FOR 1897. HENRY ECKFORD RHOADES, Editor: ECLIPSES, 1897. (Astronomical calculations made expressly for The Tribune Almanac by Berlin H. Wright, Penn Yan, N. Y.) There will be two eclipses this year, both of the sun, and visible as follows: I. An annular eclipse of the sun, February 1, visible in the Southern and Atlantic States, near sunset, as a small partial eclipse upon the sun's southern limb. The eclipse will be invisible north of a line drawn from near Lowell, Mass., through Harrisburg, Penn., Memphis, Texarkana and Waco, Tex. At Boston, New-York, Philadelphia, Washington and Nashville the eclipse will be very small, being scarcely more than a contact of limbs about sunset, the sun setting with the eclipse on. This eclipse will return February 13, 1915, when it will be visible in South Africa. II. An annular eclipse of the sun, July 29, visible as a partial eclipse upon the sun's southern limb throughout the United States, except in Alaska. This eclipse will return August 10, 1915, when it will be visible in India and Southern Asia. TO FIND THE TIME OF GREATEST ELONGATION OF POLARIS. TABLE I. By adding the numbers in the annexed table for any given latitude to the time of meridian passage of Polaris (the Pole Star), in Table III, the time of its greatest western elongation is found. If the same number be subtracted instead of added, we get the time of greatest eastern elongation. At the time of either elon gation the magnetic bearing Constant may be taken with the transit compass, using that Elonga elongation which occurs at tion. night. The eastern elongations occur at night from H. M. S. 5:54:48 April 1 to October 11, and 5:54:44 the western elongations oc5:54:39 cur at night all the rest of the year. Correct local time 5:54:35 is to be used, and bearings 5:54:30 Latitude North, Lati. tude North. Constant Latitude North. 5:54:15 minute in the timepiece 5:54:10 will not invalidate the 5:54:05 bearing, as Polaris moves 5:54:00 then nearly vertically. 5:54:25 on the star taken promptly TABLE II. MEAN TIME OF SIDEREAL NOON, OR MERIDIAN PASSAGE OF THE VERNAL EQUINOX AT WASHINGTON, Þ..C., FOR 1897. (For other places, add 9.83 seconds for each hour of longitude east of Washington, and subtract 9.83 seconds for each hour of 5:12:43 3:10:50 1:20:44 11:18:51 9:20:54 7:19:01 5:21:03 H. M. S. 3:19:10 H. M. S. 1 1:17:17 H. M. S. 11:15:24 H. M. S. 9:13:31 H. M. S. 7:15:33 5:08:47 3:06:54 1:16:48 | 11:14:55 9:16:58 7:15:05 5:17:07 3:15:14 1:13:21 11:11:28 9:09:35 7:11:37 3. 5:04:51 3:02:58 1:12:53 11:10:59 9:13:02 7:11:09 5:13:12 3:11:18 1:09:25 11:07:32 9:05:39 7:07:41 1.... 2. 5..... 11. 4:33:24 | 2:31:31 0:41:25 10:39:32 8:41:35 12. 4:29:28 2:27:35 0:37:29 10:35:36 8:37:39 6:35:46 4:37:48 2:35:55 0:34:02 10:32:09 8:30:16 6:32:18 13. 4:25:32 2:23:39 0:33:33 10:31:40 8:33:43 6:31:50 4:33:52 2:31:59 0:30:06 10:28:13 8:26:20 6:28:22 16. 4:13:44 2:11:51 0:21:46 10:19:53 8:21:55 6:20:02 4:22:05 2:20:11 0:18:18 10:16:25 8:14:32 6:16:35 18. 4:05:53 2:03:59 0:13:54 10:12:01 8:14:03 6:12:10 4:14:13 2:12:20 0:10:27 10:08:33 8:06:40 6:08:43 19. 20. 3:58:01 1:56:07 0:06:02 10:04:09 8:06:12 6:04:18 4:06:21 2:04:28 0:02:35 10:00:42 7:58:48 6:00:51 10:00:13 8:02:16 6:00:22 4:02:25 2:00:32 Morn. 9:56:17 7:58:21 5:56:27 3:58:29 1:56:36 11:50:47 TABLE 111. TIMES OF UPPER MERIDIAN PASSAGE OF POLARIS, OR NORTH STAR, 1897. Surveyors and civil engineers may obtain the variation of the magnetic needle for any place in the United States by directing A TABLE OF ONE HUNDRED AND THIRTEEN BRIGHT STARS. To ascertain when any star or constellation found in the following Table will be on the upper meridian, add the numbers opposite in the left-hand column of figures to the time of "Sidereal Noon" found in Table II. For the rising of a star, subtract the number opposite in the right-hand column of figures from its meridian passage. For the setting of a star, add the same number to its meridian passage. Those marked (...) revolve in a circle of perpetual apparition, and do not rise nor set north of the latitude of New-York (40° 42′ 40′′). Stars having an asterisk (*) in the last column are seen only in Florida and Texas, when passing the meridian. G NAME OF STAR. For NAME OF STAR. For For Ris- H. M. H. м. a Andromedæ (Alpheratz)....... 0 3752 8 Ursæ Majoris (Merak). H. м.н. м. ... 10 54 a Ursæ Majoris (Dubke)......... 10 56 ẞ Cassiopeiæ (Caph)............ 04 086 510 Leonis 0 20 2 25 8 Leonis (Zozma).. 0 35 ẞ Leonis (Denebola). 0 38 4 53 y Ursæ Majoris (Phad) 11 46 050 al Crucis (Acrux) 12 19 13 y Crucis.. 1 4 8 29 1 19 5 30 1 21 1 34 1 46 5 157 6 * 22 1 49 7 14 7 1 57 9 21 2 17 26 2 38 6 9 2 11 5 48 2 56 6 13 3 19 10 B Corvi. 8 Crucis a Coronse Borealis (Alphecca)... 4 29 6 58 a Serpentis (Unuk)........ 5 8 10 14 8 Scorpii 5 95 31 5 18 6 21 5 19 7 52 5 26 5 59 5 30 5 56 81 Scorpii. a Scorpii (Antares) 8 Herculis (Rutilicus). a Herculis A Scorpii (Lesuth)... 5 85 8 37 y Aræ. 5 42 5 26 a Aræ... 5 49 6 26 3 Draconis (Rastoban). 5 51 9 53 0 Scorpii 6 87 24 a Ophiuchi (Ras Alhague). 6 15 4 1 y Draconis (Etanin) 6 17 4 55 μ1 Sagittarii. 6 21 * e Sagittarii 6 31 6 59 a Lyræ (Vega). 6 37 7 36 B Lyræ.... 6 40 5 1 Sagittarii 6 54 4 7a Aquile (Altair).... 7 13 7 22 a2 Capricorni (Giedi). 7 19 4 5 a Pavonis 7 27 8 11 a Cygni (Deneb)...... 7 33 6 19 7 38 7 50 8 51 31 8 19 * 7 59 2 58 9 21 5 31 a Cephei (Alderamin). 8 Aquarii 8 Cephei (Alphirk) Pegasi (Enif). a Aquarii a Gruis a Pisces Australis (Fomalhaut).. 9 13 5 Pegasi... 9 38 7 31 8 Pegasi (Scheat).. 10 16 44 a Pegasi (Markab).. 10 13 7 14 y Cephei (Er Rai).. 10 39 9 45 7 42 * Example. The seven stars will be on the meridian for January 1, 1897, at 8h. 53m. 43s., evening, and will set at 4h. 22m. 43s. in the morning of January 2, and would rise at 1h. 24m. 43s. in the afternoon of the 1st, but would not be visible then, the sun being up. |