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NASA Technical Report R-277 - July 1968 |
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Free to download. Govt. Pub. |
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Duration |
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| 1820 Oct 17 | S of Sinus Iridum | Brilliant spots in Mare Imbrium S of Sinus Iridum | Luthmer | Luthmer 1824 |
| 1821 Feb 5-6 | Aristarchus, vicinity | Luminous appearance on dark side; 6th to 7th mag, 3' to 4' diameter | Kater, Olbers, Browne | Kater 1821; Olbers 1822, 1824; Gauss 1874; Houzeau and Lancaster 1964 ed. |
| 1821 Apr 7 | Posidonius | Appeared without shadow | Gruithuisen | Webb 1962 ed., p.110 |
| 1821 May 4-6 | Aristarchus, vicinity | Bright spot on dark side, <1' diameter | Ward, Baily | Ward 1822; Baily 1822 |
| 1821 Jul 25 | Dark side | Brilliant flashing spots | Gruithuisen | Gruithuisen 1824 |
| 1821 Nov 28, ~20h00m | Dark side | Variable bright spot like 6th mag star | Fallows | Fallows 1822 |
| 1822 Jan 27 | Aristarchus, vicinity | Bright spot like 8th mag star | F.G.W. Struve | Struve 1823 |
| 1822 Jun 22-23 | Aristarchus | Lunar "volcano" | Ruppell | Ruppell 1822 |
| 1822 | N/A | "Volcanoes" on the moon; several occasions | Flaugergues | Flaugergues 1822 |
| 1822 | N/A | Lunar "volcano" | Zach | Zach 1822 |
| 1824 May 1 | Near Aristarchus | Blinking light, 9th to 10th mag on dark side | Gobel | Gobel 1826 |
| 1824 Oct 18 | Aristarchus, vicinity | Mingling of all kinds of colors in small spots in the W and NW of Aristarchus | Gruithuisen | Gruithuisen 1824; Fauth 1899 |
| 1824 Oct 20, 05h00m | Dark side, Mare Nubium | Bright area 100 x 20 km | Gruithuisen | Flammarion 1884; Azevado 1962 |
| 1824 Dec 8 | Plato | Bright fleck in SE part of crater | Gruithuisen | Sirius 1879 |
| 1825 Apr 8 | Plato | W part of crater brighter than E part | Gruithuisen | Sirius 1879 |
| 1825 Apr 22 | Aristarchus and vicinity | Periodic illumination | Argelander, Gobel | Argelander 1826, Gobel 1826 |
| 1825 Dec 1, 23h45m | Ptolemaeus | Bright spot | Schwabe | Sel.J. 1880 |
| 1826 Apr 12, 20h00m | Mare Crisium | Black moving haze or cloud | Emmett | Emmett 1826; Capron 1879 |
| 1826 Apr 13, 20h00m | Mare Crisium; 1 hr | Cloud less intense | Emmett | Capron 1879 |
| 1832 Jul 4 | Mare Crisium | Speckled with minute dots and streaks of light | T.W. Webb | Astr.Reg. 1882; Webb 1962 ed., p.105 |
| 1832 Dec 25 | Aristarchus, vicinity | Bright spot | C.P. Smyth | Smyth 1836 |
| 1835 Dec 22, 18h30m | Near Aristarchus | Bright spot, 9th to 10th mag | C.P. Smyth | Smyth 1836 |
| 1836 Feb 13 | Messier | Two straight lines of light; a band between covered with luminous points | Gruithuisen | Sci. Amer. Supp. Vol.7 |
| 1839 Jun 24 | Grimaldi | Smoky-gray mist | Gruithuisen | B.A.A. Mem. 1895 |
| 1839 Jul 7 | South Pole | Twilight | Gruithuisen | B.A.A. Mem. 1895 |
| 1839 Jul 19 | Schroter | Dark mist | Gruithuisen | B.A.A. Mem. 1895 |
| 1842 Jul 8, 07h02m | N/A | During solar eclipse, moon's disk occasionally crossed by bright streaks | N/A | Wullerstorff 1846; Zantedeschi 1846 |
| 1843 Jul 4 | Peak S of Alps | On terminator saw an unusually bright spot that glowed like a fixed star | Gerling | Gerling 1845; Sirius 1888 |
| 1844 Apr 25 | SW of Pico | A bluish glimmering patch of light, not quite within the night side of the moon | J.Schmidt | Sel.J. 1878 |
| 1847 Mar 18, 19 | Dark side | Large luminous spots on dark side | Rankin, Chevalier | Rankin 1847; Houzeau and Lancaster 1964 ed. |
| 1847 Dec 11, 18h00m | Teneriffe Mts. | A bright spot about 1/4-ang diam of Saturn was perceived which, though it varied in intensity like an intermittent light, was at all times visible (dark side) | Hodgson | Hodgson 1848 |
| 1848 Mar 19 | N/A | During eclipse rapid changes in .... (wording illegible) | Gorjan | M.N. 1847-48 |
| 1849 Feb 11 | Posidonius | Without normal shadow | J.Schmidt | Webb 1962 ed., p.110 |
| 1854 Dec 27 | Teneriffe Mts. (near Plato); 5 hr | Two luminous fiery spots on bright side. "... an appearance I had never seen before on the surface of the moon though I have observed her often these last 40 years .... It appeared to me from the brightness of the light and the contrast of colour to be two active volcanoes or 2 mouth of one in action." | Hart | Hart 1855 |
| 1855 Jun 20 | N/A | Traces of twilight seen. Webb gives low weight to observation "for want of better optical means." | Webb | Webb 1962 ed., p.97 |
| 1862 Jun 12, 06h19m | N/A | "During [lunar] eclipse, the E [IAU:W] side dark brick red and something seemed to oscillate before it." At the mid-eclipse on the S side, "a very small meniscus was seen nearly the color of the uneclipsed moon." | N/A | Liais 1865 |
| 1864 May 15 and Oct 16 | Mare Crisium, E of Picard | Bright cloud | Ingall | Ingall 1864 |
| 1864 | N/A | Bright spot | Birt | Birt Birt 1864 |
| 1865 Jan 1 | SE of Plato; 30 min | Bright spot like 4th mag star slightly out of focus. Bright speck remained changeless for 30 min, and its light was steady. | Grover | Grover 1866; Webb 1962 ed., p.114 |
| 1865 Apr 10 | Mare Crisium, E of Picard | Point of light like star. Whole of Mare Crisium intersected with bright veins, mixed with bright spots of light. Aperture 4-1/2 in.; 4 hr before full moon | Ingall | Astr. Reg. 1866 |
| 1865 Sep 5 | Mare Crisium, E of Picard | Point of light like star, with misty cloud | Ingall | Astr. Reg. 1866 |
| 1865 Nov 24 | Carlini; 1 hr 30 min | Dark side, distinct bright speck like 8th mag star | Williams and two others | Webb 1962 ed., p.125 |
| 1865 | Mare Crisium | Dots and streaks of light | Slack, Ingall | Webb 1962 ed., p.105 |
| 1866 Jun 10 | Aristarchus | Starlike light | Tempel | Denning, Tel.Work p.121 |
| 1866 Jun 14-16 | Aristarchus, vicinity | Reddish-yellow | Tempel | Tempel 1867 |
| 1866 | Dark side | Bright spots | Hodgson | Hodgson 1866 |
| 1867 Apr 9, 19h30m - 21h00m | Aristarchus, vicinity; 1 hr 30 min | Bright spot on dark side, 7th mag, becoming fainter after 20h15m UT | Elger | Elger 1868 |
| 1867 Apr 12, 07h30m - 08h30m | Aristarchus, vicinity; 1 hr | Bright spot on dark side, 7th mag. | Elger | Webb 1962 |
| 1867 May 6-7 | Aristarchus; at least several hours each night | Left side of crater, very bright luminous point, appearing like a volcano | Flammarion | Flammarion 1884 |
| 1867 May 7 | Aristarchus, vicinity | Reddish-yellow, beacon-like light | Tempel | Tempel 1867; Astr. Reg. 1868 |
| 1867 Jun 10 | Sulpicius Gallus | Three blackish spots | Dawes | The Student Vol.1 |
| 1867 | Dark side | Bright spots | W.O. Williams | Williams 1867 |
| 1870 May 13 | Plato | Bright spots, extraordinary display | Pratt, Elger | Rept. Brit. Assn. 1871 |
| 1870 | N/A | White spots on the moon, "lightning". | Birt | Birt 1870 |
| 1870 | Godin | Purplish haze illuminating floor of crater, still in shadow | Trouvelot | Trouvelot 1882; Moore 1963 |
| 1871 | Plato | Streak of light across floor visible while crater in shadow | Elger | Sirius 1887 |
| 1871 | W of Plato | Fog or mist | Elger, Neison | Flammarion 1884 |
| 1872 Jul 16 | Plato | NE portion of floor hazy | Pratt | Capron 1879 |
| 1873 Jan 4 | Kant | Luminous purplish vapors | Trouvelot | Trouvelot 1882; Flammarion 1884; Moore 1963 |
| 1873 Apr 10 | Plato | Under high sun, two faint clouds in W part of crater | Schmidt | Sirius 1879 |
| 1873 Nov 1 | Plato | Unusual appearance | Pratt | Capron 1879 |
| 1874 Jan 1 | Plato | Unusual appearance | Pratt | Capron 1879 |
| 1877 Feb 20, 09h30m - 10h30m | Eudoxus; 1 hr | Fine line of light like luminous cable drawn W to E across crater | Trouvelot | Flammarion 1884; l'Astron. 1885 |
| 1877 Feb 27, 19h19m | N/A | Lunar eclipse. Flickering light on lunar surface | Dorna | L'Opin. Nazion. 1877 |
| 1877 Mar 17, 06h45m | N/A | Moon's horns showed traces of atmosphere. Moon 2d16h old (2.75 in. reflector) | Dennett | Eng. Mech. 1882 |
| 1877 Mar 21 | Proclus | Brilliant illumination | Barrett | Eng. Mech. 1882 |
| 1877 May 15, 20h30m and
May 29, 00h35m |
E of Picard | Bright spot | N/A | Eng. Mech. 1882 |
| 1877 Jun 17, 22h30m | Bessel | Minute point of light (seen with 2.75 in. reflector) | Dennett | Eng. Mech. 1882 |
| 1877 Jul 29 | Plato | S of center of crater, bright streak, disappeared at 2:30am | Gray | Flammarion 1884 |
| 1877 Aug 23-24, 23h10m | N/A | Lunar eclipse.
(1) Unusual spectrum with strong absorption in yellow. (2) Two patches of crimson light of short duration |
(1) Airy;
(2) Capron, Pratt |
(1) Sirius 1878;
(2) Capron 1879 |
| 1878 Feb 2, 08h16m | At limb | Changes in spectrum during solar eclipse suggesting lunar atmosphere | Observers at Melbourne, Australia | Sirius 1878 |
| 1878 Mar 10, 19h20m | Mare Crisium | White patch E of Picard badly defined | Noble | Sel. J. 1878 |
| 1878 Oct 5, 21h40m | Plato | Faint bright shimmer like thin white cloud | Klein | Klein, Woch. fur Astr.; Sirius 1878 |
| 1878 Oct 21 | 3 hr | Half of moon's terminator obliterated | Hirst | Capron 1879 |
| 1878 Nov 1 | Messier | Obscuration of Messier | Klein | Pop. Astr. 1902 |
| 1878 Nov 9, 21h00m | Plato | Faint but unmistakable white cloud, not seen before | Klein | Sirius 1878 |
| 1878 Dec 4 | Agrippa, Klein's Object and the oval spot nearby | "Odd misty look as if vapour were in or about them." | Capron | Capron 1879 |
| 1878 | E of Picard | White patch | Birt | Eng. Mech. Vol 28 |
| 1878 | Interior of Tycho | Cloudy appearance | Birt | Eng. Mech. Vol 28 |
| 1880 Jan 18 | Whole of Mare Nectaris | Foggy. Fog extended into the floor of Fracastorius. Gruithuisen said that the seeing was unsatisfactory. | Gaudibert | Gaudibert 1880 |
| 1881 Feb 3, 19h00m | Aristarchus (on dark side, limb area) | Very bright (~8.0 mag star) with pulsations | "Gamma" | Sirius 1881 |
| 1881 Jul 4, 00h30m | N/A | "Two pyramidal luminous protuberances appeared on the moon's limb .... These points were a little darker than the rest of the moon's face. They slowly faded away ...." | Several observers | Sci. Amer. 1882 |
| 1881 Aug 6-7 | Aristarchus region | Whole region between Aristarchus and Herodotus and S part of Great Rille (Schroter's Valley) appeared in strong violet light as if covered with fog | Klein | Klein 1902 |
| 1881 Dec 5, 17h09m | Aristarchus | During eclipse, Aristarchus was a white spot in the coppery disk and continued so. (Lunar eclipse) | S.J. Johnson | Johnson 1882; Fisher 1924 |
| 1882 Jan 29, 17h00m - 17h30m | Eudoxus; 30 min | Unusual shadow | N/A | Sirius 1882 |
| 1882 Feb 27, 18h30m - 19h30m and
20h30m - 20h45m |
Eudoxus; 1 hr, and 15 min | Unusual shadow (on Feb 25, the shadow was normal) | N/A | Sirius 1882 |
| 1882 Mar 27, 18h45m | Plato | Floor glowed with milky light | A.S. Williams | Williams 1882 |
| 1882 Apr 24 | Near Godin and Agrippa | Shadows blurred and oscillating. Shadows in Aristoteles steady. Intervals between obscurations, ~10 min | Ridd | Proc. Liverpool Astr. Soc. 1883 |
| 1882 May 19 | Just E of Mare Crisium against Prom. Agarum | Cloud, not less than 100 mi x 40 or 50 mi; no trace seen on May 20 | J.G. Jackson and friends | Eng. Mech. 1882; Strol. Astr. 1966; B.A.A. Lunar Sec. Circ. 1966, 1, No.8 |
| 1882 Jul 17 | Just E of Mare Crisium, against Prom. Agarum | Feathery mist or cloud | J.G. Jackson | Strol. Astr. 1966 |
| 1882 Nov 7, 09h00m | Dark limb | Line of light around dark limb, attributed to atmosphere, well seen, equally bright throughout length. Age of moon 26.5 days | Hopkins | Sirius 1884 |
| 1883 Mar 12, 20h00m | Dark limb | Line of light (see 1882 Nov 7) well seen | Hopkins | Sirius 1884 |
| 1883 Mar 12 | Taruntius and environs | Peculiar blurred appearance. Unmistakable variations in the sharpness of the shadows of the ring plain | Davies | Proc. Liverpool Astr. Soc. 1883; B.A.A. Lunar Sec. Circ. 1966, 1, No 10 |
| 1883 May | Edge of Mare Crisium | Light mist or cloud | J.G. Jackson | Flammarion 1884 |
| 1883 Nov 5, ~18h00m | Aristarchus | Very bright (~7.0-8.0 mag star) | "R" | Sirius 1883 |
| 1884 Feb 5 | Kepler | Illumination in Kepler | Morales | l'Astron. Vol.9 |
| 1884 Oct 4, ~22h03m | Tycho | During eclipse, bright spot like a star of the 2nd mag. (Lunar eclipse) | Parsehian | Parsehian 1885; Fisher 1924 |
| 1884 Nov 29, 19h00m - 21h00m | Aristarchus; 2 hr | Nebulous at center; elsewhere features well defined | Hislop | Sirius 1885 |
| 1885 Feb 19 | Small crater near Hercules | Small crater was dull red with vivid contrast | Gray | l'Astron. Vol.4; Knowledge Vol.7 |
| 1885 Feb 21 | Cassini | Red patches | Knopp | l'Astron. Vol.4 |
| 1885 Jun 10 | Aristarchus | Starlike light | Tempel | Pop. Astr. 1932 |
| 1886 Sep 6 | Plato | Streak of light on dark floor of crater in shadow (67 mm refl.) | Valderama | Sirius 1887 |
| 1887 Feb 1, ~17h00m | Plato | Appearance of light in crater | Kruger | Sirius 1887 |
| 1887 Feb 2 | La Hire | Intense yellow streak that cast shadows around neighbouring features | Klein | Sirius 1903 |
| 1888 Jul 15 | S edge of Alps on dark side of moon | "Lunar volcano"; ~1 mag star. Yellow light tinged with red from refractor's secondary spectrum | Holden | Sirius 1888 |
| 1888 Nov 23, 17h15m | 45 min | A triangular patch of light (seen with 3 1/2 in. refractor and 180 x mag) | von Speissen and others | Sirius |
| 1889 Mar 30 | Copernicus | Black spot | Gaudibert | l'Astron. 1889 |
| 1889 May 11 | Gassendi | Black spot on rim | N/A | l'Astron. 1889 |
| 1889 Jun 6, 22h00m | Plato B and D (Schmidt's designation) | Two extremely bright spots (8 in. refractor) | Evon Lade | Sirius 1889 |
| 1889 Jul 12, ~20h52m | Aristarchus | During lunar eclipse, brilliance in surrounding gloom was striking | Krueger | Krueger 1889; Fisher 1924 |
| 1889 Sep 3 | Alpetragius; 30 min | "Central peak, its shadow and all the floor seem to be seen through haze." | Barnard | Barnard 1892 |
| 1889 Sep 13 | Plinius | White spot over central peak | Thury | Thury 1889a, 1889b |
| 1889 Oct 3-4 | Alpetragius | Hazy | Barnard | Barnard 1892 |
| 1890 Oct 3, ~22h00m | Posidonius | Unusual shadow | Meller | Sirius 1890 |
| 1891 May 23, ~18h20m | Aristarchus region | Lunar eclipse, half hour before end of totality, Aristarchus and region immediately N of it became conspicuous and increased in brightness from that time on | W.E. Jackson | Jackson 1890-91; Fisher 1924 |
| 1891 Sep 16 | Schroter's Valley | "Dense clouds of white vapour were apparently arising from its bottom and pouring over its SE [IAU:SW] wall in the direction of Herodotus." | W.H. Pickering | Pickering 1903 |
| 1891 Sep 17, 18, 23, 25 | Schroter's Valley | Apparent volcanic activity | W.H. Pickering | Pickering 1903 |
| 1891 Oct 14 | Schroter's Valley | Apparent volcanic activity | W.H. Pickering | Pickering 1903 |
| 1891 Nov 7 | Aristarchus | Very distinct luminous point | d'Adjuda | l'Astron. Vol.11 |
| 1892 Mar 31 | Thales | Pale luminous haze | Barnard | Barnard 1892 |
| 1892 May 10 | Schroter's Valley | Apparent volcanic activity | W.H. Pickering | Pickering 1903 |
| 1892 May 11, ~22h53m | N/A | During partial lunar eclipse, extension of earth's shadow beyond the cusps | N/A | Sirius 1892 |
| 1893 Jan 30 | Schroter's Valley | Apparent volcanic activity | W.H. Pickering | Pickering 1903 |
| 1893 Apr 1 | N/A | Shaft of light | de Moraes | l'Astron. Vol.13 |
| 1894 Feb 23 | Henke (now Daniell) and N wall of Posidonius | Strong brownish-red coppery hue in Henke and also on N wall of Posidonius | Krieger | Sirius 1895 |
| 1895 Mar 11, 03h42m | N/A | During lunar eclipse, very striking color in SE quadrant | Foulkes | B.A.A. Mem. 1895 |
| 1895 May 2,
(1)~20h45m; (2)~23h30m |
Plato;
(1)~12-14 min |
(1) Streak of light.
(2) Bright parallel bands in center |
(1)Brenner;
(2)Fauth |
(1)Sirius 1895, 1897;
(2)Sirius 1896, 1897 |
| 1895 Sep 25 | N/A | Shaft of light | Gaboreau | l'Astron. Vol.13 |
| 1896 | Macrobius | Penumbral fringe to shadow | Goodacre | Firsoff 1962 ed., p.90 |
| 1897 Jun 14 | Schroter's Valley | Apparent volcanic activity | W.H. Pickering | Pickering 1903 |
| 1897 Sep 21, 23h00m | Aristarchus | Glimmering streaks | Molesworth | Goodacre 1931 |
| 1897 Oct 8, 10, 13, 15 | Schroter's Valley | Apparent volcanic activity | W.H. Pickering | Pickering 1903 |
| 1897 Dec 9 | Wm. Humboldt | Light chocolate border to shadow on E wall | Goodacre | B.A.A. Mem. 1898 |
| 1898 Jan 8, 00h30m | Tycho region | About mid-eclipse, shadow so dense that details of surface disappeared entirely, except that bright ray extending SSW from Tycho was clearly visible throughout its whole extent and continued so throughout eclipse. (Lunar eclipse) | Chevremont | Chevremont 1898; Fisher 1924 |
| 1898 Apr 6-8 | Schroter's Valley | Apparent volcanic activity | W.H. Pickering | Pickering 1903 |
| 1898 Jul 3, 21h47m | Proclus | Half hour after mid-eclipse, the crater shone with reddish light in shadow. (Lunar Eclipse) | Moye | Moye 1898; Fisher 1924 |
| 1898 Dec 27, ~23h38m | Aristarchus | During eclipse, Aristarchus brilliant (Lunar eclipse) | Stuyvaert | Niesten and Stuyvaert 1898-99; Fisher 1924 |