ; is fuU at 6h. 50m. a.m. on the 11th ; enters her last 

 quarter at lOh. 55m. p.m. on the 17th ; and is new at 

 9h. 26m. P.M. on the 26th. She is in perigee at midnight 

 on the 11th, and in apogee at 6h. p.m. on the 26th. At 

 7h. 50m. P.M. on the 1st the 5^ magnitude star h^ 

 (83) Aquarii will disappear at an angle of 117°, and 

 reappear at 8h. 23m. p.m. at an angle of 176°. At 8h. 49m. 

 P.M. on the 6th the 6th magnitude star 47 Arietis wUl 

 disappear at an angle of 66°, and reappear at lOh. 4m. 

 P.M. at an angle of 248°. On the evening of the 7th the 

 Moon will pass through the Pleiades. At 8h. 55m. p.m. 

 the 4th magnitude star 17 Tauri (Electra) will make a 



