5» 



SCIENCE- G OS SIP. 



CONDUCTED BY F. C. DENNETT. 







Position at Noon. 



190] 



Rises. Sets. 



R.A. 



Dec. 



Julj 



h.m. h.m. 



h.m. s. 



o / // 



Sun . . 4 



.. 3.51 a.m. .. 8.17 p.m. .. 



6.51.13 .. 



22.55.42 N. 



14 



.. 4.0 a.m. .. 8.11 p.m. .. 



7.32.9 .. 



21.45.40 N. 



24 



. . 4.13 a.m. . . 7.59 p.m. . . 



8.12.19 .. 



19.58.31 N. 





Rises. Souths. 



Sets. Age at Noon. 



July 



h.m. h.m. 



h.m. 



d. h.m. 



Moon . . 4 



.. 9.23 p.m. .. 1.46 a.m. . 



6.46 a.m 



.. 17 22.27 



14 



.. 2.33 a.m. ..10.42 a.m. . 



6.46 p.m 



.. 27 22.27 



24 



. . 1.58 p.m. .. 6.39 p.m. . 



. 10.14 p.m 



.. 8 13.50 







Position at Noon. 





Souths. Semi- 



R.A. 



Dec. 





July h.m. diameter, h.m.s. 



O 1 11 



Mercury . . 



4 .. 0.59-0 p.m. .. 5-7" . 



. 7.46.22 . 



. 17.47.31 N. 





14 ..11.55-8 a.m. .. 5-8" . 



. 7.22.21 . 



17.19. 2 N. 





24 .. 11.1-3 a.m. .. 4-8" . 



. 7. 7.14 . 



.18.33.55 N. 



Venus 



4 .. 1.19-2 p.m. .. 5-2" . 



. 8. 6.17 . 



.21.42.42 N. 





14 .. 1.30-4 p.m. .. 5-3" . 



8.56.59 . 



18.51.32 N. 





24 .. 1.39-6 p.m. .. 5-5" . 



9.45.37 . 



15 . 8.55 N. 



Mars 



14 .. 4.35-0 p.m. .. 2-9" . 



12. 1.57 . 



0.10.32 N. 



Jupiter . . 



14 ..10.59-4 p.m. ..21-6" . 



18.28. 3 . 



.23.17.23 S. 



Saturn . . 



14 ..11.25-3 p.m. .. 8-5" . 



.18.53.59 . 



.22.24.44 S. 



Uranus . . 



14 .. 9.20-2 p.m. .. 1-9" . 



.16.48.19 . 



22.27.11 S. 



Neptune . . 



14 ..10.32-8 a.m. .. 1-2" . 



. 5.59.11 . 



.22.18.19 N. 





Moon's Phases. 







h.m. 





h.m. 



Full . . July 1 .. 11.18 p.m. 3rd Ql 



. July 9 



. 3.20 a.m. 



New . . 



, 15 .. 10.10 p.m. 1st Qr 



„ 23 



. 1.58 p.m. 



Full . . 



, 31 .. 10.34 a.m. 







In perigee July 11th at 12 p.m. ; and in apogee 

 on 24th at 3 a.m. 



Meteors. 



. 



h.m. 



o 



June 13 to July 7 Vulpeculids Radiant R.A.20.8 



Dec. 24 N.' 



July 11 „ 19 a Cygnids „ „ 



20.56 



„ 48 N. 



„ 15 „ 28 a Capricornids „ „ 



20.16 



„ 12 N. 



„ 15 „ 30 y Andromedids ,, „ 



1.36 



„ 43 N. 



„ 23 to Aug. 4 a-/3 Perseids „ „ 



3.8 



„ 43 N. 



„ 27-29 5 Aquarids „ „ 



22.36 



,. 12 S. 



Conjunctions of Planets with 



THE 



Moon. 



July 1 . . . . Jupiter . . 9 p.m. . . 



Planet 3.42 S. 



„ 2 . . . . Saturn*f . . -7 a.m. 





3.36 S. 



„ 15 . . . . Mercury* . . 4 p.m. 



„ 



0.37 S. 



„ 17 .. .. Venus* .. 6 p.m. 



„ 



6.55 N. 



„ 21 .. .. Mars* .. 2 p.m. .. 





4. 6N. 



„ 28 .. .. Jupiter .. 11p.m. 





3.37 S. 



„ 29 . . . . Saturn*f • • Noon 



„ 



3.34 S. 



* Daylight. f Below the horizon. 





OCCULTATIONS. 







Angle 





Angle 



Magni- Dis- from 



Re 



from 



July Star. tude. appears. Vertex. 



appears. Vertex. 



h.m. 



h.m. 



° 



28 .. 21 Sa^ittarii 4-9 .. 9.51p.m. .. 61 . 



.11. 6p 



m. .. 271 



29 .. d ., 4-9 .. 8.33 p.m. .. 116 . 



9.48 p 



m. .. 252 



The Sun, since the large group, covering an 

 area of about 86,600 miles by 43,000 miles, passed 

 round the limb, has resumed its appearance of 

 quiescence. It is in apogee at 5 p.m. on July 4th. 



Mercury is an evening star at the beginning of 

 the month, but comes into inferior conjunction 

 with the Sun at noon on July 13th, after which it 

 is a morning star, rising in the north-east just 

 before 3 a.m. at the end of the month, passing a 



little south of the 3-7 magnitude double star 

 5 Geminorum. 



Venus is an evening star, in Leo at the end of the 

 month, near Regulus on 26th, setting a little more 

 than an hour after the Sun. 



Mars, situated in Virgo, is beyond the reach of 

 small instruments so far as markings are con- 

 cerned. 



Jupiter is as well situated for observation in 

 the constellation Sagittarius as its great southern 

 declination will permit. It rises at about 8 p.m. 

 at the beginning of July and two hours earlier at 

 the end. On July 3rd, from 11.2 p.m. until 

 2.6 a.m. on 4th, Satellite III. may be seen in 

 transit, its shadow following it 20 minutes after. 

 On 4th II. and its shadow are in transit until after 

 midnight. On 7th I. and its shadow will be on 

 the disc at 12 p.m. On July 23 I. is in transit 

 from 9.43 to 12.1, its shadow following it at an 

 interval of 33 minutes of time. 



Saturn is in Sagittarius just east of Jupiter, 

 and, coming into opposition at 9 p.m. on July 5th, 

 is in the best position its southern declination 

 wdll permit. Its widely open rings present an 

 ellipse having the apparent angular diameters 

 42"-67 and 17"'95 on 4th, whilst the diameter of 

 the ball is 17"'0. The object is very beautiful 

 when the air is sufficiently steady. 



Uranus coming to the meridian two hours before 

 Saturn may be found in the southern part of 

 Ophiuchus. 



Neptune is too near the Sun for observation. 



Jupiter. — There is a very interesting spot visible 

 this season in the bright band immediately north 

 of the North Equatorial belt. It is shown in the 



drawing made with Wray's 3-inch Science-Gossip 

 telescope power 130. Its rotation period appears to 

 be 9h. 55.36 m. It has been observed by Captain 

 Molesworth, Mr. A. Stanley Williams, and others. 

 It passed the central meridian between 1.30 and 

 1.35 a.m. on June 3rd. The drawing is dated 

 May 17th, 2h. 40 m. a.m. Nights when good ob- 

 servations can be made seem few and far between. 



Planetary Detail — For examination of detail 

 Mars needs very high powers, the eye-pieces 

 usually supplied with telescopes being too low. A 

 less power than 216 was useless to make out the 

 detail shown on p. 346 of S.-G., N.S., vol. vii. 

 This is mentioned because we hear that some 



