286 



KNOWLEDGE 



[Deoembeb 1, 1894. 



portions of Libra and Scorpio into Ophiuchus, being 3' 

 south of the 2nd magnitude star j3^ Scorpii at 5h. a.m. on 

 the 10th. 



Venus is too near the Sun for observation in December. 



Mars is an evening star, and can still be observed, 

 though his apparent diameter is getting perceptibly smaller. 

 He rises on the 1st at about Ih. 50m. p.m., with a northern 

 declination of 8° 47', and an apparent diameter of 15-0", 

 the phase on the w /' limb amomiting to nearly 1". On 

 the 10th he rises at Ih. 15m. p.m., with a northern declina- 

 tion of 9° 41', and an apparent diameter of 13^^", the 

 phase amounting to 1-1", and the apparent brightness of 

 the planet being about what it was in the middle of 

 August. On the 17th he rises at Oh. 50m. p.m., with a 

 northern declination of 10° 32', and an apparent diameter 

 of 12i", the phase amounting to 1-1". On the 24th he 

 rises at Oh. 25m. p.m., with a northern declination of 

 11° 29', and an apparent diameter of IH". On the 31st 

 he rises at noon, with a northern dechnation of 12*^ 31', 

 and an apparent diameter of lOf ", the phase amounting 

 to 1"1", and the apparent brightness of the planet being 

 about the same as it was about the end of .Tune. Mars 

 describes a direct path from the confines of Pisces into 

 Aries. 



Jupiter is an evening star, and is very well situated for 

 observation, being in opposition on the 23rd (distance 

 from the earth about 386 millions of miles). He rises on 

 the 1st at 5h. 21m. p.m., with a northern declination of 

 28° 7', and an apparent equatorial diameter of 4(5". On 

 the 6th he rises at 4h. 58m. p.m., with a northern 

 declination of 23° 9', and an apparent equatorial diameter 

 of 46|". On the 16th he rises at 4h. 13m. p.m., with a 

 northern declination of 23° 12', and an apparent equatorial 

 diameter of 46-8". On the 24th he rises at 3h. 34m. p.m., 

 with a northern declination of 23° 14', and an apparent 

 equatorial diameter of 46-8". On the 31st he rises at 

 8h. 3m. p.m., with a northern declination of 23° 15', and an 

 apparent equatorial diameter of 46'7". During the month 

 the planet pursues a retrograde path in Gemini, to the 

 west of /x Geminorum. The following phenomena of the 

 satellites occur while the Sun is 8° below and Jupiter 8° 

 above the horizon : — On the 1st a transit ingress of the 

 shadow of the second satellite at 8h. 53m. p.m., of the 

 satellite itself at 9h. 57m. p.m., a transit egress of the 

 shadow of the satellite at lib. 29m. p.m. At midnight an 

 8^ magnitude star will be between the third satellite and the 

 planet. On the 2nd a transit egress of the second satellite 

 at Oh. 88m. a.m., a transit ingress of the shadow of the first 

 satellite at 6h. 40m. a.m. ; an eclipse disappearance of the 

 third satellite at 9h. 5m. 24s. p.m. ; a central occultation 

 of a 10th magnitude star at 7h. a.m. On the 3rd an occul- 

 tation reappearance of the third satellite at Ih. 51m. a.m., 

 an eclipse disappearance of the first satellite at 8h. 50m. 5s. 

 A.M. ; an occultation reappearance of the first satellite at 

 6h. 34m. A.M. ; an occultation reappearance of the second 

 satellite at 7h. 36m. p.m. On the 4th a transit ingress of 

 the shadow of the first satellite at Ih. 8m. a.m., of the 

 satellite itself at Ih. 37m. a.m. ; a transit egress of the 

 shadow of the first satellite at 8h. 24m. a.m., and of 

 the satellite itself at 3h. 53m. a.m. ; an eclipse disappearance 

 of the first satellite at lOh. 18m. 36s. p.m. On the 5th an 

 occultation reappearance of the first satellite at Ih. Om. a.m., 

 a transit ingress of its shadow at 7h. 37m. p.m., a transit 

 ingress of the sateUite itself at 8h. 3m. p.m., a transit 

 egress of the shadow at 9h. 58m. p.m., and of the satellite 

 itself at lOh. 19m. p.m. On the 6th an occultation re- 

 appearance of the first satellite at 7h. 26m. p.m. On the 

 7th an eclipse disappearance of the second satellite at 

 6h. 20m. 49s. a.m. On the 8th a transit ingress of the 



shadow of the second satellite at llh. 29m. p.m. On 

 the 9th a transit ingress of the second satellite at Oh. 12m. 

 A.M., a transit egress of its shadow at 2h. 5m. a.m., and a 

 transit egress of the satellite itself at 2h. 48m. a.m. On 

 the lOth an eclipse disappearance of the third satellite at 

 Ih. 5m. 13s. A.M., its occultation reappearance at 5h. 9m. 

 a.m. ; an eclipse disappearance of the first sateUite at 

 5h. 44m. 21s. a.m. ; an eclipse disappearance of the second 

 satellite at 6h. 38m. 16s. p.m., and its occultation reappear- 

 ance at 9h. 50m. p.m. On the 11th a transit ingress of the 

 shadow of the first satellite at 3h. 3m. a.m., a transit ingress 

 of the satellite itself at 3h. 21m. a.m., a transit egress of 

 its shadow at 5h. 19m. a.m., and of the satellite itself at 

 5h. 87m. a.m. On the 12th an eclipse disappearance of 

 the first satelhte at Oh. 12m. 53s. a.m., its occultation 

 reappearance at 2h. 44m. a.m., a transit ingress of its 

 shadow at 9h. 81m. p.m., a transit ingress of the sateUite 

 itself at 9h. 47m. p.m., a transit egress of the shadow at 

 llh. 47m. p.m., and a transit egress of the satellite itself 

 j three minutes after midnight. On the 18th a transit egress 

 j of the shadow of the third satellite at 6h. Im. p.m., an 

 j eclipse disappearance of the first satellite at 6h. 41m. 38s. 

 I P.M., a transit egress of the third satellite at 6h. 59m. p.m., 

 and an occultation reappearance of the first satellite at 

 9h. 10m. P.M. On the 14th a transit egress of the shadow 

 of the first satellite at 6h. 16m. p.m., and a transit egress 

 of the sateUite itself at 6h. 29m. p.m. ; a transit ingress of 

 the shadow of the second satellite at 2h. 5m. a.m., a transit 

 ingress of the satellite itself at 2h. 26m. a.m., a transit 

 egress of the shadow at 4h. 42m. A.m., and a transit egress 

 of the satellite itself at 5h. 8m. a.m. On the 17th an 

 eclipse disappearance of the third satellite at 5h. 4m. 84s. 

 A.M. ; an eclipse disappearance of the second satellite at 

 9h. 18m. 20s. p.m. On the 18th an occultation reappear- 

 ance of the second satellite at Oh. 3m. a.m. ; a transit 

 ingress of the shadow of the first sateUite at 4h. 57m. a.m., 

 and a transit ingress of the satellite itself at 5h. 4m. a.m. 

 On the 19th an eclipse disappearance of the first satellite 

 at 2h. 7m. 20s. a.m., and its occultation reappearance at 

 4h. 28m. a.m. ; a transit egress of the shadow of the second 

 satellite at 6h. Om. p.m., and a transit egress of the satellite 

 itself at 6h. 10m. p.m. ; a transit ingress of the shadow 

 of the first satellite at llh. 25m. p.m., and a transit ingress 

 of the satellite itself at llh. 30m. p.m. On the 20th 

 a transit egress of the shadow of the first satellite at 

 Ih. 42m. A.M., and a transit egress of the satellite itself at 

 Ih. 46m. A.M. ; a transit ingress of the shadow of the third 

 satellite at 7h. 11m. p.m., a transit ingress of the sateUite 

 itself at 7h. 26m. p.m. ; an eclipse disappearance of the 

 first satellite at 8h. 86m. 2s. p.m. ; a transit egress of the 

 shadow of the third satellite at lOh. Im. p.m., a transit 

 egress of the satellite itself at lOh. 14m. p.m. ; an occultation 

 reappearance of the first satellite at lOh. 63m. p.m. On 

 the 21st a transit ingress of the shadow of the first 

 satellite at 5h. 54m. p.m., a transit ingress of the satellite 

 itself at 5h. 56m. p.m. (here the satellite wiU possibly 

 occult its shadow), a transit egress of the shadow at 

 8h. 10m. P.M., and of the satellite itself at 8h. 12m. 

 P.M. On the 22nd an occultation reappearance of the 

 first sateUite at 5h. 19m. p.m.; at lOh. 20m. p.m. a 

 7i magnitude star is 18" north of the limb. On the 

 23rd a transit ingress of the shadow of the second 

 satellite at 4h. 41m. a.m., and of the satellite itself at the 

 same time (the satellite probably occulting its shadow). 

 On the 24th an occultation disappearance of the second 

 sateUite at llh. 40m. p.m. On the 25th an eclipse reappear- 

 ance of the second sateUite at 2h. 20m. 153. a.m. ; a 

 transit ingress of the first satellite at 6h. 48m. a.m., and 

 a transit ingress of its shadow at 6h. 51m. a.m. On the 



