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{
    "localId": "7077466",
    "label": "Sky and Telescope Magazine",
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    "id": "7077466",
    "sourceUrl": "https://catalog.archives.gov/id/7077466",
    "contentType": "document",
    "title": "Sky and Telescope Magazine",
    "description": "This item contains volume seven, issue three, number seventy-five of Sky and Telescope Magazine.",
    "citationUrl": "https://catalog.archives.gov/id/7077466",
    "collections": [
        "Russell W. Porter Papers",
        "Publications"
    ],
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    "url": "https://catalog.archives.gov/id/7077466",
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        {
            "logicalDate": "1948-01-01",
            "month": 1,
            "year": 1948
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{
    "seq": 7,
    "pageIndex": 0,
    "type": "photo",
    "url": "https://s3.amazonaws.com/NARAprodstorage/opastorage/live/66/774/7077466/content/arcmedia/dc-metro/XRWP/gallery/hd1-111196098-2012-024-pr.jpg",
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    "ocrText": "OCCULTATION PREDICTIONS\nSKY - SCOPE\nMars is occulted this month, by a 17-\nWE REPAIR\nday-old moon, for observers in the north-\nMicroscopes\n*\nTelescopes\nThe new 31/2-inch Astronomical\nern tier of states and in Canada. Other\nField Glasses\nBinoculars\nTelescope that is sweeping\nlocations in the United States should wit-\nthe country.\nness a very close conjunction, and at\nWE BUY, SELL, EXCHANGE\nplaces the contact should be grazing. At\nOPTICAL AND SCIENTIFIC\nCompletely Assembled- - Not a Kit\nStation D, near Toronto, the British Nau-\nINSTRUMENTS\nEquatorially Mounted, 60 Power\ntical Almanac shows grazing. The time\n10 Maiden Lane\n1/4-wave Aluminized Mirror\nof the event is favorable - about midnight\nWAELDIN\nNew York City\nBEekman 3-5393\nRamsden Type Ocular\nin the East, and earlier in the evening\ntoward the West. We shall be glad to re-\nPrice $19.75\nceive reports of telescopic observations,\nIncredible as this instrument may seem,\nespecially from those in the borderline\nwe invite your attention to our free bro-\nregions between close conjunction and defi-\nSKY-GAZERS EXCHANGE\nchure describing its amazing performance.\nnite occultation.\nThis occultation occurs nearly a month\nClassified advertisements for this column are\nTHE SKYSCOPE CO., INC.\nafter the moon occulted the star Eta\n8 cents a word, minimum ad 20 words. Remit-\n475-s Fifth Avenue, New York 17, N. Y.\nLeonis, December 30th-31st. This star is\ntance must accompany orders. Address Ad\nagain occulted in January, but only for\nDept., Sky and Telescope, Harvard Observa-\ntory, Cambridge 38, Mass.\nobservers in the Eastern Hemisphere.\nMars will be occulted again on February\nFOR SALE: 4\" Schmidt camera with 6\" pyrex\nmirror, f/1.25, excellent machined mount. Like\n24-25th, with predictions given for sta-\nnew. A bargain at $95.00 J. Russell Smith, 320\nEYE PIECE\ntions A, B, and D.\nMain St., Eagle Pass, Tex.\nJanuary 3-4 m Virginis 5.2, 13:38.9\nFOR SALE: German 10 x 80 binoculars, wide field,\ninclined oculars, illuminated reticle, sun shades,\nBARGAINS\n-8-26.5, 23, Im: A 11:27.7 -2.2 0.1\nheavy altazimuth mount with circles, and tripod.\nC 11:19.3 -1.9 -0.4 112; E 10:57.9 -1.1\nPerfect condition. $200.00. W. L. Schofield, Todd\n-0.6 135; F 11:10.3 +0.4 3.3 183. Em:\nUnion, River Campus, Rochester 3, N. Y.\nEYE PIECE-KELLNER'S, brand\nA 12:35.5 -0.8 -2.0 339; C 12:37.5 -1.3\nWE HAVE several Robinson Hauchin Optic Co.\nnew, E.F.L. 27mm. (1 1/16 inch).\n-1.7 325; E 12:15.8 1,6 -0.7 302;\noptical polishing machines for sale. Single\nspindle without legs or motor- $75.00. With\nCoated optics. Focusing mount with\nF 11:58.9 -3.5 +1.5 258; G 11:44.9 -0.9\nlegs and motor-$125.00. General Engineering,\nplus & minus 4 diopter scale. Clear\n+0.5 293; I 11:35.1 -0.9 +1.2 279.\nInc., 2527 Frederick Ave., Baltimore 23, Md.\n27-28 MARS -0.7, 10:34.0 +13-36.0,1\nAM SELLING my critically selected 5\" single and\naperture eye lens 19/32 inch. 1¹/4\ndouble achromatic object glasses, also 10 and\ninch O.D. across threads at objective\nIm: A 5:05.1\n195; B 4:51.1\n15 x 80 mm. and 5\" battleship binoculars (clear\n-2.9 173; G 4:15.5 -0,4 -0.4 151;\naperture 20x), to finance one of three large\nend. This is a beautiful job you will\ntriplet 8\" super-refractors now being figured and\nI 4:13.0 -0.3 - -0.4 151. Em: A 5:22.7\nbuilt by Ferson. One item of great interest to\nbe proud of in both appearance and\n224; B 5:31.4 -2.2 F2.4 245; G 4:58.9\nobservatories. Price range $200.00 to $600.00.\nperformance.\nSend stamped envelope for listing and full de-\n-0.4 +2.2 252; I 4:53.8 -0.1 +2.2 249.\nscriptions. F. L. Goodwin, 345 Belden Ave.,\nStock # 24\n$6.50 ea.\nJanuary 31-February 1 Lambda Virginis\nChicago 14, Ill.\n4.6, 14:16.3 -13-08.0, 21, Im: E 13:28.7\nFOR SALE: 1,000 new photomultiplier tubes RCA\nACHROMATIC ERECTING LENS\n-2.3 -0.6 79; F 13:20.9 -2.3 - 1.1 109;\n931 as mentioned in October article on photom-\netry, $8.00 each, less in quantity. (List $35.00.)\nSYSTEM, six elements, coated and\nH 12:32.8 -1.3 - -1.0 137. Em: E 14:27.9\nJ. Holeman, 305 Thayer Dr., Richland, Wash.\nmounted in 1¹/4 inch dia. by 1 % inch\n-1.0 -2.5 341; F 14:42.2 - 1.5 -2.1 317;\nSPECIAL HOLIDAY offer-Ocular chest formerly\nlong aluminum mount. This is a\nG 13:45.6 -0.9 - 1.2 330; H 13:54.4 -2.0\n$2.50, now $1.50. Telescopes and accessories.\nreally high grade erector made by\n-0.9 298; I 13:37.7 -1.1 -0.8 315.\nValley View Observatory, 106 Van Buren St.,\nPittsburgh 14, Pa.\nthe same company and for the same\nFebruary 2-3 Delta Scorpii 2.5, 15:57.3\nFOR SALE: Webb's \"Atlas of the Stars,\" contain-\ninstrument as our # 100 A&B ob-\n-22-28.5, 23, Im: A 13:47.5 -1.8 -1.3\ning 9th-magnitude stars from the north pole to\n115; C 13:43.6 -1.9 - 1.3 122; E 13:16.3\n20° south. 149 pages, cloth bound. Price $5.50.\njectives.\n\"The Observer's Star Atlas,\" good in any loca-\n-1.7 -1.0 133; F 13:22.1 -0.9 -2.5 166;\ntion. 33 pages. Price $1.50. 'Observations of\nStock # 101\n$5.00 ea.\nG 12:45.2 -0.6 -0.2 147; I 12:43.4 +0.1\nMars and Its Canals,\" contains 51 pages; 187\ndrawings made during the apparitions of 1937-\n-0.9 165. Em: A 15:07.9 -1.3 278;\n1939. Price $2.00. Harold B. Webb, 145 Presi-\nEYE PIECE E.F.L. one inch, re-\nC 15:06.5 1.5 -1.2 274; E 14:39.6 -2.1\ndent St., Lynbrook, N. Y.\nmovable reticle, coated lenses, field\n-0.8 273; F 14:23.6 -3.4 +0.7 247;\nFOR SALE: Four brand new reflectors, each one\nlens is an achromat, 1-1/16\" dia.\nG 13:51.4 -1.8 +0.8 265; I 13:32.0 -2.1\nguaranteed. 4\", 6\", 8\". No mounts included. Also\nthreaded mount. Clear aperture eye\n+1.6247.\none 12¹/2\" pyrex mirror, polished but not figured.\nPaul Charette, 58 Columbus St., Fitchburg, Mass.\nlens 15/16 inches. This eye piece was\nFor selected occultations (visible at three or\nmade for M-12 panoramic telescope.\nmore stations in the U. S. and Canada under\nFOR SALE: 10\" pyrex mirror f/8.6, fine polish and\nfairly favorable conditions), these predictions\nparabolic figure. Also 12¹/2\" pyrex mirror f/8,\nStock # 20\n$3.75 ea.\nwith fine polish and figure. Both aluminized.\ngive: evening-morning date, star name, magni-\nBill Haskins, 429 18th St., Santa Monica, Calif.\ntude, right ascension in hours and minutes and\nEYE PIECE-Large, from aircraft\ndeclination in degrees and minutes, moon's age\nFOR SALE: 4\" refractor, altazimuth mounting\nin days, immersion or emersion; standard station\nwith tripod, used but in excellent condition,\nsighting station. In 2% inch dia.\ndesignation, GCT, a and b quantities in minutes,\n$140.00. 10\" aluminized parabolic pyrex mirror,\nthreaded aluminum mount with lock-\nposition angle; the same data for each standard\nf/15, steel cell, $85.00. Tinsley Laboratories,\nInc., 2526 Grove St., Berkeley 4, Calif.\nstation westward.\ning ring. E.F.L. approx. 2 inches.\nLongitudes and latitudes of standard stations\nFOR SALE: 6\" pyrex mirror, 53\" f.1., aluminized,\nCoated optics, clear aperture eye\nare:\nexcellent figure, professional make. Price $40.00.\nlens over 1 inches.\nA +72°.5, +42°.5\nE +91°.0, +40°.0\nJ. L. Siebert, 186 Wohlers Ave., Buffalo 8, N.Y.\nB +73°.6, -45°.6\nF +98°.0, +30°.0\nStock # 22\n$5.00 ea.\nC -77°.1, +38.9\nG +114°.0, +50°.9\nFOR SALE: Iron castings for 6\" to 8\" Springfield\nD +79°.4, +43°. 7\nH +120°.0, +36°.0\nmount with drawings. Prewar cost, $25.00. Make\nI\noffer. James R. Sattler, 249 Lincoln St., W. La-\nLenses only for above.\nfayette, Ind.\nThe a and b quantities tabulated in each case\nStock # 22-B\n$3.00 ea.\nare variations of standard-station predicted times\nFOR SALE: 24 books on astronomy, cost $51.58.\nper degree of longitude and of latitude respectively,\nWill sell for half, or trade for Skyscope reflector.\nenabling computation of fairly accurate times for\nVernon H. Ackerman, St. George, S. C.\nPlease use Stock No. when ordering.\none's local station (long. Lo, lat. L) within 200\nor 300 miles of a standard station (long. LoS,\nBEST OFFER takes 6\" reflector with finder, pro-\nfessionally figured pyrex mirror, aluminum tube.\nF. W. Ballantyne\nlat. LS). Multiply a by the difference in longitude\nWrite Alan McClure, 230 Chadbourne Ave.,\n(Lo - LoS), and multiply b by the difference in\nLos Angeles 24, Calif.\nlatitude (L - LS), with due regard to arithmetic\nP.O. Box 382\nsigns, and add both results to (or subtract from,\nWILL BUY copy in good condition: \"Gravitation\nas the case may be) the standard-station predicted\nvs. Relativity Poor \"Canon Der Finsternisse\"\nPoint Pleasant, New York\ntime to obtain time at the local station. Then\nOppolzer; \"Tides\". Darwin \"The Earth Up-\nsets' Osborn. H. Bartenbach, 548 East Sixth\nconvert the Greenwich civil time to your own\nAve., Lancaster, Ohio.\nstandard time.\n80\nSkY AND TELESCOPE, January, 1948"
}